JDBC/Servlets Connectivity Problems.

Hi,
I'm new to Java development.
I'm trying to run this simple Servlet on
OS : Sun Solaris 2.6
Web Server : Netscape Enterprise Server
Database : Oracle 8i
JDK2 and JSDK2 installed on the Server.
JDBC Driver : Native Oracle JDBC Driver
This program works perfect on the Server if I run it as a program (Not a Servlet). However when running it as a Servlet, JUST DOESN't do ANYTHING. Doesn't return any error nor does execute the SQL Command.
Also how can I enable tracing to Trap errors generated on the Server by the Servlet.
Thanks for all your help....
Here's the Pogram:
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.sql.*;
import oracle.jdbc.driver.*;
public class CreateTable1 extends HttpServlet {
public void init(ServletConfig config)
throws ServletException {
super.init(config);
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
ServletOutputStream out = response.getOutputStream();
out.println("<html>");
out.println("<head><title>CR2Reat Table Server</title></head>");
out.println("<body>");
out.println("<br>Before Create...");
try {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection con = DriverManager.getConnection("jdbc:oracle:kprb:@oracle","uername","password");
Statement statement = con.createStatement();
statement.executeUpdate("CREATE TABLE kj_newCont1" +
"(title_id NUMBER, title_name VARCHAR2(50)," +
"rating CHAR(5), price NUMBER(7,2), quantity NUMBER," +
"type_id INTEGER, category_id INTEGER)");
catch (SQLException sqle) {
System.err.println(sqle.getMessage());
catch (Exception e) {
System.err.println(e.getMessage());
out.println("<br>AfterClose");
out.println("</body></html>");
out.close();
public String getServletInfo() {
return "Title Servlet return Information...";
null

To run servlets you must have a special server to run them like JRun or Java Web Server visit www.allaire.com to download JRun
You must also download the servlet.jar
java.sun.com
you must configure your CLASSPATH too
CLASSPATH=".:<path>classes12_01.zip":".:<path>servelet.jar"
I'm using Red Hat Linux 6.2 I think this can Help you

Similar Messages

JDBC/MYSQL Connection problems

I'm new to using JDBC so I'm not sure if I'm simply doing something wrong in my code or if I've installed something incorrectly. I've got the JDBC connector/J installed properly as far as I can tell. At least when I run my code I'm not getting an error about the driver not being found. The problem I'm running into is that even though I've double and triple checked the authentication info I keep getting the following error:
Exception in thread "main" java.sql.SQLException: Invalid authorization specification message from server: "Access denied for user: '[email protected]' (Using password: YES)"
The actual connection commands I'm using are as follows:
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con = DriverManager.getConnection("jdbc:mysql://localhost/Test", "testusr", "testpwd");
I've checked and rechecked the spelling of my mySQL user & password and as far as I can tell, they work just fine so I can't figure out why I would be getting this error. Any suggestions on things I can try or does anyone see any obvious errors in what I'm doing?

The failure is caused not by the JDBC driver but by how the MySQL was configured
when it was installed. By default, MySQL is configured to allow connections that
are created only from within the localhost.
The line
DriverManager.getConnection("jdbc:mysql://localhost:3306/Test?user=testusr& password=testpwd") translates to "create a connection to MySQL running at 'localhost' and use the
'testusr@<hostname.domain>' as user name and 'testpwd' as the password".
If you can see, the <hostname.domain> is replaced with "other value" aside from
the "localhost" which you expect, hence connection is denied.
The '<hostname.domain>' is replaced with the value of either your IP address or
hostname. Therefore, any connections created from outside the host where your
server is running will be denied. Now, making the 'host' value set from
'localhost' to '%' would tell MySQL that you are allowing connections created from
outside the MySQL host to connect to the server.
Another way to go around this is problem is to modify your
"\Windows\system32\drivers\etc\hosts" OR "/etc/hosts" file and give
your loopback address (127.0.0.1) another alias (aside from localhost), e.g.:
127.0.0.1 localhost <hostnameY.domain>
192.168.1.1 <hostnameX.domain> <hostnameY.domain>where you replace <hostnameY.domain> with the name/alias of your computer in
the network. The domain is optional and depends upon the domain name that
your network is using.

JDBC SqlServer connection problem

Hi,
I'm trying to connect to a local Sql Server database. I started out connecting to a database on another computer on the network by using the following code:
//Set up connection to database
String driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
String serverName = "10.42.8.102";
String portNumber = "1433";
String mydatabase = serverName + ":" + portNumber;
String databaseName = "traffic";
String url = "jdbc:microsoft:sqlserver://" + mydatabase +";databaseName="+databaseName+";";
String username = "sa";
String password = "foobar";
// Load the JDBC driver
Class.forName(driverName);
// Create a connection to the database
connection = DriverManager.getConnection(url, username, password);
This worked fine. However, when I started trying to connect to a database on my own computer, I started having problems. The database I'm trying to connect to is listed under the node "TERRAIN\BEATTHETRAFFIC" in SqlServer's Enterprise Manager. The database name is still traffic, and the user name and password are unchanged. My new code is as follows:
String driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
String serverName = "localhost/TERRAIN/BEATTHETRAFFIC";
String portNumber = "1433";
String mydatabase = serverName + ":" + portNumber;
String databaseName = "traffic";
String url = "jdbc:microsoft:sqlserver://" + mydatabase +";databaseName="+databaseName+";";
String username = "sa";
String password = "foobar";
// Load the JDBC driver
Class.forName(driverName);
// Create a connection to the database
connection = DriverManager.getConnection(url, username, password);
I have also tried the following as the serverName:
"TERRAIN\\BEATTHETRAFFIC"
"localhost/TERRAIN\\BEATTHETRAFFIC"
"127.0.0.1/TERRAIN\\BEATTHETRAFFIC"
I have tried the above with / instead of \\ as well.
With these, I get the error:
[Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.
I have also tried doing
"localhost:TERRAIN\\BEATTHETRAFFIC" and
"localhost:TERRAIN/BEATTHETRAFFIC" and used 127.0.0.1 instead of "localhost" as well.
but with these I get
[Microsoft][SQLServer 2000 Driver for JDBC]Unable to connect. Invalid URL.
I'm honestly at my wits' end here. I haven't really tried to connect to a Sql Server database before, and haven't done much work with connecting to databases in general, so maybe I'm making some glaringly obvious mistake, so if anyone could point it out, I'd be very grateful.

For the value of serverName, you need to use an Internet-style host name, or an IP-address, not a Windows resource name.
Examples of an internet-style host name are:
this_host
this_host.my_company.com
Names with slashes in them are not Internet-style.
The requirement is that name be something that your operating system can convert to an IP address. At least on newer versions of Windows (and most versions of Unix/Linux) you can find out the host name, with the "hostname" command. On windows:
Click the Start button.
Click the Run... link
Enter "cmd" into the command line and click OK ( a new command window will open)
In the new command window, enter "hostname" and hit enter. The system will give you the host name you need to use (upper/lower case does not matter).
To confirm that the name ought to work, in that still-open command window, enter "ping [whatever the host name is]". You should get about 10 lines back that includes 4 lines that begin with "Reply from [your IP address] ..."

Help!! JDBC local connection problem

java.sql.SQLException: E/A-Exception: The Network Adapter could not establish the connection
trying to connect to Oracle database 9.2 on local machine that is part of network, Windows XP, using jdbc.
am using following as connect string :
DriverManager.registerDriver(new
oracle.jdbc.driver.OracleDriver());
Connection conn =
DriverManager.getConnection("jdbc:oracle:thin:@<server_name>:1521:<database_name>",username,password);
Is this correct?
Had no problems using above connecting to a local database on a laptop, also Oracle 9.2, also Windows XP, but not on a network.
tried also :
("jdbc:oracle:thin:@<server_name>.<Domain_name>:1521:<database_name>",username,password);
and
("jdbc:oracle:thin:@<server_name>.<Domain_name>:1521:<global_dbname>",username,password);
but still same error message.
Can connect to database with sqlplus no problem.
Listener is running and listening on port 1521.
Any ideas?
Any help would be greatly appreciated!!
Thank you!
Gil

Okay, connected.
It looks like the correct form is :
Connection conn =
DriverManager.getConnection("jdbc:oracle:thin:@<server_name>:1521:<SID_NAME>",username,password);
got SID_NAME from listener.ora

Forms90 Servlet Connection problems

After entering DB logon credentials, the Forms server appears to hang. However, when I set my trace level to 5 in Jinitiator console. I get the following messages repeated continually and no connection. Does anyone have any ideas as to what may be causing this?
Downloading https://afrissweb11.rs.af.mil/forms90/java/f90all_jinit.jar to JAR cache
connectMode=HTTPS, native.
Forms Applet version is : 902101
Trace level set to 5: basic, net, security, ext, liveconnect ... completed.
Opening https://afrissweb11.rs.af.mil/forms90/l90servlet
Connecting https://afrissweb11.rs.af.mil/forms90/l90servlet with no proxy
Server https://afrissweb11.rs.af.mil/forms90/l90servlet requesting to set-cookie with "JSESSIONID=0c5532f9e0434e64bf508173af48a47c.mknMolbNrQjwah4UaN0KbhD3lN4NagSOb2SRc2SLb34IbAeOmN4InxePb3yPb3fwmMSHc30Ka2bdqA4Toi5hagTvnB9DqRbRnk8LagTMqMTvnwTHokKxc3aRah0M8OX3b4DteyztfAXMplaxhOaOgzX2gjX6pR9HqMbynknvrkLOlQzNp65In0__; Path=/"
Opening https://afrissweb11.rs.af.mil/forms90/l90servlet
Connecting https://afrissweb11.rs.af.mil/forms90/l90servlet with no proxy
Server https://afrissweb11.rs.af.mil/forms90/l90servlet requesting to set-cookie with "JSESSIONID=0c5532f9e0434e64bf508173af48a47c.mknMolbNrQjwah4UaN0KbhD3lN4NagSOb2SRc2SLb34IbAeOmN4InxePb3yPb3fwmMSHc30Ka2bdqA4Toi5hagTvnB9DqRbRnk8LagTMqMTvnwTHokKxc3aRah0M8OX3b4DteyztfAXMplaxhOaOgzX2gjX6pR9HqMbynknvrkLOlQzNp65In0__; Path=/"
Opening https://afrissweb11.rs.af.mil/forms90/l90servlet
Connecting https://afrissweb11.rs.af.mil/forms90/l90servlet with no proxy
Server https://afrissweb11.rs.af.mil/forms90/l90servlet requesting to set-cookie with "JSESSIONID=0c5532f9e0434e64bf508173af48a47c.mknMolbNrQjwah4UaN0KbhD3lN4NagSOb2SRc2SLb34IbAeOmN4InxePb3yPb3fwmMSHc30Ka2bdqA4Toi5hagTvnB9DqRbRnk8LagTMqMTvnwTHokKxc3aRah0M8OX3b4DteyztfAXMplaxhOaOgzX2gjX6pR9HqMbynknvrkLOlQzNp65In0__; Path=/"
Opening https://afrissweb11.rs.af.mil/forms90/l90servlet
Connecting https://afrissweb11.rs.af.mil/forms90/l90servlet with no proxy

I am aware once the logon box appears the servlet is running. It was not serving the form and appeared to be hung. As it was not timing out just the message repeated.
I was able to resolve. It appears there was a problem with the menu. It was converted from an earlier version of forms. I created a new menu in 9i and copied everything from the converted form to the new form. It worked. Apparently, there are problems with the 9i conversion for menus.
Thanks for your response.

Oracle 8.1.5 and JDBC OCI connection problem

We are running Oracle 8.1.5 on Solaris 7 machine, and our java application running on JDK 1.2 connects to Oracle via JDBC thin driver because we couldn't make jdbc oci driver work.
When we try to connect via oci with the driver originally shipped with 8.1.5, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: make_c_state
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:213)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
After we downloaded 8.1.6sdk driver from technet and install it, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no ocijdbc8 in java.library.path
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Error.<init>(Error.java:50)
at java.lang.LinkageError.<init>(LinkageError.java:43)
at java.lang.UnsatisfiedLinkError.<init>(UnsatisfiedLinkError.java:42)
at java.lang.ClassLoader.loadLibrary(Compiled Code)
at java.lang.Runtime.loadLibrary0(Runtime.java:471)
at java.lang.System.loadLibrary(System.java:745)
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:209)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
I searched this forum for answer and only relevent answer from oracle was: consult README file! Readme file mentions that lobocijdbc.so file is shared library file for oci connection. That't all. So what?
I added the directory where libocijdbc8.so resides to LD_LIBRARY_PATH, and System.getProperty("java.library.path") shows content of LD_LIBRARY_PATH correctly.
null

Please this is not simple as simple as checking the classpath and LD_LIBRARY_PATH.
I tried the sample program and the result is the same. As pointed out first by Won, putting the libocijdbc8.so from SDK8.1.6 in the LD_LIBRARY_PATH has no effect at all. It gives the unsatisfied linker error. The sample program fails. However the sample program works fine with the libocijdbc8.so from sdk8.1.5. The library gets loaded. But at the time of creating the connection it gives make_c_state error.
Here is my CLASSPATH, PATH and LD_LIBARY_PATH variables
ORACLE_HOME=/opt/oracle/product/8.1.5
LD_LIBRARY_PATH=/usr/local/lib:/usr/lib:/opt/oracle/product/8.1.5/lib
PATH=/usr/openwin/bin:/usr/sbin:/usr/local/bin:/usr/ccs/bin:/usr/ucb:/opt/oracle/product/8.1.5/lib
Hope you are able to provide better answer then check your environment variables.
THE libocijdbc8.so FROM SDK8.1.6 DOES NOT GET LOADED AT ALL.
Waiting for the reply.
Please Help.
Regards,
Vipul Modi.
Novell Inc.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Won, Taewoong([email protected]):
We are running Oracle 8.1.5 on Solaris 7 machine, and our java application running on JDK 1.2 connects to Oracle via JDBC thin driver because we couldn't make jdbc oci driver work.
When we try to connect via oci with the driver originally shipped with 8.1.5, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: make_c_state
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:213)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
After we downloaded 8.1.6sdk driver from technet and install it, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no ocijdbc8 in java.library.path
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Error.<init>(Error.java:50)
at java.lang.LinkageError.<init>(LinkageError.java:43)
at java.lang.UnsatisfiedLinkError.<init>(UnsatisfiedLinkError.java:42)
at java.lang.ClassLoader.loadLibrary(Compiled Code)
at java.lang.Runtime.loadLibrary0(Runtime.java:471)
at java.lang.System.loadLibrary(System.java:745)
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:209)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
I searched this forum for answer and only relevent answer from oracle was: consult README file! Readme file mentions that lobocijdbc.so file is shared library file for oci connection. That't all. So what?
I added the directory where libocijdbc8.so resides to LD_LIBRARY_PATH, and System.getProperty("java.library.path") shows content of LD_LIBRARY_PATH correctly.
<HR></BLOCKQUOTE>
null

Sender JDBC Adapter - Connectivity Problems

I installed JDBC Driver for Oracle 9 ojdbc14.jar on the J2EE Engine as per the instructions in the How To Guide. I updated the tnsnames.ora on the server appropriately. Also I could connect to Oracle database from the server using sqlplus. I configured my Sender Adapter with the following parameters:
JDBC Driver:oracle.jdbc.driver.OracleDriver
Connection:jdbc:oracle:thin:@ORACLEDEV
I get the following error:
Sender Adapter v2108 for Party '', Service 'ORACLEDEV_BS':
Configured at 2006-03-09 17:24:42 EST
History:
- 2006-03-09 17:24:42 EST: Retry interval started. Length: 60.000 s
- 2006-03-09 17:24:42 EST: Error: Accessing database connection 'jdbc:oracle:thin:@ORACLEDEV' failed: DriverManagerException: Cannot establish connection to URL 'jdbc:oracle:thin:@ORACLEDEV': SQLException: Io exception: SO Exception was generated
- 2006-03-09 17:24:42 EST: Processing started
Help is highly appreciated.
Mike

Hi Bhavesh/Naveen,
You are correct.
Mike, the correct settings are as follows
JDBC Driver: oracle.jdbc.driver.OracleDriver
Connection: jdbc:oracle:thin:@<oracle server>:<port>:XDB<sid>
Username: <oraccle username>
Password: <oracle password
Rgds,
Sam raju

Jdbc-odbc connectivity problem in[b] wsad5.1.2[/b]

while i Try to access the msaccess database using sun.jdbc.odbc.JdbcOdbcDriver,the server is giving the error class not found....sun.jdbc.odbc.JdbcOdbcDriver......
I have already rt.jar containing this class in my jre...
The same thing i tried in wsad5.0 and it is working abs fine....
If anyone has got a time to solve tis query plz help me out...
Its urgent......

well,i think nobody has interest in my question.I have asked two questions.
1)Can anybody tell me the compatibilities of JDBC-ODBC bridge versions,oracle and ODBC drivers?
2)And can u tell me how to connect to oracle through a pure Java JDBC drivers (type 4 drivers) on a standalone system?
But u advise me not to use JDBC-ODBC bridge without studying the other part.

JDBC-ODBC connectivity problem

hi ,i have a j2se 1.4.2 version installed on windows 2000 professional.i have j2me wireless toolkit 2.0,Oracle 8i(8.1.5),tomcat 4.0 running on system.I have tried to connect to the database in Oracle through JDBC-ODBC bridge but it becomes non-responsive.The same has been working well with Oracle 9i versions and also in Oracle 8i when ODBC driver is selected as Microsoft ODBC drivers for Oracle but not with Oracle drivers for Oracle.Can anybody tell me the compatibilities of JDBC-ODBC bridge versions,oracle and ODBC drivers? And can u tell me how to connect to oracle through a pure Java JDBC drivers on a standalone system?

well,i think nobody has interest in my question.I have asked two questions.
1)Can anybody tell me the compatibilities of JDBC-ODBC bridge versions,oracle and ODBC drivers?
2)And can u tell me how to connect to oracle through a pure Java JDBC drivers (type 4 drivers) on a standalone system?
But u advise me not to use JDBC-ODBC bridge without studying the other part.

JDBC MYSQL Connection Problem

Hi guys I have created a database called books in MySQL and I have the following code to test the link of connection. I am using Netbeans.
import java.sql.*;
public class jdbcexample1 {
/** Creates a new instance of jdbcexample1 */
public jdbcexample1() {
* @param args the command line arguments
public static void main(String[] args) {
// TODO code application logic here
Connection con = null;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
con = DriverManager.getConnection("jdbc:mysql:///books", "jhtp6", "jhtp6");
if(!con.isClosed())
System.out.println("Successfully connected to MySQL server...");
} catch(Exception e) {
System.err.println("Exception: " + e.getMessage());
} finally {
try {
if(con != null)
con.close();
} catch(SQLException e) {}
However my program when run gives me the exception message which is
"Exception: com.mysql.jdbc.Driver"
Before you tell me, I have put the "mysql-connector-java-3.0.14-production-bin" in the ext folder of jre and I have also appended the CLASSPATH as follows.
".;C:\PATH\mysql-connector-java-3.0.14-production-bin.jar;" which leads to the jre ext folder.
What am I doing wrong, Have I missed something above and if not what could be wrong with my setup.
Thanks!! :)

Helo,
I have just started with java, I am also using netbeans, I used similar code to test the link, the code gives the following error when compiled:
java.lang.NoClassDefFoundError: JdbcExample1
Exception in thread "main"
Java Result: 1
The code I used is a s follows:
package com.stardeveloper.example;
import java.sql.*;
public class JdbcExample1 {
public static void main(String args[]) {
Connection con = null;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
con = DriverManager.getConnection("jdbc:mysql:///pet", "root", "siemens");
if(!con.isClosed())
System.out.println("Successfully connected to MySQL server...");
} catch(Exception e) {
System.err.println("Exception: " + e.getMessage());
} finally {
try {
if(con != null)
con.close();
} catch(SQLException e) {}
Pls help..
Thanks..
Hi guys I have created a database called books in
MySQL and I have the following code to test the link
of connection. I am using Netbeans.
import java.sql.*;
public class jdbcexample1 {
/** Creates a new instance of jdbcexample1 */
public jdbcexample1() {
* @param args the command line arguments
public static void main(String[] args) {
// TODO code application logic here
Connection con = null;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
con =
DriverManager.getConnection("jdbc:mysql:///books",
"jhtp6", "jhtp6");
if(!con.isClosed())
System.out.println("Successfully connected to MySQL
server...");
} catch(Exception e) {
System.err.println("Exception: " + e.getMessage());
} finally {
try {
if(con != null)
con.close();
} catch(SQLException e) {}
However my program when run gives me the exception
message which is
"Exception: com.mysql.jdbc.Driver"
Before you tell me, I have put the
"mysql-connector-java-3.0.14-production-bin" in the
ext folder of jre and I have also appended the
CLASSPATH as follows.
".;C:\PATH\mysql-connector-java-3.0.14-production-bin.
jar;" which leads to the jre ext folder.
What am I doing wrong, Have I missed something above
and if not what could be wrong with my setup.
Thanks!! :)

JDBC "Closed Connection" Problem

Hi All,
I have a 903 BC4J application that has starting getting "JBO-30003: The application pool (P3iDdmModuleLocal) failed to checkout an application module due to the following exception: oracle.jbo.DMLException: JBO-26066: Error during rollback."
The root cause, however, is "java.sql.SQLException: Closed Connection". Under what circumstances would this occur? The 9i db is not configured with a timeout and, therefore, should not be closing connections at that end.
Shouldn't the connection pool manager capture invalid connections in the pool before the AppMod issues this message?
How can I recover from this error?
All help much appreciated! Thanks!
Paul

ApplicationModule appModule;
//Obtain oracle.jbo.Transaction
Transaction transaction=appModule.getTransaction();
//Connect with a connect method or connectToDataSource method.
transaction.connect("Connection URL");

Serious problem of jdbc-mysql connectivity using tomcat

hi everybody
i m in serious problem since last 15-20 days. i m trying hard to make the connection jdbc-mysql using tomcat with the help of a jsp test page but every time i am facing almost the similar probems listed below in detail:
to make sure that the jdrivers's .jar (mysql-connector-java-3.1.7-bin.jar) available for such connections working fine i have tried the above said connection without using tomcat....which is working fine...for this i have created a dummy database with a dummy table ..and written some queries in the .java file of my code which upon running inserts the specified values in the defined(dummy) database.
this is the confirmation that the classpath etc..are ok in regard to the mysql-connector-java-3.1.7-bin.jar
now i have placed a copy of this .jar file in to the commons/lib directory of the tomcat web server(which is suppossed to be the place for such external jars)
after doing so i have followed 2 methods :
method 1st:........
i have made aone more jar file from the following .java file....
import javax.naming.*;
import javax.sql.*;
import java.sql.*;
public class TestSQLLoad
String user = "Not Connected";
String pwd = "no pwd";
int id = -1;
public void init() {
try{
Context ctx = new InitialContext();
if(ctx == null ) {
throw new Exception("Boom - No Context");
DataSource ds = (DataSource)ctx.lookup("java:comp/env/jdbc/TestDB");
if (ds != null) {
Connection conn = ds.getConnection();
if(conn != null) {
user = "Got Connection "+conn.toString();
Statement stmt = conn.createStatement();
String q = "select name, password, id from user";
ResultSet rst = stmt.executeQuery(q);
if(rst.next()) {
user=rst.getString(1);
pwd=rst.getString(2);
id = rst.getInt(3);
conn.close();
}catch(Exception e) {
e.printStackTrace();
public String getUser() {
return user;
public String getPassword() {
return pwd;
public int getID()
return id;
after compiling it at the cmd prompt i made a .jar file from the .class of it and named it MySQLLoad.jar...then i placed it also in to the commons/lib directory where the mysql-connector-java-3.1.7-bin.jar was already placed.
then i have changed the server.xml and web.xml files from the conf directory of the tomcat as given here:
server.xml



<Server port="8005" shutdown="SHUTDOWN">

<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

<GlobalNamingResources>

<Environment name="simpleValue" type="java.lang.Integer" value="30"/>

<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>


<Service name="Catalina">

<Connector
port="80" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />


<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3" />

<Engine name="Catalina" defaultHost="localhost">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Context path="/testdb" docBase="TOMCAT_HOME/webapps/tomcat-docs/testdb"
debug="5" reloadable="true" crossContext="true" >
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_DBTest_log." suffix=".txt"
timestamp="true"/>
<Resource name="jdbc/TestDB"
auth="Container"
type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/TestDB">
<parameter>
<name>factory</name>
<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
</parameter>
<parameter>
<name>maxActive</name>
<value>10</value>
</parameter>
<parameter>
<name>maxIdle</name>
<value>5</value>
</parameter>
<parameter>
<name>maxWait</name>
<value>10000</value>
</parameter>

<parameter>
<name>username</name>
<value>root</value>
</parameter>
<parameter>
<name>password</name>
<value>mysql</value>
</parameter>

<parameter>
<name>driverClassName</name>
<value>com.mysql.jdbc.Driver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:mysql://localhost/testdb?autoReconnect=true</value>
</parameter>
</ResourceParams>
</Context>
</Host>
</Engine>
</Service>
</Server>
and the other xml file i.e
web.xml is here:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<servlet>
<servlet-name>default</servlet-name>
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/TestDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-cl ***>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>invoker</servlet-name>
<servlet-class>
org.apache.catalina.servlets.InvokerServlet
</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>fork</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>xpoweredBy</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>3</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>

<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jspx</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<mime-mapping>
<extension>abs</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ai</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aif</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aifc</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aiff</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aim</extension>
<mime-type>application/x-aim</mime-type>
</mime-mapping>
<mime-mapping>
<extension>art</extension>
<mime-type>image/x-jg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>asf</extension>
<mime-type>video/x-ms-asf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>asx</extension>
<mime-type>video/x-ms-asf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>au</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>avi</extension>
<mime-type>video/x-msvideo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>avx</extension>
<mime-type>video/x-rad-screenplay</mime-type>
</mime-mapping>
<mime-mapping>
<extension>bcpio</extension>
<mime-type>application/x-bcpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>bin</extension>
<mime-type>application/octet-stream</mime-type>
</mime-mapping>
<mime-mapping>
<extension>bmp</extension>
<mime-type>image/bmp</mime-type>
</mime-mapping>
<mime-mapping>
<extension>body</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cdf</extension>
<mime-type>application/x-cdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cer</extension>
<mime-type>application/x-x509-ca-cert</mime-type>
</mime-mapping>
<mime-mapping>
<extension>class</extension>
<mime-type>application/java</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cpio</extension>
<mime-type>application/x-cpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>csh</extension>
<mime-type>application/x-csh</mime-type>
</mime-mapping>
<mime-mapping>
<extension>css</extension>
<mime-type>text/css</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dib</extension>
<mime-type>image/bmp</mime-type>
</mime-mapping>
<mime-mapping>
<extension>doc</extension>
<mime-type>application/msword</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dtd</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dv</extension>
<mime-type>video/x-dv</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dvi</extension>
<mime-type>application/x-dvi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>eps</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>etx</extension>
<mime-type>text/x-setext</mime-type>
</mime-mapping>
<mime-mapping>
<extension>exe</extension>
<mime-type>application/octet-stream</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gif</extension>
<mime-type>image/gif</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gtar</extension>
<mime-type>application/x-gtar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gz</extension>
<mime-type>application/x-gzip</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hdf</extension>
<mime-type>application/x-hdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hqx</extension>
<mime-type>application/mac-binhex40</mime-type>
</mime-mapping>
<mime-mapping>
<extension>htc</extension>
<mime-type>text/x-component</mime-type>
</mime-mapping>
<mime-mapping>
<extension>htm</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hqx</extension>
<mime-type>application/mac-binhex40</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ief</extension>
<mime-type>image/ief</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jad</extension>
<mime-type>text/vnd.sun.j2me.app-descriptor</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jar</extension>
<mime-type>application/java-archive</mime-type>
</mime-mapping>
<mime-mapping>
<extension>java</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jnlp</extension>
<mime-type>application/x-java-jnlp-file</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpe</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpeg</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpg</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>js</extension>
<mime-type>text/javascript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jsf</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jspf</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>kar</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>latex</extension>
<mime-type>application/x-latex</mime-type>
</mime-mapping>
<mime-mapping>
<extension>m3u</extension>
<mime-type>audio/x-mpegurl</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mac</extension>
<mime-type>image/x-macpaint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>man</extension>
<mime-type>application/x-troff-man</mime-type>
</mime-mapping>
<mime-mapping>
<extension>me</extension>
<mime-type>application/x-troff-me</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mid</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>midi</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mif</extension>
<mime-type>application/x-mif</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mov</extension>
<mime-type>video/quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>movie</extension>
<mime-type>video/x-sgi-movie</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp1</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp2</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp3</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpa</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpe</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpeg</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpega</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpg</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpv2</extension>
<mime-type>video/mpeg2</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ms</extension>
<mime-type>application/x-wais-source</mime-type>
</mime-mapping>
<mime-mapping>
<extension>nc</extension>
<mime-type>application/x-netcdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>oda</extension>
<mime-type>application/oda</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pbm</extension>
<mime-type>image/x-portable-bitmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pct</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pdf</extension>
<mime-type>application/pdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pgm</extension>
<mime-type>image/x-portable-graymap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pic</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pict</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pls</extension>
<mime-type>audio/x-scpls</mime-type>
</mime-mapping>
<mime-mapping>
<extension>png</extension>
<mime-type>image/png</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pnm</extension>
<mime-type>image/x-portable-anymap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pnt</extension>
<mime-type>image/x-macpaint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ppm</extension>
<mime-type>image/x-portable-pixmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ppt</extension>
<mime-type>application/powerpoint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ps</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>psd</extension>
<mime-type>image/x-photoshop</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qt</extension>
<mime-type>video/quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qti</extension>
<mime-type>image/x-quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qtif</extension>
<mime-type>image/x-quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ras</extension>
<mime-type>image/x-cmu-raster</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rgb</extension>
<mime-type>image/x-rgb</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rm</extension>
<mime-type>application/vnd.rn-realmedia</mime-type>
</mime-mapping>
<mime-mapping>
<extension>roff</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rtf</extension>
<mime-type>application/rtf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rtx</extension>
<mime-type>text/richtext</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sh</extension>
<mime-type>application/x-sh</mime-type>
</mime-mapping>
<mime-mapping>
<extension>shar</extension>
<mime-type>application/x-shar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>smf</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sit</extension>
<mime-type>application/x-stuffit</mime-type>
</mime-mapping>
<mime-mapping>
<extension>snd</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>src</extension>
<mime-type>application/x-wais-source</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sv4cpio</extension>
<mime-type>application/x-sv4cpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sv4crc</extension>
<mime-type>application/x-sv4crc</mime-type>
</mime-mapping>
<mime-mapping>
<extension>swf</extension>
<mime-type>application/x-shockwave-flash</mime-type>
</mime-mapping>
<mime-mapping>
<extension>t</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tar</extension>
<mime-type>application/x-tar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tcl</extension>
<mime-type>application/x-tcl</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tex</extension>
<mime-type>application/x-tex</mime-type>
</mime-mapping>
<mime-mapping>
<extension>texi</extension>
<mime-type>application/x-texinfo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>texinfo</extension>
<mime-type>application/x-texinfo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tif</extension>
<mime-type>image/tiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tiff</extension>
<mime-type>image/tiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tr</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tsv</extension>
<mime-type>text/tab-separated-values</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ulw</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ustar</extension>
<mime-type>application/x-ustar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xbm</extension>
<mime-type>image/x-xbitmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xht</extension>
<mime-type>application/xhtml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xhtml</extension>
<mime-type>application/xhtml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xml</extension>
<mime-type>text/xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xpm</extension>
<mime-type>image/x-xpixmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xsl</extension>
<mime-type>text/xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xwd</extension>
<mime-type>image/x-xwindowdump</mime-type>
</mime-mapping>
<mime-mapping>
<extension>wav</extension>
<mime-type>audio/x-wav</mime-type>
</mime-mapping>
<mime-mapping>
<extension>svg</extension>
<mime-type>image/svg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>svgz</extension>
<mime-type>image/svg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>vsd</extension>
<mime-type>application/x-visio</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wbmp</extension>
<mime-type>image/vnd.wap.wbmp</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wml</extension>
<mime-type>text/vnd.wap.wml</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wmlc</extension>
<mime-type>application/vnd.wap.wmlc</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wmls</extension>
<mime-type>text/vnd.wap.wmlscript</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wmlscriptc</extension>
<mime-type>application/vnd.wap.wmlscriptc</mime-type>
</mime-mapping>
<mime-mapping>
<extension>wrl</extension>
<mime-type>x-world/x-vrml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>Z</extension>
<mime-type>application/x-compress</mime-type>
</mime-mapping>
<mime-mapping>
<extension>z</extension>
<mime-type>application/x-compress</mime-type>
</mime-mapping>
<mime-mapping>
<extension>zip</extension>
<mime-type>application/zip</mime-type>
</mime-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
after all this i have taken a jsp page whose code is here:
(the mysql database used is named as "testdb" and the table name is "user" which is having fields name,password and id)
<html>
<head>
<title>DB Test</title>
</head>
<body>
<%
TestSQLLoad tst = new TestSQLLoad ( );
tst.init();
%>
<h2>Results</h2>
User <%= tst.getUser() %>
Pwd <%= tst.getPassword() %>
Id <%= tst.getID() %>
</body>
</html>
and placed it in to the Tomcat 5.5\webapps\tomcat-docs\testdb directory and saved as test-db.jsp
when i run this page on the browser i get a lot may errors stating
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.4 logs.
AND NOW WHEN just to get rid of such errords i try to include a statement
<%@ page import="pkg.TestSQLLoad" %> in the jsp page code (and also place the MySQLLoad.class file in a folder called pkg and place it in the same directory where the jsp page is )and make it look like
<html>
<head>
<%@ page import="pkg.TestSQLLoad" %>
<title>DB Test</title>
</head>
<body>
<%
TestSQLLoad tst = new TestSQLLoad ( );
tst.init();
%>
<h2>Results</h2>
User <%= tst.getUser() %>
Pwd <%= tst.getPassword() %>
Id <%= tst.getID() %>
</body>
</html>
now when i run it i get the following errors:
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
Only a type can be imported. pkg.TestSQLLoad resolves to a package
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
in response to the above error i have even tried placing the MySQLLoad.class directly in the testdb folder along with the jsp page without keeping it in a package named pkg and then importing directly as <@page import="MySQLLoad" %>
that too gave me the following errors
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
The import TestSQLLoad cannot be resolved
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
and if i do not use the statement <%@ page import="MySQLLoad"%> then also i get the errors like
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 11 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 11 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
THE 2nd Method:
in my second method i did the same changes in the web.xml and server.xml
then i took a jsp page with the following code:
<%@ page import="javax.sql.*,java.sql.*,javax.naming.*,com.mysql.jdbc.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> trial doc </TITLE>
</HEAD>
<BODY>
<h1>Trial Document</h1>
<% InitialContext context=new InitialContext( );
DataSource dataSource=(DataSource) context.lookup("java:comp/env/jdbc/testdb");
Connection conn=dataSource.getConnection();
Statement stmt=conn.createStatement();
ResultSet rset=stmt.executeQuery("select * from user");
if (rset.next()){
%>
<table width="100%" border="1">
<tr align="left">
<th>name</th> <th>password</th><th>id</th>
</tr>
<%
do {
%>
<tr><td> <%=rset.getString(1)%> </td>
<td><%=rset.getString(2) %></td>
<td><%=rset.getString(3) %></td></tr>
<%
} while (rset.next());
%>
</table>
<%
} else{
%>
No results from query
<%
rset.close();
stmt.close();
conn.close();
context.close();
%>
</BODY>
</HTML>
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 15 in the jsp file: /testdb/Big1.jsp
Generated servlet error:
The type Connection is ambiguous
An error occurred at line: 15 in the jsp file: /testdb/Big1.jsp
Generated servlet error:
The type Statement is ambiguous
An error occurred at line: 15 in the jsp file: /testdb/Big1.jsp
Generated servlet error:
The type ResultSet is ambiguous
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(C

thanx for ur response
as u said that the problem is more of a jsp page not getting compiled....
me also pointed towards the similar situation providing all the surrounding situations
which i have met and gone through
i m still thinking that problem may b in the tomcat's server.xml and web.xml as well
so better if u plz guide me in that regard
regards,
kuldeep

STRUTS - JDBC connection problem

im using tomcat 5.5.9, jdk 1.5, oracle database...
� have a project in struts...
my project works with my compiler with no problem...
*i setup tomcat on C:\jakarta-tomcat-5.5.9
and � made these setting for tomcat:
� added these strings to my CLASSPATH
--C:\jakarta-tomcat-5.5.9\common\lib\servlet-api.jar
--C:\jakarta-tomcat-5.5.9\common\lib\jsp-api.jar
after � deployed my project under tomcat there was a "classes12.zip" file under this path:
C:\jakarta-tomcat-5.5.9\webapps\BILGISU\WEB-INF\lib
� changed it to class.jar
also � have other .jars under the same path above.
these jars are:
classes12.jar
commons-beanutils.jar
commons-collections.jar
commons-dbcp.jar
commons-digester.jar
commons-fileupload.jar
commons-lang.jar
commons-logging.jar
commons-pool.jar
commons-validator.jar
jakarta-oro.jar
jdbc2_0-stdext.jar
struts.jar
struts-legacy.jar
THE PROBLEM IS:
my index page is a "login" page..
i can open the login page under tomcat.
but when � enter the username and password, page says it is wrong username or password although these are true parameters...
i think i still have a connection problem but � dont know how to solve...
MY SEARCHES SAYS:
you have to reconfigure "C:\jakarta-tomcat-5.5.9\conf\server.xml" like that:
<Resource name="jdbc/myoracle"
auth="Container"
type="javax.sql.DataSource"
driverClassName="oracle.jdbc.driver.OracleDriver"
url="jdbc:oracle:thin:[email protected]:1521:mysid"
username="scott"
password="tiger"
maxActive="20"
maxIdle="10"
maxWait="-1"/>
Resource name="jdbc/myoracle" ->HERE WHAT IS "myoracle"??? DOES IT BELONG TO MY PROJECT?
you have to reconfigure "C:\jakarta-tomcat-5.5.9\conf\web.xml" like that:
<resource-ref>
<description>Oracle Datasource example</description>
<res-ref-name>jdbc/myoracle</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
will i write this to my web.xml
and what is "auth=Container" here???????
thanks in advance
yasin

ONE MORE QUESTION
Im defining the datasource in my "struts-config.xml"
do i have to define them again in "tomcat/conf/server.xml" ...

MSSQLServer jdbc connect problem on ODI 11G R2

I have a MS SQL Server jdbc connect problem on ODI 11G R2 / Windows server 2008 64 bits.
Tried, one by one, all versions of Microsoft drivers.
Sqljdbc4.jar copied to : %appdata%\odi\oracledi\userlib\
The Topology connect syntax is :
driver: com.microsoft.sqlserver.jdbc.SQLServerDriver
URL : jdbc:sqlserver://<host>:1433
=> All the topology tests end with time-outs.
Installed 10G ODI.
Works with 1.4 java and sqljdbc.jar version 2 jdbc driver.
Times out with version 3 and/or Sqljdbc4.jar + JAVA_HOME & ODI_JAVA_HOME set to 1.6 path.
also tried, with no success (time-outs) on either 10g or 11g :
com.inet.tds.TdsDriver
jdbc:inetdae7://<host>:1433?database=<DB>
same results for :
net.sourceforge.jtds.jdbc.Driver
jdbc:jtds:sqlserver://<host>:1433
Any suggestions for a fix?
Many thanks in advance.

Hello,
ODI (11g) Studio is certified on Windows 32 bit only, not on 64bit.
However you may still install it and configure ODI Studio to run with a 32 bit java.
Details pls see Master Note For ODI 11g Install Issues And Questions (Doc ID 1214428.1).
To connect to SQL Server:
# Check and make sure the authentication mode of your Microsoft SQL Server Server is set to "SQL Server and Windows" or "Mixed", otherwise Oracle Data Integrator (ODI) is unable to connect to the database.
# Before you create the Oracle Data Integrator (ODI) Dataserver in Topology Manager > Physical Architecture, stop all ODI processes, and place the JDBC Driver file in the ODI's userlib and "/drivers" folder.
For ODI Studio (Local No Agent)
%APPDATA%\odi\oracledi\userlib
%APPDATA% is the Windows Application Data directory for the user (usually C:\Documents and Settings\<user>\Application Data).
Standalone Agent
ODI_HOME\oracledi\agent\drivers
Note: If you decide to use the DataDirect driver that comes with ODI 11g install/ embedded in ODI 11g
weblogic.jdbc.sqlserver.SQLServerDriver
Then you don't need to worry about this step.
# Make sure that the database is the default database of the user account employed by ODI for connection, and that the password is correct.
# Verify (in your Microsoft SQL Server Server network configuration) that TCP/IP has been enabled on port 1433.
For more details see How To Set Up JDBC Driver Connections For The Microsoft SQL Server For ODI (Doc ID 423914.1)
If you try sqljdbc.jar, you need to configure ODI_JAVA_HOME to jdk1.5
sqljdbc4.jar, jdk1.6 (since ODI 11g requires jdk1.6, I'd suggest sqljdbc4.jar)
More see Compatibility Matrix For Java Machines And JDBC Drivers Used With ODI (Doc ID 807235.1)
Hope that helps other people who run into this,
Edited by: user742480 on Apr 4, 2011 12:06 PM

Orcale 9i jdbc connection problem

dear all
i have one problem with jdbc by orcale when i connect to databae which has some error message by db connection? the driver and connect which is correct if i setup code and db in same machine , but if in diff mechine which indicte that
java.sql.SQLException: IO error: The Network Adapter could not establish the conn
ection

Try this code:
import java.sql.*;
class TestJdbc {
   public static void main (String args [ ]) throws SQLException {
     DriverManager.registerDriver (new oracle.jdbc.OracleDriver());
     Connection conn = DriverManager.getConnection
    ("jdbc:oracle:thin:@myHost:1521:ORCL","username", "password");
     Statement stmt = conn.createStatement ();
     ResultSet rset = stmt.executeQuery
        ("SELECT ename FROM emp");
     while (rset.next ())
        System.out.println (rset.getString ("ename"));
     rset.close();
     stmt.close();
     conn.close();
}

JDBC/Servlets Connectivity Problems.

Similar Messages

Maybe you are looking for