Java DB connectivity problems

I need troubleshooting techniques how to deal with database connectivity problems.
I am using netbean6m10, Java6.0_1b6 and my program reads these properties before opening the database.
lsfbvol.db.url="jdbc:derby:/etsdDB/ds8300DB;create=yes"
lsfbvol.db.driver=org.apache.derby.jdbc.EmbeddedDriver
For debugging purposes, I printed the driver to ensure it was read properly and it was.
DB Driver=org.apache.derby.jdbc.EmbeddedDriver
Below is the captured exception. Please advice.
Thanks
Arsi
java.sql.SQLException: No suitable driver found for "jdbc:derby:/etsdDB/ds8300DB;create=yes
at java.sql.DriverManager.getConnection(DriverManager.java:602)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
---SQLException Caught---
SQLState: 08001
Severity: 0
Message: No suitable driver found for "jdbc:derby:/etsdDB/ds8300DB;create=yes
at loadDB.MatchGroup.dbConnect(MatchGroup.java:458)
at loadDB.RxProps.dbCreateTable(RxProps.java:308)
at loadDB.RxProps.init(RxProps.java:122)
at loadDB.RxProps.<init>(RxProps.java:97)
at loadDB.File2DB.<init>(File2DB.java:58)
at ds8300.Main.main(Main.java:33)
Java Result: 1
BUILD SUCCESSFUL (total time: 3 seconds)

Thanks for the response.
This is a working program under MySQL and modified for a good practice to learn the new Java DB included in jdk6. Actually, all I changed was my property file which contained all the properties for URL and Driver for the DB.
My URL was pointing to my working-directory which happend to be my flash-card. I changed it to my C drive but still is having same problem.
About my driver not being loaded. My understanding was under jdk6 there was no need to load the driver for embeded Java DB because was already included into the system.
Not sure what to try next. Please advice.
Thanks. Arsi

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---------------------------------------------------------------------------------------------------------------------------------------------------------------------

Please use CODE tags when posting code. You are losing some of the plus signs of string concatenation to the forum's formatting beast.
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Message was edited by:
efebo_abel2002

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null

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This works perfectly in the Eclipse IDE area that I have but when I run the same program on the Net Beans 3.6 IDE area it gives me a 'not suitable driver' error. To note these are both on the same computer. I would really like to get the Net Beans 3.6 IDE working because that is what I am most familiar with using. If you know of the problem why one IDE area recognizes the driver where the next does not I would sure like to know. Somebody passed the idea that when the 3.6 area is executed there are multiple instances running and it resets the ClassPath(I think they where shooting in the dark but it is a lead none the less). Anyway if anybody has had this problem please enlighten me, Thank-You.
The ClassPath is set to the following:
ClassPath = C:\Program Files\Java\jdk1.5.0_02\lib;C:\unzipped\mysql-connector- java-3.1.7\mysql-connector-java-3.1.7;C:\Program Files
\Java\jdk1.5.0_02\jre\lib\ext;
This is the code:
import java.sql.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class Connect2 {
     public static void main(String[] args) {
          try {
               // The newInstance() call is a work around for some
               // broken Java implementations
               Class.forName("com.mysql.jdbc.Driver");
          } catch (Exception ex) {
               System.out.println("HERE");
          try {
               String url = "jdbc:mysql://localhost/test";
               String username = "root";
               String password = "password";
               Connection conn = DriverManager.getConnection(
                         "jdbc:mysql://localhost/test", "root", "password");
               Statement c = conn.createStatement();
               c.execute("insert into green values('richmond')");
               c.execute("select * from green");
               ResultSet rs = c.getResultSet();
               while (rs.next()) {
                    System.out.println(rs.getString(1));
               // Do something with the Connection
          } catch (SQLException ex) {
               // handle any errors
               System.out.println("SQLException: " + ex.getMessage());
               System.out.println("SQLState: " + ex.getSQLState());
               System.out.println("VendorError: " + ex.getErrorCode());
}

There are some oddities with the DriverManager when it comes to registering drivers taken from a different ClassLoader, though I don't see how that would apply here, unless the IDE itself is loading one of the classes.
There's a facility in DriverManager to enumerate the registered drivers. It might be worth doing that and seeing their class names.

Connection Problem with Interbase6. HELP PLEASE

hi every one
i am having a problem to connect with Interbase6. I am enclosing code & errors. it manage to get the driver but does not connect. I have found that this exception means that jdk is not consistant or their is security problem. But i have tried this code with jdk1.3 and jdk1.22 but having same error. I am not using JBuilder or any other Borland's product. If it is not possible to connect then how to use ODBC to connect to the Interbase.
Code ***********
public class InterbaseTest{
     public static void main (String args[]){
String databaseURL = "jdbc:interbase://localhost/c:/Akram/databases/INTERBASETEST.gdb";
String user = "SYSDBA";
String password = "masterkey";
     try {
     Class.forName ("interbase.interclient.Driver");
     System.out.println("Driver class found");
     }catch (java.lang.ClassNotFoundException e) {
     System.out.println ("InterClient not found in class path");
     System.out.println (e.getMessage ());
     return;
     try {
          System.out.println("making connection");
          java.sql.Connection c = java.sql.DriverManager.getConnection (databaseURL, user, password);
          System.out.println ("Connection established.");
     }catch (java.sql.SQLException e) {
          System.out.println ("Unable to establish a connection through the driver manager.");
          System.out.println("Exception test2: "+e.getMessage());
          return;
     }catch (Exception e){
          System.out.println("Exception123: "+e.getMessage());
************************************* Exceptions I get follows**************************************
making connection
java.lang.VerifyError: (class: interbase/interclient/ErrorKey, method: <clinit> signature: ()V) Expecting to find object/array on stack
     at interbase.interclient.JDBCNet._$125439(JDBCNet.java:92)
     at interbase.interclient.JDBCNet.<init>(JDBCNet.java:74)
     at interbase.interclient.Connection._$45044(Connection.java:317)
     at interbase.interclient.Connection.<init>(Connection.java:285)
     at interbase.interclient.Driver.connect(Driver.java:204)
     at java.sql.DriverManager.getConnection(DriverManager.java:450)
     at java.sql.DriverManager.getConnection(DriverManager.java:130)
     at InterbaseTest.main(InterbaseTest.java:21)
Exception in thread "main" Exit code: 1
There were errors

Interbase Connection Problem solved
There was a bug int the InterclientClient.jar File I have downloaded file from the following site.
http://www.kpi.com.au/interbase/index.jsp
copy this new Interclient.jar file into the directory depends upone the individuals path.
C:\Program Files\InterBase Corp\InterClient.

UDP Connection Problem caused by Trojan

Hi, there is a connection Problem with infected Computers.
20-25% of average User Computers are infected with hijacking
Trojans which making connections to UDP Protocolls difficult.
The new Shockwave Player bundles a Anti-Virus Software -
thats fine.
I hope the udp protcoll could continue cause its much better
than the Flash TCP stuff.
And for realtime games UPD is the first choice -of cause.
I hope Adobe could modify the Flash Communication Server for
the UDP Protocoll and could supply a framework for professional
Network-Code in shockwave. Open source and/or interfaces for Java
and/or Own Servers would empower the promulgation of shockwave
cause i think everybody know that chiefs suffer from stinginess.
The fault is not the developer

Hi
I am sorry to see you are having problems
I suggest you contact the forum mods they should be able to get this problem sorted for you this is a link to them http://bt.custhelp.com/app/contact_email/c/4951
They normally reply by email or phone directly to you within 3 working days they will take personal ownership of your problem until resolved and will keep you informed of progress
They are a UK based BT specialist team who have a good record at getting problems solved
This is a customer to customer self help forum the only BT presence here are the forum moderators
If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

JDBC Connection problem in Oracle 11g

Hello Everyone,
Recently we have upgraded our Oracle server from 9.2 to 11g. Since then our Java program scheduled in a shell script (on the Sun Unix server) is not working
and is giving below error
"java.sql.SQLException: ORA-12154: TNS:could not resolve the connect identifier specified"
What is strange is that our Web application which is on the same server (application server is iPlanets) is able to connect successfully. Also I ran the same program on
my local machine and it is able to connect to the 11g database. It is only on unix server (where the app server resides) that is giving problem. FYI the unix server
does not have Oracle client installed so we are using the below in db.properties file (used by application for connection details).
URL=jdbc:oracle:thin:@59.90.26.156:1521:LDPR
The Web application and the stand alone java program (giving problem) call the same program to db connection and also share the same environment (class folder/library files etc).
Also the program was working perfectly fine with Oracle 9.2. Please suggest the solution as I have tried everything that came to my mind.
Regards,
Sid.

Hi ...
Yeah BPEL connect from the back end rather than using weblogic, but to change it ... we need to change the code from BPEL side to connect from the weblogic JDBC services.

OTNDeptEmpStub example: connection problem

I installed JDEV902 on W2000. No database/no application server: I just want to connect to the webservice.
I did everything (moretimes) according to the OTN Tutorial.
When I run the Class I get this message:
[SOAPException: faultCode=SOAP-ENV:IOException; msg=Connection refused: connect; targetException=java.net.ConnectException: Connection refused: connect]
     void org.apache.soap.SOAPException.<init>(java.lang.String, java.lang.String, java.lang.Throwable)
     void oracle.soap.transport.http.OracleSOAPHTTPConnection.send(java.net.URL, java.lang.String, java.util.Hashtable, org.apache.soap.Envelope, org.apache.soap.encoding.SOAPMappingRegistry, org.apache.soap.rpc.SOAPContext)
     org.apache.soap.rpc.Response org.apache.soap.rpc.Call.invoke(java.net.URL, java.lang.String)
     java.lang.String[] OTNDeptEmpStub.getDeptNoArray()
     void Class1.main(java.lang.String[])
Process exited with exit code 0.
=======================================
Please help!!

Sounds as if you are working with the OC4J-Stand-Alone service (vice connecting to a 9iAS instance). The JDeveloper QuickStart discusses how to set this up.
I had similar problems. The OC4J service needs to be running. There is a batch file that starts the service; look under "\jdev\bin\start_oc4j.bat" (JDeveloper 9.0.3).
A DOS window will stay open. Closing this window kills the OC4J service and will result in a connection problem.
You must manually ensure the service is started before you run your web service consumer.

Connectivity problem

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import java.sql.*;
public class TestDataSource extends Action
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws Exception{
javax.sql.DataSource dataSource;
java.sql.Connection myConnection=null;
try {
dataSource = getDataSource(request);
myConnection = dataSource.getConnection();
Statement stmt=myConnection.createStatement();
ResultSet rst=stmt.executeQuery("select username from test");
System.out.println("******************************************");
System.out.println("********Out Put from TestDataSource ******");
while(rst.next()){
System.out.println("User Name is: " + rst.getString("username"));
System.out.println("******************************************");
rst.close();
stmt.close();
// do what you wish with myConnection
} catch (SQLException sqle) {
getServlet().log("Connection.process", sqle);
} finally {
//enclose this in a finally block to make
//sure the connection is closed
try {
myConnection.close();
} catch (SQLException e) {
getServlet().log("Connection.close", e);
return mapping.findForward("success");
this is the connectivity program of strut with MYSQL. it gives error while
compiling the program. i set strut.jar, servlet.jar. mysqlconnector.jar file before compiling.
it gives this type error.
TestDataSource.java:23: cannot resolve symbol
symbol : method getDataSource (javax.servlet.http.HttpServletRequest)
location: class TestDataSource
dataSource = getDataSource(request);
^
1 error
pls solve my problem

... And I've checked the javax.sql package and
found out that DataSource is an interface, and
not a class.That should not matter.. as getDataSource returns an object of type javax.sql.DataSource.
To the OP
As i see the java API for Action class there is a method getDataSource. But when i tried to run your code I found that the method is not present in the Action class of the struts library. I hope this is some version mismatch of the struts library. As a result your class is not extending the method from the base class.
I found that if you use struts 2.0.8 (I hope you are using it since it is the latest) you will face this problem because in this the lib the Action class does not contain the getDataSource method. But if you use old struts (I checked with 1.2.7 available at http://archive.apache.org/dist/struts/struts-1.2.7/struts-1.2.7-lib.zip) this problem will not occure as in this libraries the Action class contains the getDataSource method. This is a peculiar problem as the newer version has removed the method from the class. This is not correct as I think.
By the way if you use the struts 1.2.7 (available at the above url) then your problem will be solved.
Hope it helps :)
Message was edited by:
diptaPB
Message was edited by:
diptaPB

Java DB connectivity problems

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