MySQL(JDBC) with JSP error
Hello all,
I'm using MySQL 4.1.1 with JConnector 3.1 or 3.0, and I getting a unexpected result.
Fetching unicode strings with function ResultSet.getString(), returning "????" instead of Hebrew unicode chars ("אבגד").
As in PHP with the same DB, everything is working well.
When trying to use InputStream of the CLOB, or BLOB, the result comes good.
Does I need to declare something inorder to use unicode chars with the JDBC?
I'm connecting in a normal method, so I didn't post any code...
when you start the server, you can specify unicode, something like this:
mysqld --unicodelanguage char set
look into the manu.
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How to connect MySql database with JSP
Dear everyone,
how to connect MySql database with JSP......It's too bad that nobody has ever asked this question before...
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Com.mysql.jdbc.ResultSetImpl@55a338 (error)
I am getting this error the when i want to display the table contents of a database in Mysql..In the code i am using 2 recordset is that creating a problem..and it shows this error the number of times equal to the records present in recordset of a particular query..!!
1. It's just localy - no internet
2. Connection is continous.
3. hmm what is the suitable fashion [ sorry for my ignorance ] I got this:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.from the console after I put in the code this:
public void connector(){
try
String userName = "root";
String password = "";
String url = "jdbc:mysql://localhost/log";
Class.forName ("com.mysql.jdbc.Driver").newInstance ();
conn = DriverManager.getConnection (url, userName, password);
System.out.println ("Database connection established");
System.out.println(conn);
*catch (Exception w)*
*System.err.println ("Cannot connect to database server " +w);*
*// return false;*
}thought is suitable = ) -
Problem with inserting data into mySQL database with jsp
I have a jsp page that collects infromation about a users vehicle and puts the data into a mySQL database. Iv'e been messing around with it for ages & i can't seem to get it to work even though i cannot see anything wrong with the code, which can be seen below.
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<%@ include file="Connections/connection.jsp" %>
<%
// *** Restrict Access To Page: Grant or deny access to this page
String MM_authorizedUsers="";
String MM_authFailedURL="login_form.jsp";
boolean MM_grantAccess=false;
if (session.getValue("MM_Username") != null && !session.getValue("MM_Username").equals("")) {
if (true || (session.getValue("MM_UserAuthorization")=="") ||
(MM_authorizedUsers.indexOf((String)session.getValue("MM_UserAuthorization")) >=0)) {
MM_grantAccess = true;
if (!MM_grantAccess) {
String MM_qsChar = "?";
if (MM_authFailedURL.indexOf("?") >= 0) MM_qsChar = "&";
String MM_referrer = request.getRequestURI();
if (request.getQueryString() != null) MM_referrer = MM_referrer + "?" + request.getQueryString();
MM_authFailedURL = MM_authFailedURL + MM_qsChar + "accessdenied=" + java.net.URLEncoder.encode(MM_referrer);
response.sendRedirect(response.encodeRedirectURL(MM_authFailedURL));
return;
String vehicle_details__registration = null;
if(request.getParameter("txt_registration") != null){ vehicle_details__registration = (String)request.getParameter("txt_registration");}
String vehicle_details__make = null;
if(request.getParameter("txt_make") != null){ vehicle_details__make = (String)request.getParameter("txt_make");}
String vehicle_details__model = null;
if(request.getParameter("txt_model") != null){ vehicle_details__model = (String)request.getParameter("txt_model");}
String vehicle_details__colour = null;
if(request.getParameter("txt_colour") != null){ vehicle_details__colour = (String)request.getParameter("txt_colour");}
String vehicle_details__tax_class = null;
if(request.getParameter("select_tax_class") != null){ vehicle_details__tax_class = (String)request.getParameter("select_tax_class");}
String vehicle_details__chasis_num = null;
if(request.getParameter("chasis_num") != null){ vehicle_details__chasis_num = (String)request.getParameter("chasis_num");}
String vehicle_details__status = null;
if(request.getParameter("radio_status") != null){ vehicle_details__status = (String)request.getParameter("radio_status");}
String owner_details__MMColParam = "1";
if (session.getValue("MM_Username") !=null) {owner_details__MMColParam = (String)session.getValue("MM_Username");}
Driver Drivervehicle_details = (Driver)Class.forName(MM_connection_DRIVER).newInstance();
Connection Connvehicle_details = DriverManager.getConnection(MM_connection_STRING,MM_connection_USERNAME,MM_connection_PASSWORD);
PreparedStatement vehicle_details = Connvehicle_details.prepareStatement("INSERT INTO vehicle_man_db.vehicle_details (registartion, make, model, colour, tax_class, chasis_num) VALUES ('"+ String vehicle_details__registration + "', '"+ String vehicle_details__make + "', '"+ String vehicle_details__model + "', '"+ String vehicle_details__colour + "', '"+ String vehicle_details__tax_class + "', '"+ String vehicle_details__chasis_num + "', '"+ String vehicle_details__status + "')");
vehicle_details.executeUpdate();
%>
<form name="add_vehicle_form" id="add_vehicle_form">
<p>Registration mark:
<input name="txt_registration" type="text" id="txt_registration">
</p>
<p>Make:
<input name="txt_make" type="text" id="txt_make">
</p>
<p>Model:
<input name="txt_model" type="text" id="txt_model">
</p>
<p>Colour:
<input name="txt_colour" type="text" id="txt_colour">
</p>
<p>Tax Class:
<select name="select_tax_class" id="select_tax_class">
<option value="AAA">Band AAA (up to 100g/km)</option>
<option value="AA">Band AA (101 - 120g/km)</option>
<option value="A">Band A (121 - 150g/km)</option>
<option value="B">Band B (151 - 165g/km)</option>
<option value="C">Band C (166 - 185g/km)</option>
<option value="D">Band D (Over 185g/km)</option>
</select>
</p>
<p>Chasis Number:
<input name="txt_chassis_num" type="text" id="txt_chassis_num">
</p>
<p>Status: active:
<input name="radio_status" type="radio" value="1" checked>
off-road
<input name="radio_status" type="radio" value="0">
</p>
<p>
<input type="submit" name="Submit" value="Submit">
</p>
</form>
<%
Connvehicle_details.close();
%>This is the error I am getting from the server
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 3 in the jsp file: /add_vehicle_form.jsp
Generated servlet error:
C:\Servers\Tomcat 5.0\work\Catalina\localhost\Assignment\org\apache\jsp\add_005fvehicle_005fform_jsp.java:113: ')' expected
PreparedStatement vehicle_details = Connvehicle_details.prepareStatement("INSERT INTO vehicle_man_db.vehicle_details (registartion, make, model, colour, tax_class, chasis_num) VALUES ('"+ String vehicle_details__registration + "', '"+ String vehicle_details__make + "', '"+ String vehicle_details__model + "', '"+ String vehicle_details__colour + "', '"+ String vehicle_details__tax_class + "', '"+ String vehicle_details__chasis_num + "', '"+ String vehicle_details__status + "')");
^
1 error
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:332)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:412)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
Any help would be much appreciated.
Thanksuse this ...
PreparedStatement vehicle_details =
Connvehicle_details.prepareStatement("INSERT INTO
vehicle_man_db.vehicle_details (registartion, make,
model, colour, tax_class, chasis_num) VALUES
vehicle_details .setString(1,String
vehicle_details__registration );
vehicle_details setString(2,String
vehicle_details__make );
vehicle_details .setString(3,String
vehicle_details__model );
vehicle_details .setString(4,vehicle_details__colour
vehicle_details .setString(5,String
vehicle_details__tax_class);
vehicle_details .setString(6,String
vehicle_details__chasis_num );
vehicle_details .executeQuery();Even you need a screwing up... what's the point putting that String inside. That's the bloody error. -
Hello,
I tried to run a jsp file that accesses a jdbc database, but I got this error :
exception
org.apache.jasper.JasperException: Impossible de compiler la classe pour la JSP (in english: Unable to complie the class for the JSP)
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:97)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:346)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:414)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
cause m�re
Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:106)
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935)
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
Can some body help ?
ThanksI fixed it by copying the file "tools.jar" in the
directory "common\lib".
Thanks
WebCEOYou shouldn't have to do that.
You installed your JDK in "Program Files". Paths with spaces in them are anathema. I'll bet that's the root cause. Reinstall to a path without spaces in it and you won't have to move the tools.jar into common/lib.
% -
Problem when using JDBC with JSP
Hi,
I am trying to display results after a database query on a JSP page, and then provide the options delete or update one of these records or to add a new one.
What I did was to pass the ResultSet object to the webpage, and then display the result. When the buttons are pressed, I pass this ResultSet to another jsp page where I provide the required functionality. This is then forwarded back to the previous JSP, where the new data is displayed.
However, when the first page is re-displayed, it creates a new connection and i was wondering if there is a way to close the previous connection through the ResultSet?
Also, I wanted to put the ResultSet in a bean, but I think it is causing an error in the web server, saying something like it is not Serializable. Is there any other way to pass the ResultSet around?
Any suggestions on better ways to manage databases though web interfaces would be welcome, or if someone could point me to a good tutorial on this topic!
cheers
AnkurBad idea to be passing ResultSets around. Those are database cursors, a scarce resource.
You should load that data into a data structure, close the ResultSet immediately, and then pass the data structure around in session if you must.
Better yet, have a central servlet that deals with all database calls. Let the JSPs just do display, as they were meant to. - MOD -
hi,
i am new in this topic.
i have some simple questions:
i use windows. i downloaded eclipse wtp, mysql 5.0.41, apache tomcat 6.0.13 and installed them all.
what version of jdbc should i download and what are the steps for a working connection between jsp and mysql?
what is the code that i should copy on the classpath?
where is classpath?
i know it is very boring for you but if you could help i would be so pleased:)
thank you..what version of jdbc should i download JDBC is just available in the JDK.
If you mean the JDBC driver, the Connector/J, just refer to the manfacturer's site.
Here is a link: http://www.mysql.com/products/connector/j/
For Java 1.5 (JDBC 3.0), get the Connector/J 5.0.
For Java 1.6 (JDBC 4.0), get the Connector/J 5.1.
and what are the steps for a working connection between jsp and mysql?
what is the code that i should copy on the classpath?Read the reference manual available at the Connector/J site.
http://dev.mysql.com/doc/refman/5.0/en/connector-j.html
where is classpath?It depends on the running environment. As you're using Eclipse, just rightclick at the project, choose Properties, navigate to Java Build Path, choose tab Libraries and add the JAR to the classpath. -
Problems with jsp-error page in web.xml
Hello everybody, I have a confusing problem concerning the use of jsps as error pages for 404-errors.
I inserted the following lines in my web.xml file:
<error-page>
<error-code>404</error-code>
<location>/personal404.jsp</location>
</error-page>
The problem is: when an 404 occurs, instead of showin the personal404.jsp, the browser tells me that it tries to download a file which it can't (it tries to download the mis-spelled file). When I try to redirect the 404 to a static html-page, as in
<error-page>
<error-code>404</error-code>
<location>/personal404.html</location>
</error-page>
everything works fine.
Please, does anybody have any idea or suggestion, what I am doing wrong?
Thanks in advance,
SebastianHi Ivan,
I tried it, but there wasn't any difference.
I'll try to explain in more detail what happens:
Imagine my application has the following root-path
http://myServerName:port/mainRoot/
When I try the following URL:
http://myServerName:port/mainRoot/pageThatDoesNotExist.jsp, the browser tells me, it tries to download the file pageThatDoesNotExist.jsp from myServerName and that it can't find that file.
The same happens, when I type http://myServerName:port/mainRoot/pathThatDoesNotExist/pageThatDOESExist.jsp, except that the browser tries to download the file pageThatDOESExist.jsp which (again) it can't.
I have located the files 404.jsp and 404.html in the same directory, so I don't think this is a path-related problem, because everything works fine, when I specify the 404.html as the target error page (i.e. the browser displays the 404.html when I type the URLs shown above).
I don't know if I'm making this clear, but maybe you get the idea.
Sebastian -
Hi
I was wondering if anyone could help me by taking out a few minutes of their time to browse through my JSP files and help me to explain why the files will not execute and keep throwing errors.
The types of errors thrown are SQL Exceptions and JavaNullPointer Exceptions, there are approximately 7 files, of which the execptions thrown are similar, so i hope solving the problem in a couple of the files will help me to do understand the errors in the others.
Thanks in advance
My email address is [email protected]; if anyone is interested in hlping me please could you email me.
Thanks again
Preciousthank you for your reply, i have sent you the files via the email address submitted
-
I have a standalone application using Swing. Im converting it to a web / JSP/Servlets application.
Can my JSP acess my database using the same classes it used to or should I configure in my Tomcat a data source and call my database using the jndi name ?
thx in advance,
GiselleAgreed - JSPs are best for presentation.
I have a front controller servlet that delegates to POJOs to do database interactions and then forwards results to JSPs for display. No scriptlet code in my pages, no database interactions, just looping through collections and displaying the results. - MOD -
Unable to run beans with jsp using myeclipse
I have create jsp application with in myeclipse using following process
From the menu i create a J2EE ->WebProject
The default folder name is src which is create automatically in editor
when we create a package it will create under src folder
as i create dbconnection in src folder
The index.jsp file is in WebRoot folder .
I have use the bean dbconnection in index.jsp as described below
<jsp:useBean id="con" scope="session" class="dbconnection.ConnectionManager"></jsp:useBean>
<jsp:useBean id="app" scope="sesion" class="dbconnection.JspApp"></jsp:useBean>
<jsp:setProperty name="con" property="driverClass"
value="com.mysql.jdbc.Driver" />
<jsp:setProperty name="con" property="connectionURL"
value="jdbc:mysql://localhost:3306/guestbook" />
But it generate error and do not show any output There is no errors or warnings in dbconnection folder but i am unable to use it in my index.jsp page
Please help me
Thanks in advanceuse cactus jar files
-
Unable to create : com.mysql.jdbc.Driver error with JDeveloper 10.1.3
Hi all,
I got this error when I tried to execute a simple JSF app. I am using JDeveloper 10.1.3 release edition. Please advice
[Starting OC4J using the following ports: HTTP=8988, RMI=23891, JMS=9227.]
**** Unable to obtain password from principals.xml. Using default.
C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\config>
C:\JDeveloper10g\jdk\bin\javaw.exe -ojvm -classpath C:\JDeveloper10g\j2ee\home\oc4j.jar;C:\JDeveloper10g\jdev\lib\jdev-oc4j-embedded.jar -Xverify:none -DcheckForUpdates=adminClientOnly -Doracle.application.environment=development -Doracle.j2ee.dont.use.memory.archive=true -Doracle.j2ee.http.socket.timeout=500 -Doc4j.jms.usePersistenceLockFiles=false oracle.oc4j.loader.boot.BootStrap -config C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\config\server.xml
[waiting for the server to complete its initialization...]
2006-01-31 21:40:47.062 NOTIFICATION Auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\dms.war...
2006-01-31 21:40:47.093 NOTIFICATION Unjar C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\dms.war in C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\dms
2006-01-31 21:40:47.093 NOTIFICATION Finished auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\dms.war
2006-01-31 21:40:47.156 NOTIFICATION Auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\connectors\datasources\datasources.rar...
2006-01-31 21:40:47.156 NOTIFICATION Unjar C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\connectors\datasources\datasources.rar in C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\connectors\datasources\datasources
2006-01-31 21:40:47.171 NOTIFICATION Finished auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\connectors\datasources\datasources.rar
2006-01-31 21:40:47.218 NOTIFICATION Auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j.ear...
2006-01-31 21:40:47.281 NOTIFICATION Unjar C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j.ear in C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j
2006-01-31 21:40:47.359 NOTIFICATION Finished auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j.ear
2006-01-31 21:40:47.375 NOTIFICATION Auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j\webapp.war...
2006-01-31 21:40:47.375 NOTIFICATION Unjar C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j\webapp.war in C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j\webapp
2006-01-31 21:40:59.296 NOTIFICATION Finished auto-unpacking C:\JDeveloper10g\jdev\system\oracle.j2ee.10.1.3.36.73\embedded-oc4j\applications\bc4j\webapp.war
2006-01-31 21:41:08.421 WARNING J2EE OJR0107 Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
06/01/31 21:41:08 SEVERE: ApplicationStateRunning.initConnector Error occurred initializing connectors. Exception is: Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
Jan 31, 2006 9:41:08 PM com.evermind.server.ApplicationStateRunning initConnector
SEVERE: Error occurred initializing connectors. Exception is: Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
06/01/31 21:41:08 SEVERE: ApplicationStateRunning.initConnector Stack trace: oracle.oc4j.sql.DataSourceException: Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
at com.evermind.server.ApplicationStateRunning.initDataSourceConnectionPool(ApplicationStateRunning.java:2016)
at com.evermind.server.ApplicationStateRunning.initDataSourceConnector(ApplicationStateRunning.java:1961)
at com.evermind.server.ApplicationStateRunning.initConnector(ApplicationStateRunning.java:1220)
at com.evermind.server.ApplicationStateRunning.initConnectors(ApplicationStateRunning.java:356)
at com.evermind.server.ApplicationStateRunning.initializeApplication(ApplicationStateRunning.java:208)
at com.evermind.server.Application.setConfig(Application.java:391)
at com.evermind.server.Application.setConfig(Application.java:309)
at com.evermind.server.ApplicationServer.addApplication(ApplicationServer.java:1771)
at com.evermind.server.ApplicationServer.initializeDeployedApplications(ApplicationServer.java:1532)
at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:939)
at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:113)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.resource.ResourceException: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
at oracle.oc4j.sql.spi.ResourceAdapterImpl.createDataSourceConnectionPool(ResourceAdapterImpl.java:106)
at oracle.oc4j.sql.DataSourceUtils.getDataSourceConnectionPool(DataSourceUtils.java:322)
at com.evermind.server.ApplicationStateRunning.initDataSourceConnectionPool(ApplicationStateRunning.java:1997)
... 11 more
Caused by: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
at oracle.oc4j.sql.config.DataSourceConfigUtils.createConnectionFactory(DataSourceConfigUtils.java:247)
at oracle.oc4j.sql.DataSourceConnectionPoolImpl.<init>(DataSourceConnectionPoolImpl.java:107)
at oracle.oc4j.sql.spi.ResourceAdapterImpl.createDataSourceConnectionPool(ResourceAdapterImpl.java:99)
... 13 more
Caused by: oracle.classloader.util.AnnotatedClassNotFoundException:
Missing class: com.mysql.jdbc.Driver
Dependent class: oracle.oc4j.sql.config.DataSourceConfigUtils
Loader: oc4j:10.1.3
Code-Source: /C:/JDeveloper10g/j2ee/home/lib/oc4j-internal.jar
Configuration: <code-source> in META-INF/boot.xml in C:\JDeveloper10g\j2ee\home\oc4j.jar
This load was initiated at current-workspace-app.root:0.0.0 using the Class.forName() method.
The missing class is not available from any code-source or loader in the system.
at oracle.classloader.PolicyClassLoader.handleClassNotFound(PolicyClassLoader.java:2061)
at oracle.classloader.PolicyClassLoader.internalLoadClass(PolicyClassLoader.java:1665)
at oracle.classloader.PolicyClassLoader.loadClass(PolicyClassLoader.java:1621)
at oracle.classloader.PolicyClassLoader.loadClass(PolicyClassLoader.java:1606)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at oracle.oc4j.sql.config.DataSourceConfigUtils.createConnectionFactory(DataSourceConfigUtils.java:244)
... 15 more
Jan 31, 2006 9:41:08 PM com.evermind.server.ApplicationStateRunning initConnector
SEVERE: Stack trace: oracle.oc4j.sql.DataSourceException: Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
at com.evermind.server.ApplicationStateRunning.initDataSourceConnectionPool(ApplicationStateRunning.java:2016)
at com.evermind.server.ApplicationStateRunning.initDataSourceConnector(ApplicationStateRunning.java:1961)
at com.evermind.server.ApplicationStateRunning.initConnector(ApplicationStateRunning.java:1220)
at com.evermind.server.ApplicationStateRunning.initConnectors(ApplicationStateRunning.java:356)
at com.evermind.server.ApplicationStateRunning.initializeApplication(ApplicationStateRunning.java:208)
at com.evermind.server.Application.setConfig(Application.java:391)
at com.evermind.server.Application.setConfig(Application.java:309)
at com.evermind.server.ApplicationServer.addApplication(ApplicationServer.java:1771)
at com.evermind.server.ApplicationServer.initializeDeployedApplications(ApplicationServer.java:1532)
at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:939)
at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:113)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.resource.ResourceException: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
at oracle.oc4j.sql.spi.ResourceAdapterImpl.createDataSourceConnectionPool(ResourceAdapterImpl.java:106)
at oracle.oc4j.sql.DataSourceUtils.getDataSourceConnectionPool(DataSourceUtils.java:322)
at com.evermind.server.ApplicationStateRunning.initDataSourceConnectionPool(ApplicationStateRunning.java:1997)
... 11 more
Caused by: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
at oracle.oc4j.sql.config.DataSourceConfigUtils.createConnectionFactory(DataSourceConfigUtils.java:247)
at oracle.oc4j.sql.DataSourceConnectionPoolImpl.<init>(DataSourceConnectionPoolImpl.java:107)
at oracle.oc4j.sql.spi.ResourceAdapterImpl.createDataSourceConnectionPool(ResourceAdapterImpl.java:99)
... 13 more
Caused by: oracle.classloader.util.AnnotatedClassNotFoundException:
Missing class: com.mysql.jdbc.Driver
Dependent class: oracle.oc4j.sql.config.DataSourceConfigUtils
Loader: oc4j:10.1.3
Code-Source: /C:/JDeveloper10g/j2ee/home/lib/oc4j-internal.jar
Configuration: <code-source> in META-INF/boot.xml in C:\JDeveloper10g\j2ee\home\oc4j.jar
This load was initiated at current-workspace-app.root:0.0.0 using the Class.forName() method.
The missing class is not available from any code-source or loader in the system.
at oracle.classloader.PolicyClassLoader.handleClassNotFound(PolicyClassLoader.java:2061)
at oracle.classloader.PolicyClassLoader.internalLoadClass(PolicyClassLoader.java:1665)
at oracle.classloader.PolicyClassLoader.loadClass(PolicyClassLoader.java:1621)
at oracle.classloader.PolicyClassLoader.loadClass(PolicyClassLoader.java:1606)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at oracle.oc4j.sql.config.DataSourceConfigUtils.createConnectionFactory(DataSourceConfigUtils.java:244)
... 15 more
06/01/31 21:41:08 WARNING: Application.setConfig Application: current-workspace-app is in failed state as initialization failedjava.lang.InstantiationException: Error occurred initializing connectors. Exception is: Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
Jan 31, 2006 9:41:08 PM com.evermind.server.Application setConfig
WARNING: Application: current-workspace-app is in failed state as initialization failedjava.lang.InstantiationException: Error occurred initializing connectors. Exception is: Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
2006-01-31 21:41:08.531 WARNING J2EE 0JR0013 Exception initializing deployed application: current-workspace-app. Error occurred initializing connectors. Exception is: Exception creating connection pool. Exception: oracle.oc4j.sql.config.DataSourceConfigException: Unable to create : com.mysql.jdbc.Driver
Ready message received from Oc4jNotifier.
Embedded OC4J startup time: 29125 ms.I did what Manu suggested with no success. Alternatively, I registered the driver jar with embedded OC4J preferences > global > libraries. Still does not work. Please, note, that when I run JUnit tests against my BC4J application modules with JDBC URL as connection type, everything works just fine. The problem comes while running the JSF application when the application module is using JDBC DataSource as connection type.
-
Error in Class.forName("com.mysql.jdbc.driver")
Hi forum,
Please help me to solve the issue.
im using the following jsp code for genrating the reports using JASPER REPORTS
the JSP FILE
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ page import="java.io.*"%>
<%@ page import="java.util.*"%>
<%@ page import="java.sql.*"%>
<%@ page import="javax.sql.DataSource"%>
<%@ page import="javax.naming.InitialContext"%>
<%@ page import="net.sf.jasperreports.engine.*"%>
<%@ page import="net.sf.jasperreports.engine.design.JasperDesign"%>
<%@ page import="net.sf.jasperreports.engine.xml.JRXmlLoader"%>
<%@ page import="net.sf.jasperreports.engine.export.*" %>
<%@ page import ="net.sf.jasperreports.engine.*"%>
<%@ page import ="net.sf.jasperreports.engine.JasperFillManager"%>
<%@ page import ="net.sf.jasperreports.engine.JRException"%>
<%@ page import="net.sf.jasperreports.engine.JasperReport"%>
<%@ page import="net.sf.jasperreports.engine.JasperPrint"%>
<html>
<body bgcolor="00ffcc">
<%
try{
Connection con = null;
String url="jdbc:mysql://localhost/customer";
String username = "root";
String password = "cmsadmin";
InputStream input=new FileInputStream(new File("C:/Documents and Settings/user/My Documents/NetBeansProjects/jasperreports/web/helloworld.xml"));
JasperDesign design = JRXmlLoader.load(input);
JasperReport report = JasperCompileManager.compileReport(design);
Map params = new HashMap();
params.put("reportTitle", "helloworld");
params.put("author", "Muthu Kumar");
params.put("startDate", (new java.util.Date()).toString());
params.put("ReportTitle", "PDF JasperReport");
<img class="emoticon" src="images/emoticons/confused.gif" border="0" alt="" />Class.forName("com.mysql.jdbc.Driver");<img class="emoticon" src="images/emoticons/confused.gif" border="0" alt="" /><img src="images/emoticons/confused.gif" border="0" alt="" />
con = DriverManager.getConnection(url,username,password);
JasperPrint print = JasperFillManager.fillReport(report, params, con);
OutputStream output=new FileOutputStream(new File("C:/Documents and Settings/user/My Documents/NetBeansProjects/jasperreports/helloreportworld.pdf"));
JasperExportManager.exportReportToPdfStream(print, output);
// JasperViewer.viewReport(print);
catch(SQLException es) {
out.println(es);
catch(JRException ex){
//ex.printStackTrace();
out.println(ex);
%>
</body>
</html>The error it is saying is in the line Class.forName(....) ;
Please look for the emoctions with question mark
i DOn know what to do.
Please help
Im comparin the below JRXML file as with the above code
<?xml version="1.0"?>
<!DOCTYPE jasperReport
PUBLIC "-//JasperReports//DTD Report Design//EN"
"http://jasperreports.sourceforge.net/dtds/jasperreport.dtd">
<jasperReport name="helloworld">
<parameter name="reportTitle" class="java.lang.String"/>
<parameter name="author" class="java.lang.String"/>
<parameter name="startDate" class="java.lang.String"/>
<queryString>
<![CDATA[SELECT * FROM customer order by UserID ]]>
</queryString>
<field name="UserID" class="java.lang.String"/>
<field name="UserName" class="java.lang.String"/>
<field name="City" class="java.lang.String"/>
<field name="State" class="java.lang.String"/>
<title>
<band height="60">
<textField>
<reportElement x="0" y="10" width="500" height="40"/>
<textElement textAlignment="Center">
<font size="24"/>
</textElement>
<textFieldExpression class="java.lang.String">
<![CDATA[$P{reportTitle}]]>
</textFieldExpression>
</textField>
<textField>
<reportElement x="0" y="40" width="500" height="20"/>
<textElement textAlignment="Center"/>
<textFieldExpression class="java.lang.String">
<![CDATA["Run by: " + $P{author}
+ " on " + $P{startDate}]]>
</textFieldExpression>
</textField>
</band>
</title>
<columnHeader>
<band height="30">
<rectangle>
<reportElement x="0" y="0" width="500" height="25"/>
<graphicElement/>
</rectangle>
<staticText>
<reportElement x="5" y="5" width="50" height="15"/>
<textElement/>
<text><![CDATA[UserID]]></text>
</staticText>
<staticText>
<reportElement x="55" y="5" width="150" height="15"/>
<text><![CDATA[UserName]]></text>
</staticText>
<staticText>
<reportElement x="205" y="5" width="255" height="15"/>
<text><![CDATA[City, State]]></text>
</staticText>
</band>
</columnHeader>
<detail>
<band height="20">
<textField>
<reportElement x="5" y="0" width="50" height="15"/>
<textElement/>
<textFieldExpression class="java.lang.String">
<![CDATA[$F{UserID}]]>
</textFieldExpression>
</textField>
<textField>
<reportElement x="55" y="0" width="150" height="15"/>
<textElement/>
<textFieldExpression class="java.lang.String">
<![CDATA[$F{UserName}]]>
</textFieldExpression>
</textField>
<textField>
<reportElement x="205" y="0" width="255" height="15"/>
<textElement/>
<textFieldExpression class="java.lang.String">
<![CDATA[$F{City} + ", " + $F{State}]]>
</textFieldExpression>
</textField>
</band>
</detail>
</jasperReport>Glass_Fish wrote:
I have set the classpath in the environment variables in the my computer properties.The web container has it's own properties. The "system" classpath means absolutely nothing to it. Read your server's documentation. -
Problem using JDBC driver with JSP
Hi, I am trying to connecto to my mysql server via a JSP page, but it seems that there is a problem with the driver call or something in my configuration that unables me to connect. I have the mysql-connector-java-3.0.7-stable driver.
This is how my classpath looks like:
CLASSPATH=/home/hooper/Sources/mysql-connector-java-4.0.7-stable/lib:/home/hooper/Sources/mysql-connector-java-3.0.7-stable/com:/home/hooper/Sources/mysql-connector-java-3.0.7-stable/mysql-connector-java-3.0.7-stable-bin.jar:/usr/java/j2sdk1.4.1_02:.:/usr/java/j2sdk1.4.1_02/lib/tools.jar:/usr/java/j2sdk1.4.1_02
And this is my JSP page code:
<%@ page language="java" import= "java.sql.*"%>
<%
Connection con = null;
String userName = "hooper";
String password = ""; //No password
String url = "jdbc:mysql://localhost/test";
//Load the Driver class file
Class.forName("com.mysql.jdbc.Driver");
//Make a connection to the MySQL database
con = DriverManager.getConnection (url, userName, password);
out.println ("Database connection established");
if (con != null){
//Close the connection
con.close();
%>
And this is the error I get from Tomcat4.1.18:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: com.mysql.jdbc.Driver
root cause
javax.servlet.ServletException: com.mysql.jdbc.Driver
I hope someone can help me with this.
Thanks,
LuisHi..
Try using this way
String userName = "hooper";
String password = ""; //No password
String url = "jdbc:mysql://localhost:3306/test";
Class.forName("org.gjt.mm.mysql.Driver");
try to download the driver for mysql and add it to your classpath
Hope this works
Regd
Vasi -
<%@ page import = "java.io.*, java.util.*,java.net.URL,java.awt.*,java.lang.*,java.sql.*" %>
<HTML>
<head></head>
<body>
<%
ResultSet rs;
Statement stmt;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/petrofed?user=petrofed&password=petro");
String sql = "SELECT * FROM sample";
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
while (rs.next())
out.println(rs.getString(1));
out.println(rs.getString(2));
// Do something with the Connection
} catch (SQLException ex) {
// handle any errors
out.println("SQLException: " + ex.getMessage());
out.println("SQLState: " + ex.getSQLState());
out.println("VendorError: " + ex.getErrorCode());
catch (ClassNotFoundException cnfex)
out.println("SQLException: " + cnfex.getMessage());
%>
</body>
</html>
Getting following error after uploading it on the Server
SQLException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.security.AccessControlException MESSAGE: access denied (java.net.SocketPermission localhost resolve) STACKTRACE: java.security.AccessControlException: access denied (java.net.SocketPermission localhost resolve) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:269) at java.security.AccessController.checkPermission(AccessController.java:401) at java.lang.SecurityManager.checkPermission(SecurityManager.java:524) at java.lang.SecurityManager.checkConnect(SecurityManager.java:1023) at java.net.InetAddress.getAllByName0(InetAddress.java:1000) at java.net.InetAddress.getAllByName0(InetAddress.java:981) at java.net.InetAddress.getAllByName(InetAddress.java:975) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:133) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:281) at com.mysql.jdbc.Connection.createNewIO(Connection.java:1696) at com.mysql.jdbc.Connection.(Connection.java:408) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:270) at java.sql.DriverManager.getConnection(DriverManager.java:512) at java.sql.DriverManager.getConnection(DriverManager.java:193) at org.apache.jsp.mysqldb2_jsp._jspService(mysqldb2_jsp.java:59) at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at org.apache.jasper.servlet.JspServletWrapper.service(Unknown Source) at org.apache.jasper.servlet.JspServlet.serviceJspFile(Unknown Source) at org.apache.jasper.servlet.JspServlet.service(Unknown Source) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.access$0(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source) at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source) at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source) at org.apache.catalina.core.ContainerBase.invoke(Unknown Source) at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source) at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source) at org.apache.catalina.core.ContainerBase.invoke(Unknown Source) at org.apache.catalina.core.StandardContext.invoke(Unknown Source) at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(Unknown Source) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source) at org.apache.catalina.valves.ErrorReportValve.invoke(Unknown Source) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source) at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source) at org.apache.catalina.core.ContainerBase.invoke(Unknown Source) at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source) at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source) at org.apache.catalina.core.ContainerBase.invoke(Unknown Source) at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619) at java.lang.Thread.run(Thread.java:534) ** END NESTED EXCEPTION ** SQLState: 08S01 VendorError: 0Tomcat is running with a Java security manager that doesn't let your application connect via sockets to applications outside Tomcat. You could perhaps fix this by configuring Tomcat with a security policy that does permit that, but don't ask me how to do that. I would fix the problem by using connection pools that are (I believe) built into Tomcat.
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