Difficulty Installing the MySQL JDBC Driver

I am trying to install mySQL JDBC driver "mysql-connector-java-2.0.14.tar.gz" to link up with the mySQL server on a Windows XP OS.
The error is:
Cannot find database driver classes
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
I have read the USAGE AND INSTALLATION in the README file, but it can not seem to find these drivers still. I added the location to my PATH variable in the environment variables, and set CLASSPATH= ... as well and still can not find them
Paths i added to PATH and CLASSPATH variables
C:\j2sdk1.4.0_01\mysqlconnector.tar
C:\j2sdk1.4.0_01\JDBC
I did both methods it suggested, within the JDBC folder are the com and org folders. Anyone offer some suggestions.
I know some smart person is going to say just use linux, but it is needed for my father and he can barely use MS Windows.
Cheers for any help

Dear Java Newsgroup User
I would like to understand more around the Java and MySQLJDBC Configuration. Because I have some problem trying to install and Testing the MySQL JDBC Connector Driver.
I use Windows XP Professional.
I Downloaded and Intalled Sun One Studio to start learning JAVA and Features. This SDK Package make 3 Packages (directories):
Directory No1 C:\JSDK4\j2sdk1.4.1_02 (JAVA_HOME)
Directory No2 C:\JSDK4\s1studio (Source Examples ...)
Directory No3 C:\Archivos de programa\Java\j2re1.4.1_02 (Java R. Env.)
In the WINDOWS XP PANNEL CONTROL apper Java Plugins Control Pannel also
when I press or click this icon apper a Java Screen where i can see the following Configuration in the Advanced Option:
Java RuntTime Enviroment:
Use Java Plugin Default
JRE 1.4.1_02 in C:\Archivos de programa\Java\j2re1.4.1_02
SDK 1.4.1_02 in C:\JSDK4\j2sdk1.4.1_02
MySQL Driver Confiration and Version:
This is my Un-ziped MySQL JDBC connector Path:
C:\JSDK4\j2sdk1.4.1_02\mysql-connector-java-3.0.8-stable
Into mysql-connector-java-3.0.8-stable directory exist an directory called [testsuite] that have some jar, java and class files.
Testing MySQL JDBC Connecto Driver and Error Message:
When i try to run the BaseTestCase.class file the system give me the following ERROR Message:
C:\JSDK4\j2sdk1.4.1_02\mysql-connector-java-3.0.8-stable\testsuite>java BaseTestCase
Exception in thread "main" java.lang.NoClassDefFoundError: BaseTestCase (
ame: testsuite/BaseTestCase)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.
3)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:250)
at java.net.URLClassLoader.access$100(URLClassLoader.java:54)
at java.net.URLClassLoader$1.run(URLClassLoader.java:193)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:186)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
My Question are the following:
1- What is the meaning of this message error?
2- What i need to do to solve this problem?
3- What is the function specificly of the JRE 1.4.1_02 in C:\Archivos de programa\Java\j2re1.4.1_02 Directory in My JAVA Instalation.
I you need more detail of my instalation please write me and i write back a soon as possible.
Dear Users:
Please Help Me! to continue with the next steps ...
Best Regards and Than's so much for read this message
From Panama City
VanyRon

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MelGohan wrote:
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marcusam wrote:
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>
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How to make MySQL JDBC Driver case-insensitive

Hi,
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+-----------------+----------------+------+-----+----------------+-------+
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+-----------------+----------------+------+-----+----------------+-------+
| code            | char(3)        |      | PRI |                |       |
| name            | varchar(40)    |      | UNI |                |       |
| shortCode       | char(2)        | YES | MUL | NULL           |       |
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}

One of the problem is that oracle's column names are
case insensitive, whereas CODE in mySql is different from code (see example posted below).I doubt that.
SQL standards are rather specific that columns names are case insensitive unless quoted identifiers are used. And presumably you are doing that.
What you are seeing is a difference in drivers not databases.
I would guess that the only way to change the behaviour is to modify your code. If you uppercase everything it should work. Or you could use positional rather than named column extraction.

Mm.mysql JDBC Driver and the WHERE clause

Anybody has succesfully performed a MySQL/JDBC query in a JSP application using more than one variable in the WHERE clause?
It works fine when I run queries with one fixed value assigned to a column and one variable assigned to the other column in the WHERE clause; but when I do it with more than one variable in the WHERE clause, it screws up throwing an error.
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CODE:
<% String sqlStatement = "" ; %>
<% String s_description = "Mexican Style Rice" ; %>
<% String s_status = "available" ; %>
<% java.sql.Statement stmt = con.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE, java.sql.ResultSet.CONCUR_UPDATABLE); %>
<% java.sql.ResultSet rs ; %>
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<% rs.beforeFirst(); %>
<% while (rs.next()) { %>
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I think perhaps this sentence has problems:
<% sqlStatement = "SELECT code, description, status FROM products WHERE products.description =" + s_description + " AND products.status =" + s_status + ";" ;%>
You can
<% sqlStatement = "SELECT code, description, status FROM products WHERE products.description ='" + s_description + "' AND products.status = '" + s_status + "'" ;%>
You perhaps ignore the �� when using String variable s_description and s_status.
Hope this will help you. Good lucky!

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Hi,
At the moment I'm trying to get an example working. The error message I get is:
Unable to get connection, DataSource invalid: "org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'"
The example I tried is http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html.
Configuration:
Wampserver 2.0 (Apache, MySQL, PHP for Windows XP), Tomcat 6.0 and jdk1.6.0_03.
The following files are installed in %CATALINA_HOME%/webabbs/
- Dbtest/test.jsp
- Dbtest/WEB-INF/web.xml
- Dbtest/WEB-INF/lib/standard.jar
- Dbtest/WEB-INF/lib/tomcat-dbcp.jar
- Dbtest/WEB-INF/lib/jstl.jar
Tia,
Abel.

Hi,
I added the jar file containing the requested class to my lib directory. So the current contents of that directory is:
The following files are installed in %CATALINA_HOME%/webabbs/
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- Dbtest/WEB-INF/lib/tomcat-dbcp.jar
- Dbtest/WEB-INF/lib/jstl.jar
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start serving pages GREAT!. I have Mysql working perfectly with PHP on this system. I JUST want to connect with JDBC :)
I've downloaded the MySQL Jdbc Connector/J 3.08 stable installed the .jar file in the $JAVA_HOME/jre/lib/ext as per the README
Now granted I am a little new to JSP. but I have checked over this again and again. used different code. connected as many ways as I can think of and I still get the same result.
Database Error :
No suitable driver
Please Try Some Other Time
So I figure it's a MYSQL issue. no I also went thru and did the Microsot connection to MS SQL 2000 with the same result.
Here's where the drivers are (tried using the other method for installing the MySQL connector as well, and my class path
Y:\j2sdk1.4.0\com\mysql\jdbc\Driver.class
com.mysql.jdbc.Driver.class
Y:\j2sdk1.4.0\org\gjt\mm\mysql\Driver.class
org.gjt.mm.mysql.Driver.class
My classpath is:
.;F:\j2sdk1.4.0\;F:\j2sdk1.4.0\bin\;F:\j2sdk1.4.0\lib\;F:\j2sdk1.4.0\lib\classes\
[ Here's The Enviorment]
Windows 2000 5.00.2195 SP3
MS SQL 2K SP3
Apache Tomcat/4.1.27
j2sdk1.4.0
MySql 3.23.57-nt
mysql Jdbc Connector/J 3.08 stable

<%@ page import="java.sql.*" %>
<%
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ResultSet results;
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     System.out.println(cnfe.getMessage());
try      {
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     System.out.println("connected to mySql DataBase");
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%>

BTW i aslo tried connecting to MicrosoftSQL 2K

<%@ page import="java.sql.*" %>
<%
Connection conn;
ResultSet results;
try      {
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got the exact same results.
Just to show you mysql is Good. with localhost.
mysql -u root -h localhost -p
mysql> use javatest
Database changed
mysql> select * from testdata;
| id | foo | bar |
| 1 | hello | 12345 |
1 row in set (0.00 sec)
mysql>

Nope, it's not a MySQL issue.
I'd recommend NOT putting the JDBC JAR file (or any others, except Sun-sanctioned extensions) in JAVA_HOME/jre/lib/ext.
JDBC JARs belong in TOMCAT_HOME/common/lib or in the WEB-INF/lib directory for your particular app. If you put them in the former, all apps running under Tomcat can have access to them. If you put them in the latter, only your app can see them.
After you've done that, do some reading about JNDI data sources under Tomcat:
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html
That way you can get that connection code out of your JSPs and into the web.xml and <Context>, where it belongs. You'll be able to change data sources without rewriting your pages.
Good luck - MOD

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hello
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1 add following string to my classpath environment of the wndows2000: E:\bea\wlserver6.1\lib\mssqlserver4v65.jar
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public static void main(String argv[]){
try{ Class.forName("weblogic.jdbc.mssqlserver4.Driver");
Connection
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who can help me?thank you!

Hi,
Mail me the jar file as I am using Weblogic 6.1 to my email id [email protected]
Else tell me the site from where u have downloaded and i will do the same.
I will test the same and let you know.
Thanks,
Seetesh

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**** 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 : class not found exception : com.mysql.jdbc.driver in Eclipse Tool

Hi
I have impoted project file in eclipse in new machine using option import from existing workbence . When i stat to debug this project ,
i am getting error as class not found exception : com.mysql.jdbc.driver . my project folder already consist of mysql .jar file in /web appls/web-inf folder.
Application is running successfully in other machine from where i took the application file. As this error appeared I also added jar file into project path as Project ---->properties-- build java path---libraries----add external jar file.
kindly hep me.

Sounds like an eclipse question - not a JDBC one.
But since eclipse is telling you it can't find it then it means it is not in the eclipse path. So you must add it. (The fact that it is somewhere is irrelevant - all that matters is it is not in the class path.)

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.

Using mysql jdbc driver leads to exception

I try to use com.mysql.jdbc.Driver with JDeveloper 9i business components. The following is the code I use to test if mysql driver works with business components:
package test;
import oracle.jbo.*;
import java.util.Hashtable;
import javax.naming.*;
public class Test {
public static void main(String[] args) {
final String amName = "test.TestModule";
final String voName = "test.TesttableView";
final String userName = "some_user";
final String password = "some_password";
final String connStr = "jdbc:mysql://localhost:3306/test";
System.setProperty("jdbc.drivers", "com.mysql.jdbc.Driver");
Hashtable env = new Hashtable(2);
env.put(Context.INITIAL_CONTEXT_FACTORY, JboContext.JBO_CONTEXT_FACTORY);
env.put(JboContext.DEPLOY_PLATFORM, JboContext.PLATFORM_LOCAL);
ApplicationModule appMod = null;
try {
javax.naming.Context ic = new InitialContext(env);
ApplicationModuleHome home = (ApplicationModuleHome)ic.lookup(amName);
appMod = home.create();
java.util.Properties props = new java.util.Properties();
props.put("user",userName);
props.put("password",password);
props.put("defaultRowPrefetch","15");
appMod.getTransaction().connect(connStr, props);
} catch(Exception e) {
e.printStackTrace();
ViewObject vo = appMod.createViewObject("vo", voName);
Row r = vo.first();
r.setAttribute("Testcolumn", "Some text");
System.out.println("vo before AppMod post " + r.getAttribute("Testcolumn"));
try {
appMod.getTransaction().commit();
System.out.println("Commit succeeded.");
} catch (oracle.jbo.JboException e) {
System.out.println("Commit failed. " + e);
r = vo.first();
System.out.println("vo after AppMod commit " + r.getAttribute("Testcolumn"));
Everything works fine until ViewObject.first() is called, then the following exception is thrown:
oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.lang.ClassCastException, msg=com.mysql.jdbc.PreparedStatement
     void oracle.jbo.JboException.<init>(java.lang.Throwable)
          JboException.java:344
     oracle.jbo.Row oracle.jbo.server.ViewRowSetIteratorImpl.first()
          ViewRowSetIteratorImpl.java:1156
     oracle.jbo.Row oracle.jbo.server.ViewRowSetImpl.first()
          ViewRowSetImpl.java:2240
     oracle.jbo.Row oracle.jbo.server.ViewObjectImpl.first()
          ViewObjectImpl.java:4345
     void test.Test.main(java.lang.String[])
          Test.java:32
## Detail 0 ##
java.lang.ClassCastException: com.mysql.jdbc.PreparedStatement
     void oracle.jbo.server.OracleSQLBuilderImpl.doStatementSetRowPrefetch(java.sql.Statement, int)
          OracleSQLBuilderImpl.java:894
     java.sql.PreparedStatement oracle.jbo.server.DBTransactionImpl.createPreparedStatement(java.lang.String, int)
          DBTransactionImpl.java:2695
     java.sql.PreparedStatement oracle.jbo.server.DBTransactionImpl2.createPreparedStatement(java.lang.String, int)
          DBTransactionImpl2.java:418
     java.sql.PreparedStatement oracle.jbo.server.DBTransactionImpl.createReUsePreparedStatement(java.lang.String, int)
          DBTransactionImpl.java:3467
     java.sql.PreparedStatement oracle.jbo.server.ViewObjectImpl.getPreparedStatement(int, boolean[])
          ViewObjectImpl.java:6496
     void oracle.jbo.server.QueryCollection.executeQuery(java.lang.Object[], int)
          QueryCollection.java:483
     void oracle.jbo.server.ViewObjectImpl.executeQueryForCollection(java.lang.Object, java.lang.Object[], int)
          ViewObjectImpl.java:2600
     void oracle.jbo.server.ViewRowSetImpl.execute(boolean, boolean)
          ViewRowSetImpl.java:521
     void oracle.jbo.server.ViewRowSetIteratorImpl.ensureRefreshed()
          ViewRowSetIteratorImpl.java:2197
     oracle.jbo.Row oracle.jbo.server.ViewRowSetIteratorImpl.first()
          ViewRowSetIteratorImpl.java:1141
     oracle.jbo.Row oracle.jbo.server.ViewRowSetImpl.first()
          ViewRowSetImpl.java:2240
     oracle.jbo.Row oracle.jbo.server.ViewObjectImpl.first()
          ViewObjectImpl.java:4345
     void test.Test.main(java.lang.String[])
          Test.java:32
Exception in thread main.
Is there anyone who would be able to help me with this problem?
Thank you in advance!

Use
Class.forName("com.mysql.jdbc.Driver");Is the MySQL JDBC JAR file listed in project path.?

Difficulty Installing the MySQL JDBC Driver

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