Jdbc Jdbc Mysql MysqlConnect

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at ava.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at MysqlConnect.main(MysqlConnect.java:13)

Posted by mohan on Friday, 02.22.08 @ 11:11am | #49387

Hi ,


i have tried for this program, and it is succefully compiled and giving some exception error while running this program.So what i have to do for this .

Posted by venkat on Wednesday, 01.30.08 @ 11:13am | #46569

hello,
I have tried this program. But I got an error like,

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at ava.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at MysqlConnect.main(MysqlConnect.java:13)

can anybody help to run this program.

Posted by subbulakshmiGanesan on Friday, 12.28.07 @ 10:53am | #44016

Hi

I have set the class path as
CLASSPATH = D:\tomcat\common\lib\mysql-connector-java-5.1.5-bin.jar

Posted by sreenivasa y on Thursday, 12.27.07 @ 14:29pm | #43943

this has been sent by ansar khan

Posted by ansar on Friday, 12.14.07 @ 22:33pm | #42307

---------- run ----------
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:290)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:279)
at java.lang.ClassLoader.loadClass(ClassLoader.java:236)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:303)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at connection.main(connection.java:9)

Output completed (0 sec consumed) - Normal Termination

Posted by Dileep on Monday, 10.8.07 @ 11:40am | #32447

Hi,
Iam unable to do the compilation of aservlet page. im getting so many errors on servlet package.like import javax.servlet.http.*;

Posted by shiva on Sunday, 08.19.07 @ 12:05pm | #23719

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: Unable to compile class for JSP

An error occurred at line: 10 in the jsp file: /project/validate.jsp

Generated servlet error:
[javac] Compiling 1 source file

C:\Tomcat 4.1\work\Standalone\localhost\_\project\validate_jsp.java:61: cannot resolve symbol
symbol : variable staff
location: class org.apache.jsp.validate_jsp
rs=st.executeQuery("select * from login where username='"+staff+"'");
^



An error occurred at line: 10 in the jsp file: /project/validate.jsp

Generated servlet error:
Note: C:\Tomcat 4.1\work\Standalone\localhost\_\project\validate_jsp.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
1 error


at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:130)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:340)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:184)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
at java.lang.Thread.run(Thread.java:484)



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

Apache Tomcat/4.1.18

Posted by pattabhi on Saturday, 08.18.07 @ 14:13pm | #23649

hv tried the above example.i got the following error.
MySQL Connect Example.
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at ava.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at MysqlConnect.main(MysqlConnect.java:13)

can anyone help me to check out this problem

Posted by Maniraj on Friday, 07.27.07 @ 11:21am | #22033

i had the same problem and it got resolved after setting the classpath for mysql's jar.

Posted by raja on Sunday, 06.10.07 @ 22:34pm | #18828

i hv tried the above example.i got the following error.
MySQL Connect Example.
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at ava.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at MysqlConnect.main(MysqlConnect.java:13)

can anyone help me to check out this problem.

Posted by Hari on Sunday, 06.3.07 @ 15:25pm | #18080

unreported exception java.lang.InstantiationException;must be caught or declared to be thrown

Class.forName(driver).newInstance

Posted by amisha on Thursday, 05.31.07 @ 13:18pm | #17838

import java.sql.*;
class TestOCIApp {
public static void main(String args[])
throws ClassNotFoundException, SQLException {
Class.forName("oracle.jdbc.driver.OracleDriver");
// or you can use:
// DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver(
));
Connection conn = DriverManager.getConnection(
"jdbc:oracle:oci8:@dssora01.dss","scott","tiger");
Statement stmt = conn.createStatement( );
ResultSet rset = stmt.executeQuery(
"select 'Hello OCI driver tester '||USER||'!' result from dual");
while(rset.next( ))
System.out.println(rset.getString(1));
rset.close( );
stmt.close( );
conn.close( );



hi there
i tried the above program and i got the following error:Exception in thread "main" java.lang.classNotFoundException Oracle.jdbc.driver.
I am using the oracle9i version
also i set the classpath environment variable:
classpath=C:\oracle\ora90\jdbc\lib\classes12.zip;

Posted by nilesh on Friday, 05.4.07 @ 11:39am | #15253

he there,

i thried this,
i got this

"
init:
deps-jar:
Compiling 1 source file to C:\jjjj\test\build\classes
compile-single:
java.lang.NoClassDefFoundError: test/NewClass
Exception in thread "main"
Java Result: 1
debug-single:
BUILD SUCCESSFUL (total time: 1 second)



"


can anybudy help me , what's the problame?

Posted by dhaval on Wednesday, 04.4.07 @ 09:10am | #13309

Hi,
I tried the above example and i got following error.
----------------------------------------------
MySQL Connect Example.
Exception in thread "main" java.lang.NoClassDefFoundError: java/sql/Savepoint
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java
:266)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:172)
at MysqlConnect.main(MysqlConnect.java:14)
Press any key to continue . . .
----------------------------------------------
can anybody help me with this.

Posted by Raj on Sunday, 03.18.07 @ 00:09am | #12028

Hi...

I've tried the above example on my local system
It is throwing Exception:
==================================================
java.sql.SQLException: Unknown initial character set index '48' received from se
rver. Initial client character set can be forced via the 'characterEncoding' pro
perty.
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910)
at com.mysql.jdbc.Connection.configureClientCharacterSet(Connection.java
:2345)
at com.mysql.jdbc.Connection.initializePropsFromServer(Connection.java:3
913)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2683)
at com.mysql.jdbc.Connection.<init>(Connection.java:1531)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java
:266)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at MysqlConnect.main(MysqlConnect.java:14)
===============================================

Can anybody help me out.

Posted by Mahender Reddy on Thursday, 03.8.07 @ 11:20am | #11101