Error connecting to MySQL database using JNDI

Hi,
I'm trying to do a simple connection to a MySQL database using the JNDI look-up
method.
Have tried this with the PointBase database that came with WebLogic and got it
to work successfully.
However got the attached error message when I tried it on MySQL database. I tried
this with both the WebLogic's driver for MySQL and also the one I downloaded from
MySQL (com.mysql.jdbc.Driver), and both failed with the same error message.
Offhand, it doesn't look like the connection pool is failing. Tested it with WebLogic's
"Test Pool" function and it was alright.
Also MySQL database is working properly. Test this by doing simple connection
and retrieval with simple JDBC connections and it works.
Any ideas what else I can check with regards to this problem?
Thanks!
[att1.html]

Hi Joe,
Attached is the config.xml for the domain that I'm working with. There are 3 connection
pools set-up.
The problematic Connection Pools are "MySQLCP" and "My JDBC Connection Pool"
Thanks for your help in this!
Joe Weinstein <[email protected]> wrote:
show us the pool definition, as it is in the config.xml file.
thanks
joe
Everbright wrote:
Hi,
I'm trying to do a simple connection to a MySQL database using theJNDI look-up
method.
Have tried this with the PointBase database that came with WebLogicand got it
to work successfully.
However got the attached error message when I tried it on MySQL database.I tried
this with both the WebLogic's driver for MySQL and also the one I downloadedfrom
MySQL (com.mysql.jdbc.Driver), and both failed with the same errormessage.
Offhand, it doesn't look like the connection pool is failing. Testedit with WebLogic's
"Test Pool" function and it was alright.
Also MySQL database is working properly. Test this by doing simpleconnection
and retrieval with simple JDBC connections and it works.
Any ideas what else I can check with regards to this problem?
Thanks!
Error 500--Internal Server Error
java.sql.SQLException: Cannot obtain connection: driverURL = jdbc:weblogic:pool:MyJDBCConnection Pool, props = {enableTwoPhaseCommit=false, jdbcTxDataSource=true,
connectionPoolID=MyJDBC Connection Pool, dataSourceName=MyJDBC Data
Source}.
Nested Exception: java.lang.RuntimeException: Failed to Generate WrapperClass
     at weblogic.utils.wrapper.WrapperFactory.createWrapper(WrapperFactory.java:141)
     at weblogic.jdbc.wrapper.JDBCWrapperFactory.getWrapper(JDBCWrapperFactory.java:73)
     at weblogic.jdbc.pool.Driver.allocateConnection(Driver.java:242)
     at weblogic.jdbc.pool.Driver.connect(Driver.java:158)
     at weblogic.jdbc.jts.Driver.getNonTxConnection(Driver.java:444)
     at weblogic.jdbc.jts.Driver.connect(Driver.java:138)
     at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:298)
     at jsp_servlet.__index._jspService(__index.java:142)
     at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
     at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1053)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:387)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6310)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
     at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3622)
     at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2569)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
     at weblogic.jdbc.jts.Driver.wrapAndThrowSQLException(Driver.java:395)
     at weblogic.jdbc.jts.Driver.getNonTxConnection(Driver.java:448)
     at weblogic.jdbc.jts.Driver.connect(Driver.java:138)
     at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:298)
     at jsp_servlet.__index._jspService(__index.java:142)
     at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
     at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1053)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:387)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6310)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
     at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3622)
     at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2569)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
[config.xml]

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throws IOException, ServletException
Connection con = null;
PrintWriter out = response.getWriter();
response.setContentType("text/html");
PreparedStatement stmt = null;
ResultSet rs = null;
String userid = request.getParameter("userid");
String password = request.getParameter("password");
try {
/** LOADING THE DRIVER FOR MYSQL DATABASE ***/
Class.forName ("org.gjt.mm.mysql.Driver";
} catch (ClassNotFoundException e) {
e.printStackTrace();
} //End of try-catch 1
try{
/*** CONNECTING TO THE DATABASE USING DATABASE NAME, USERNAME AND PASSWORD */
con = DriverManager.getConnection("jdbc:mysql://localhost:8080/own");
/****** this checks whether the entry for the user is in the database *****/
stmt = con.prepareStatement("SELECT *FROM userinfo WHERE userid = ? AND passwd = ?");
stmt.setString(1,userid);
stmt.setString(2,password);
rs = stmt.executeQuery();
if(!rs.next())
else
/****************** IF THE USER AND PASSWORD ARE VALID *****************/
//} // END OF RS.....
// NEED HTML FOR INVALID USERID SHOWING MESSAGE ...
con.close();
}catch(SQLException esql){
System.out.println(esql.getMessage());
} // End of try-catch 2
} // goGet
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws IOException, ServletException {
doGet(request, response);
} // goPost
} // end logincheck function ...

And i see another thing that confuses me. Your URL connection string is
con = DriverManager.getConnection("jdbc:mysql://localhost:8080/own"); meaning that your database is in your machine and listens in port 8080 for incoming connections. But that is the default port that Tomcat listens! Maybe you should change this line to
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/own");where 3306 is MySQL's default port.
Hope these help.

Not able to connect to remote MySQL database using Connector/J

I have an application that uses a connection pool for database access.
It is initialized with this context.xml entry:
The db server is running on port 3307.
     <Resource name="jdbc/DB" auth="Container"
                    type="javax.sql.DataSource" username="un" password="pw"
                    removeAbandoned="true" removeAbandonedTimeout="60" logAbandoned="true"
                    driverClassName="com.mysql.jdbc.Driver"
                    url="jdbc:mysql://localhost:3307/myDB"
                    maxActive="8" maxIdle="4"/>Now after starting the context, I can see I have a connection to my database using the MySQL Administrator. So I know I am connecting.
The problem is, when I try to query any table in the db, I get this message:
java.sql.SQLException
: Table myDB.TABLE_NAME' doesn't exist
at com.mysql.jdbc.MysqlIO.checkErrorPacket(
MysqlIO.java:2921) ...
I know it does in fact exist because I am looking at it. And the code I am using works perfectly fine as long as it is running on a local db server.
Any ideas?

I know it does in fact exist because I am looking at
it. And the code I am using works perfectly fine as
long as it is running on a local db server.
Any ideas?Yes two.
I am bit unclear about the last thing you said... you are testing with two different servers or two different clients?
Anyway here are the possibilities off the top of my head.
1) Some sort of security issue. Surrounding who and from where users can connect to the database in question.
2) Case sensitivity problem. On Windows MYSQl makes all it's table names lower case only. Then it onlu supports the correct case to access them.
For example
CREATE TABLE TestMe
Can then only be accessed with
SELECT * FROM testme
Not TestMe.
This appears to vary with version but i have seen this issue before.

How to connect mysql database using xml

welcome to all,
here my doubt is how to connect mysql database using xml file, how to integrate xml file and jsp file and how to access data from dabase using jsp file. can any one help me
regards

Short answer: you wouldn't do any of those things. The first two are meaningless and the third is a bad practice. I have no idea what those ideas were supposed to achieve so I have no idea what tutorials I should suggest to you.

Error: OGG-00146 - error 600 - Failed to connect to mysql database

Dear All,
I am replicating Data from MySQL to Oracle.
Version of my MySQL is Server version: 5.5.19 MySQL Enterprise Server - Advanced Edition
Version of Oracle is : Oracle 11gR2
My extract is giving the following error and I am unable to identify the problem:
*2012-12-25 14:18:48 ERROR OGG-00146 Oracle GoldenGate Capture for MySQL, netfors.prm: VAM function VAMInitialize returned unexpected result:*
error 600 - VAM Client Report <CAUSE OF FAILURE : Failed to connect to mysql database WHEN FAILED : While initializing mysql context WHERE FAILED :
MySQLBinLog Reader Module CONTEXT OF FAILURE : No Information Available!>
Following are the contents of my /etc/odbc.ini file
*[netfors]*
Driver = /usr/lib/libmyodbc3.so
Description = Connector/ODBC 3.51 Driver DSN
Server = 10.168.20.226
Port = 6629
User = replication
Password = ******
Database = netfors
Option = 3
Socket = /tmp/mysql_sandbox5519.sock
When i isql -v netfors replication ***** *
it say Connected!
This is my extract:
EXTRACT NETFORS
DBOPTIONS HOST 10.168.20.226, CONNECTIONPORT 6629
SOURCEDB [email protected]:6629, USERID replication, PASSWORD ******
RMTHOST 10.168.20.31, MGRPORT 7809
RMTTRAIL /u01/app/oracle/oradata/GG/dirdat/n1
TRANLOGOPTIONS ALTLOGDEST /root/sandboxes/msb_5_5_19/data/mysql-bin.index
TABLE netfors.syslog;
Extract gets ABENDED
Kindly help on this.
Regards, Imran

Got it solved some how, golden gate was trying to connect with default socket file.
*/tmp/mysql.sock*
while my socket file was
*/tmp/mysql_sandbox5519.sock*
I changed it to default and got rid of the error.
Thanks for the help.
Regards, Imran

I can't connect to MySQL database from The JSP Standard Tag Library

Hi All !
I have a problem, please help me anybody !
I don't connect to MySQL database from jsp page using JSTL tag but from servlet all work correctly. I set my path and put �mysql-connector-java-3.1.13-bin.jar� in ENVIRONMENT WinXP(classpath=C:\Java\jdk1.5.0_10\jre\lib\ext\mysql-connector-java-3.1.13-bin.jar) and in War project folder �WEB-INF/lib� and in [TomcatServer]\common\lib.
I have in folder�WEB-INF/lib� following files:
antlr.jar
commons-beanutils.jar
commons-collections.jar
commons-digester.jar
commons-fileupload.jar
commons-logging.jar
commons-validator.jar
jakarta-oro.jar
jsf-api.jar
jsf-impl.jar
jstl.jar
mysql-connector-java-3.1.13-bin.jar
standard.jar
struts.jar
I'm using:
NetBeans 5.5 Build200610171010 (bundled Tomcat 5.5.17)
Ent.Pack 20061020 Visual Wb Pack 061103
OS WinXP SP2
Java 1.5.0_10
MySQL 5.0.18-nt
1:<%@page contentType="text/html"%>
2:<%@page pageEncoding="UTF-8"%>
8: <%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
9: <%@taglib uri="http://java.sun.com/jstl/sql" prefix="sql"%>
10:
11: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
12: "http://www.w3.org/TR/html4/loose.dtd">
13:
14: <sql:setDataSource var="ds"
15: driver="com.mysql.jdbc.Driver"
16: url="jdbc:mysql://localhost:3306/test"
17: user="root"
18: password="xxxx"/>
19:
20:
21:<sql:query sql="select name, age from People" var="res"
22: dataSource="${ds}"/>
I have received report on mistake when entered code at the top:
�/index.jsp [21;0] According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions�
I used instead of (dataSource="${ds}")->(dataSource="ds") but this did not work.
After build and run I have received
=========================================START=================================
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: /index.jsp(21,0) According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
root cause
org.apache.jasper.JasperException: /index.jsp(21,0) According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:146)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:955)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:710)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Validator.validate(Validator.java:1489)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:166)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.
Apache Tomcat/5.5.17
=======================================END================================
Error: "According to TLD or attribute directive in tag file, attribute dataSource does not accept any expressions" - but according to documentation such parameter possible.
BUT WHEN JOINING With DATABASE FROM SERVLET ALL WORK FINE.
I read this doc - [http://tomcat.apache.org/tomcat-5.5-doc/jndi-datasource-examples-howto.html], this applicable if I Tomcat Admin, but i'am not Admin
I simply user, i.e. I want to place its database on virtual host (Tomcat+(JSP-JSTL)+MySQL).
There is idea how can resolve this problem
Thank you in advance ;)

For all how have similar problem.
Decision instead of these ways
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<%@ taglib prefix="sql" uri="http://java.sun.com/jstl/sql" %>
it is necessary to indicate these
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

Connecting to MySQL Database with Servlet

Hi All,
I want to connect to MySQL Database from servlet.
I am using Tomcat websever 3.3.1, where i have to set classpath of mysql jdbc driver.
I tried by copying mysql jdbc driver in so many directiories of Tomcat server but it is
giving me error like "no specified driver find"
So please send me all the solutions and how to set the classpath to connect to
mysql database.
Thanks

U r correct that so many people are giving me solutions but that are not working for me
I think i not correct in setting the classapath to mysql jdbc driver.
1)I have unjarred correctly and all the classes are present in that.
yes driver class is there in that .
2)Now i am using new version of the mysqljdbc that is 2.0.13
If now any driver after this send me url i will download it and use it
3)I am unable to under stand what is yourcontext in
yourcontext/web-inf/lib?
This is my directory structure.
c:tomcat in this i have
bin
conf
doc
lib
logs
modules
native
webapps
work
in bin there are no subdirectories
in conf i have
auto,jserv,jk,users
in doc i have
appdev,images
sample( in appdev)
etc,lib,src,web(in sample)
images(in sample\web)
in lib i have
apps
common
container(c:\tomcat\lib)
in logs,modules there are no subdirectories
in native (c:\tomcat\native) i have
mod_jk
mod_jserv
in mod_jk i have
apache 1.3
common
iis
jni
netscape
nt_service
in webapps i have (c:tomcat\webapps)
Admin,Examples,root
in Admin i have (c:\tomcat\webapps\admin)
contextadmin
Meta-inf
Test
Web-inf
in web-inf (c:\tomcat\webapps\admin\web-inf)
Classes,lib,script
in classes i have (c:\tomcat\webapps\admin\web-inf\classes)
tadm
in examples (c:\tomcat\webapps\examples) i have
Images,Jsp,Meta-inf,Servlets,Web-inf
in web-inf (c:\tomcat\webapps\examples\web-inf) i have
Classes,jsp
in classed (c:\tomcat\webapps\examplesweb-inf\classes) i have
Cal
Checkbox
Colors
Dates
Error
Examples
Num
Sessions
in jsp (c:\tomcat\webapps\examples\web-inf\jsp) i have
applet
I think this is enough to give correct answer for me .
Thanks

Error connecting to MySQL database using JNDI

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