No, the same error, You know what David?? I put nothing in web.xml, I am
confused about this issue, when to use web.xml, and it might be the reason
behind the unsuccessfull MySql Connection, I follow the same procedure I
followed to configure Oracle DBCP, I think it must work for MySql, right?

On 7/24/07, David Smith <dns4@(protected):
>
> Try this variant of your code:
>
> Context initContext = new InitialContext();
> DataSource ds =
> (DataSource)initContext.lookup("java:comp/env/jdbc/TestMySql");
> Connection conn = ds.getConnection();
>
> out.println("Connection Established");
>
> Essentially when you lookup java:comp/env/jdbc/TestMySql, that's the
> full JNDI path to the DataSource and returns a DataSource type object,
> not a Context type object.
>
> --David
>
> Mohammed Zabin wrote:
>
> > Ok thank you, I did the following as you have stated:
> >
> > 1. in server.xml:
> > <Resource name="jdbc/TestMySql" auth="Container"
> > type="javax.sql.DataSource"
> >             maxActive="100" maxIdle="30" maxWait="10000"
> >             username="root" password="exam" driverClassName="
> > com.mysql.jdbc.Driver"
> >             url="jdbc:mysql://localhost:3306/exam"/>
> > 2. in context.xml
> > <ResourceLink global="jdbc/TestMySql" name="jdbc/TestMySql" type="
> > javax.sql.DataSource"/>
> >
> > 3. in my test page:
> > Context initContext = new InitialContext();
> > Context envContext =
> > (Context)initContext.lookup("java:comp/env/jdbc/TestMySql");
> > DataSource ds = (DataSource)envContext.lookup("jdbc/TestMySql");
> > Connection conn = ds.getConnection();
> >
> > out.println("Connection Established");
> > And i put nothing in web.xml, I have the following error:
> >
> > org.apache.jasper.JasperException: Unable to compile class for JSP:
> >
> >
> >
> > Stacktrace:
> >   org.apache.jasper.compiler.DefaultErrorHandler.javacError(
> DefaultErrorHandler.java:85)
> >
> >   org.apache.jasper.compiler.ErrorDispatcher.javacError(
> ErrorDispatcher.java:330)
> >
> >   org.apache.jasper.compiler.JDTCompiler.generateClass(
> JDTCompiler.java:415)
> >
> >   org.apache.jasper.compiler.Compiler.compile (Compiler.java:308)
> >   org.apache.jasper.compiler.Compiler.compile (Compiler.java:286)
> >   org.apache.jasper.compiler.Compiler.compile (Compiler.java:273)
> >   org.apache.jasper.JspCompilationContext.compile(
> JspCompilationContext.java:566)
> >
> >   org.apache.jasper.servlet.JspServletWrapper.service(
> JspServletWrapper.java:308)
> >
> >   org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java
> :320)
> >
> >   org.apache.jasper.servlet.JspServlet.service (JspServlet.java:266)
> >   javax.servlet.http.HttpServlet.service (HttpServlet.java:803)
> >
> >
> >
> > On 7/23/07, David Smith <dns4@(protected):
> >
> >>
> >> A few things to consider:
> >>
> >> 1. Either place your Resource definition in server.xml as a
> >> GlobalResource *OR* in your webapp's context.xml file.
> >>
> >> 2. If you have the Resource defined in the GlobalResources, that's the
> >> only time you need to use a ResourceLink element in context.xml.
> >>
> >> 3. Drop the autoReconnect parameter in your mysql URL. It has it's
> >> uses, but not in a pooled environment.
> >>
> >> 4. You should probably be attempting to use the path
> >> java:comp/env/jdbc/TestMySQL (note the lack of a '/' before comp) as
> >> described in the JNDI howto on tomcat's website. I think I saw you
> >> using java:/comp/env/jdbc/TestMySQL in one of your posts.
> >>
> >> 5. Please post relevant messages from your logs if this isn't working.
> >>
> >> --David
> >>
> >> Mohammed Zabin wrote:
> >>
> >> > Would you please be more specific? which file you mean? I have
> created
> >> > Oracel connection Pool as the stated way above, and it's worked fine,
> >> > shall
> >> > i put resource defeninitoin in context.xml only?
> >> >
> >> > On 7/22/07, Pid <p@(protected):
> >> >
> >> >>
> >> >> You only need one resource definition.
> >> >> You only need a resource link definition if your resource is a
> global
> >> >> one.
> >> >>
> >> >> Simplify your configuration and then post the error message from the
> >> >> logs so we can see Tomcat says is wrong.
> >> >>
> >> >> p
> >> >>
> >> >>
> >> >> Mohammed Zabin wrote:
> >> >> > Hi All
> >> >> >
> >> >> > I have confiured oracle connection pool on my tomacat 6, and it
> >> worked
> >> >> > fine.
> >> >> > When i came to configure MySql, I repeated the same steps for
> >> Oracle
> >> >> > databse, with considering the specfication of MySql database. But
> >> it's
> >> >> > didn't work. Any Help please about configuring MySql,
> >> >> > I downloaded MySql connector from mysql website and place it in
> >> >> > CATALINA_HOME/lib directory, and i put the following:
> >> >> >
> >> >> > 1. in server.xml file:
> >> >> > <Resource name="jdbc/TestMySql" auth="Container"
> >> >> > type="javax.sql.DataSource"
> >> >> >             maxActive="100" maxIdle="30" maxWait="10000"
> >> >> >             username="*" password="*" driverClassName="
> >> >> > com.mysql.jdbc.Driver"
> >> >> >
> >> >> > url="jdbc:mysql://localhost:3306/exam?autoReconnect=true"/>
> >> >> >
> >> >> > 2. in web.xml file
> >> >> > <resource-ref>
> >> >> >    <description>Oracle Datasource example</description>
> >> >> >    <res-ref-name>jdbc/TestMySql</res-ref-name>
> >> >> >    <res-type>javax.sql.DataSource</res-type>
> >> >> >    <res-auth>Container</res-auth>
> >> >> > </resource-ref>
> >> >> >
> >> >> > 3. in context.xml file (on server's context.xml file):
> >> >> > <Resource name="jdbc/TestMySql" auth="Container"
> >> >> > type="javax.sql.DataSource"
> >> >> >             maxActive="100" maxIdle="30" maxWait="10000"
> >> >> >             username="*" password="*" driverClassName="
> >> >> > com.mysql.jdbc.Driver"
> >> >> >             url="jdbc:mysql://localhost:3306/exam"/>
> >> >> >
> >> >> > 4. in cotext.xml file ( In my web application's context.xml file):
> >> >> > <ResourceLink global="jdbc/TestMySql" name="jdbc/TestMySql" type="
> >> >> > javax.sql.DataSource"/>
> >> >> >
> >> >> > Any Help please?
> >> >> >
> >> >>
> >> >>
> >> >>
> >> >
> >>
> >>
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> >>
> >>
> >
>
>
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