Re: MySql Connector

Thu, 26 Jul 2007 04:38:29 -0700

No... the exception you posted is it couldn't find the mysql_jsp.class file generated by compiling the jsp file. Do you have another stack trace somewhere you haven't shown us? 

Quoting from the stack trace posted below:

*root cause*

java.lang.ClassNotFoundException: org.apache.jsp.mySql_jsp
     java.net.URLClassLoader$1.run(URLClassLoader.java:200)

--David

Mohammed Zabin wrote:


It's already wrapped man, i just copied the code snippet from within <%%>
marker ;), and for System.out, or out.println, It's still the same problem.
If you looked at the exception you will find ClassNotFoundException at line
66 in the generated servlet, and this occurs withing the try block, so, i
think it's a problem of Connector. But the strange thing is that this
code worked fine on a normal java class???

On 7/26/07, David Smith <[EMAIL PROTECTED]> wrote:

1. This can't be the complete jsp code.  If it is, you need to minimally
wrap it in <%    %> markers to indicate it's raw java code, not
jsp/html.  Additionally your System.out.println() call would end up
going to the JVM's standard output instead of the browser.

2. The listed exception is really secondary to the main problem
occurring whenever the jsp compile fails to generate a .class file.
There has to be an earlier exception detailing the syntax problems with
the jsp.

--David

Mohammed Zabin wrote:

This is my jsp code:
try {
        Class.forName("org.gjt.mm.mysql.Driver");
        String url = "jdbc:mysql://localhost:3306/exam";
        Connection con = DriverManager.getConnection(url,"root",

"exam");

             Statement stmt = con.createStatement();
             ResultSet rs = stmt.executeQuery("Select type from
questions");

             while( rs.next() ) {
    System.out.println( rs.getString("type") );
        }

        } catch( Exception e ) {
      }

and this is what i got:

*exception*

org.apache.jasper.JasperException: org.apache.jasper.JasperException:
Unable to load class for JSP
     org.apache.jasper.servlet.JspServletWrapper.getServlet(

JspServletWrapper.java:154)

     org.apache.jasper.servlet.JspServletWrapper.service(

JspServletWrapper.java:320)

     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)

*root cause*

org.apache.jasper.JasperException: Unable to load class for JSP
     org.apache.jasper.JspCompilationContext.load(

JspCompilationContext.java:600)

     org.apache.jasper.servlet.JspServletWrapper.getServlet(

JspServletWrapper.java:142)

     org.apache.jasper.servlet.JspServletWrapper.service(

JspServletWrapper.java:320)

     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)

*root cause*

java.lang.ClassNotFoundException: org.apache.jsp.mySql_jsp
     java.net.URLClassLoader$1.run(URLClassLoader.java:200)
     java.security.AccessController.doPrivileged(Native Method)
     java.net.URLClassLoader.findClass(URLClassLoader.java:188)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java

:134)

     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java

:66)

     org.apache.jasper.JspCompilationContext.load(

JspCompilationContext.java:598)

     org.apache.jasper.servlet.JspServletWrapper.getServlet(

JspServletWrapper.java:142)

     org.apache.jasper.servlet.JspServletWrapper.service(

JspServletWrapper.java:320)

     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)


Any suggestions, please?

On 7/25/07, Christopher Schultz <[EMAIL PROTECTED]> wrote:


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Mohammed,

Mohammed Zabin wrote:


I have the following error:

org.apache.jasper.JasperException: Unable to compile class for JSP:


Uhh... you have a syntax error in your JSP code. Fix that, then we'll
get back to configuration issues. You didn't give enough information to
help with the JSP syntax error.

- -chris

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