SOLVED :- java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Exception :- 

Please provide me a solution to following error when i try to run Java file which has connections to MYSQL database. 

[javax.servlet.ServletException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver] with root cause

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)

at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:126)

at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Unknown Source)

at org.apache.jsp.login_jsp._jspService(login_jsp.java:62)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:383)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)




Comments

  1. Anonymous12 January 2013 at 22:25

    Hi,just add mysql-connector-java-5.1.20-bin.jar to your build path. It works for me.

    ReplyDelete
  2. Piyush Mundada12 January 2013 at 22:28

    Thanks for response. But it is not working for me.

    ReplyDelete
  3. Piyush Mundada12 January 2013 at 22:29

    I found a solution to same. That rather than adding mysql-connector-java-5.1.20-bin (jar) file to java build path. I have explicitly added mysql-connector-java-5.1.20-bin.jar to WEB-INF\lib folder. It is working fine now.

    ReplyDelete
  4. Anonymous22 June 2013 at 00:49

    Piyush Mundada Thank you . your solution is very much correct. It worked for me.

    ReplyDelete
  5. Unknown20 January 2014 at 23:07

    This comment has been removed by the author.

    ReplyDelete
  6. Anonymous10 April 2014 at 23:45

    bt it's nt working for me still shoes class nt found

    ReplyDelete
  7. Anonymous10 April 2014 at 23:47

    i hav added jar file to both places still gives error clas not found

    ReplyDelete
  8. Unknown12 June 2014 at 02:07

    Hi,
    I tried everything - from adding JAR file to WEB-INF/lib to adding it to Window>Preferences>Java>Classpath Variables. Still im getting java.lang.ClassNotFoundException and that huge list of error:
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:126)
    at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:169)
    at org.apache.jsp.NewFile_jsp._jspService(NewFile_jsp.java:65)....


    My piece of scriplet is:

    <%@ page import="java.sql.*" %>
    <%@ page import="java.io.*" %>

    <%
    System.out.println("-------- MySQL JDBC Connection Testing ------------");

    try
    {
    Class.forName("com.mysql.jdbc.driver");
    }
    catch (ClassNotFoundException e)
    {
    //System.out.println("Where is your MySQL JDBC Driver?");
    PrintWriter pw = new PrintWriter(System.out, true);
    pw.println("Driver Connection Failed, yahoo!");
    e.printStackTrace();

    }
    System.out.println("MySQL JDBC Driver Registered!");
    Connection connection = null;
    %>

    ReplyDelete
    Replies
    1. Unknown12 June 2014 at 02:31

      Sorry, i got it running now.
      I used:
      Class.forName("com.mysql.jdbc.driver");
      instead of
      Class.forName("com.mysql.jdbc.Driver");// Capital D

      Thanks

      Delete
    2. Piyush Mundada13 June 2014 at 07:56

      Happy to hear that...☺

      Delete
  9. Anonymous5 March 2015 at 22:48

    I tried all the solutions..it still shows " java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" can u please help?

    ReplyDelete
    Replies
    1. Piyush Mundada6 March 2015 at 08:20

      Can you please post your class and exact issue log.

      Delete
  10. Anonymous12 January 2016 at 00:42

    By keeping WEB-INF/lib/mysql-connector-java-5.1.20-bin.jar like this it works...

    ReplyDelete
  11. Anonymous15 February 2016 at 09:41

    Thank you.My Problem is also solved because of your huge discussion on ClassNotFoundException.
    Really Thank u again..

    ReplyDelete
  12. Unknown22 February 2016 at 04:17

    hi
    i am tried to running the program but is same isuess above mention...javax.servlet.ServletException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver this type error showing in my program....

    ReplyDelete
  13. Unknown22 February 2016 at 04:23

    i am also add the mysql-connector-java-5.1.5-bin but it is not working

    ReplyDelete
    Replies
    1. Piyush Mundada8 March 2016 at 11:00

      Can you please post your class and exact issue log.

      Delete
  14. Unknown8 March 2016 at 08:05

    ya i also have same problem.
    i add connector file in that direcotry,but yet it not working....
    can u give me solution on this pls

    ReplyDelete
    Replies
    1. Piyush Mundada8 March 2016 at 11:00

      Can you please post your class and exact issue log so that I can provide exact solution on same

      Delete
  15. Unknown26 May 2016 at 23:29

    i also have same problem.i do all steps that u tell above, but yet it not working....
    can u give me solution on this pls

    ReplyDelete
    Replies
    1. Unknown26 May 2016 at 23:30

      my script is
      <%@ page import ="java.sql.*" %>
      <%@ page import="java.io.*" %>

      <%
      String userid = request.getParameter("uname");
      String pwd = request.getParameter("pass");
      Class.forName("com.mysql.jdbc.Driver");
      Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/db", "root", "123");
      Statement st = con.createStatement();
      ResultSet rs;
      rs = st.executeQuery("select * from members where uname='" + userid + "' and pass='" + pwd + "'");
      if (rs.next()) {
      session.setAttribute("userid", userid);
      out.println("welcome " + userid);
      out.println("Log out");
      response.sendRedirect("success.jsp");
      } else {
      out.println("Invalid password try again");
      }
      %>

      Delete
    2. Piyush Mundada26 May 2016 at 23:46

      did you add mysql-connector-java-5.1.20-bin (jar) file to java build path ? Rather add explicitly mysql-connector-java-5.1.20-bin.jar to WEB-INF\lib folder. If still issue persist, then please revert back.

      Delete
  16. Anonymous31 December 2017 at 00:28

    I have done all the steps,but it still shows ' java.lang.ClassNotFoundException: com.mysql.jdbc.Driver' exception.

    ReplyDelete
  17. Unknown29 July 2018 at 10:21

    This comment has been removed by the author.

    ReplyDelete

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