title: class not found exception Class.forName("com.mysql.jdbc.Driver") in webservice
body: <p>I have a problem and need help in <code>Class.forName("com.mysql.jdbc.Driver")</code> that throw class not found exception when i run webservice from eclipse ,but when I create new java project its run perfectly.</p>
  
  <p>I add the <code>mysql-connector-java-5.1.19-bin.jar</code> in the build path for both projects 
  but I don't know what is the problem in the webservice.</p>
  
  <pre><code>  public String insertOrder(
           int current_id, 
          int table_id) 
          {
              try {
        Class.forName("com.mysql.jdbc.Driver");
        Connection con = 
      DriverManager.getConnection("jdbc:mysql://localhost:3306/myhoteldb", "root", "mypassword");
        PreparedStatement st = 
      con.prepareStatement("insert into orders(orders.current_id,orders.table_id) values(?,?)");
        st.setInt(1, current_id);
        st.setInt(2, table_id);
  
        st.executeUpdate();
        } catch (Exception e) {
        System.out.println(e.getMessage());
        }
        return "record inserted";
        }
      }
  </code></pre>
  
  <p>and this the error log </p>
  
  <pre><code>  java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
  at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
  at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Unknown Source)
  at pkg.MyServices.insertOrder(MyServices.java:124)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  at java.lang.reflect.Method.invoke(Unknown Source)
  at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)
  at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)
  at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
  at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114)
  at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
  at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:173)
  at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:144)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
  at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
  at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
  at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
  at java.lang.Thread.run(Unknown Source)
  </code></pre>