Simple servlet shoed error in tomcat server sql error

import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class submit extends HttpServlet
     //Connection con;
     public void doGet(HttpServletRequest req,HttpServletResponse res) throws IOException,ServletException
     String str1,str2;
     str1=req.getParameter("emailid");
     str2=req.getParameter("comment");
     System.out.println(str1);
     System.out.println(str2);
     res.setContentType("text/html");
     PrintWriter out=res.getWriter();
      try {
         Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        //connection object created using DriverManager class
        //addtodatabase is the name of the database
        Connection connect =DriverManager.getConnection("jdbc:odbc:booksrc");
        //creating prepared statement object pstm so that query can be sent to database
        PreparedStatement pstm=connect.prepareStatement("insert into gbook(emailid, comment) values(?,?)");
        pstm.setString(1,str1);
        pstm.setString(2,str2);
        //execute method to execute the query
        pstm.executeUpdate();
        out.println("<html><h2>Guest Book is Successfully Updated</h2></html>");
         //closing the prepared statement and connection object
         pstm.close();
         connect.close();
       catch(SQLException sqe)
         System.out.println("SQl error");
        catch(ClassNotFoundException cnf)
         System.out.println("Class not found error");
public void doPost(HttpServletRequest req,HttpServletResponse res) throws
ServletException,IOException{
doGet(req,res);
}

How about a little effort and initiative on your part? Did you try Google[1]?
[1] http://www.google.com/search?q=%5BMicrosoft%5D%5Bodbc+manager%5Ddata+source+name+not+found+and+no+default+driver+specified
P.S. You've not specified your DB and I'm pretty sure you've not setup a system DSN
People on the forum help others voluntarily, it's not their job.
Help them help you.
Learn how to ask questions first: http://faq.javaranch.com/java/HowToAskQuestionsOnJavaRanch
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Problem getting simple servlet to run in tomcat

i am trying to get a servlet to run that is explained in wrox Professional JSP second edition. i am using tomcat as the book explains.
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2. in the classes folder i created the directory
com/wrox/projsp/ch03/myfirstwebapp.
3. in the folder myfirstwebapp i have the compiled file
MyFirstServlet.class
4. i made sure the code is exactly as in the book.
5. it states that if i go to
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6. the only way i can get this to work is if i create a web.xml
file and point it to
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http://localhost:8080/ch03/com.wrox.projsp.ch03.myfirstwebapp.MyFirstServlet thus leaving out /servlet in the URL
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I don't know how the book you're using instructed you to setup the server but my web.xml simply has the following in it:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
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<web-app>
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you might want to checkout www.coreservlets.com for more help on setting up tomcat.

Tomcat server

Hi i am new to JAVA..
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How to disable the Apache tomcat server that has got installed in my machine...??????
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If you need to know how to do this then I believe that you should edit the server.xml file in tomcat\conf. The part you are looking for is the http connector tag.

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Have a look at the following programs:
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import javax.servlet.*;
import java.io.*;
import java.sql.*;
public class AuthenticationFilter implements Filter
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     Connection con;
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System.out.println(f.getFilterName() + "Filter Initialized");
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String url = f.getInitParameter("url");
String user = f.getInitParameter("user");
String pwd = f.getInitParameter("password");
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sc = f.getServletContext();
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Statement st = null;
ResultSet rs = null;
String user = request.getParameter("user");
String pwd = request.getParameter("password");
try
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catch (Exception e)
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finally
try
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catch (Exception e)
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public void destroy()
try
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          con.close();
catch (Exception e)
     e.printStackTrace();
*2)_HitCounterFilter__
import javax.servlet.*;
import java.io.*;
public class HitCounterFilter implements Filter
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     int count;
public void init(FilterConfig f)throws ServletException
System.out.println(f.getFilterName() + "Filter Initialized");
sc = f.getServletContext();
public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain)throws ServletException,IOException
chain.doFilter(request,response);
count++;
sc.log("Number of times request came to LoginServlet is " + count);
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*3) LoginServlet*
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
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response.setContentType("text/html");
PrintWriter pw = response.getWriter();
pw.println("<HTML> <BODY BGCOLOR=yellow>");
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pw.println("</BODY>");
pw.println("</HTML>");
pw.close();
web.xml
<web-app>
<filter>
<filter-name>authenticate</filter-name>
<filter-class>AuthenticationFilter</filter-class>
<init-param>
<param-name>driver</param-name>
<param-value>oracle.jdbc.driver.OracleDriver</param-value>
</init-param>
<init-param>
<param-name>url</param-name>
<param-value>jdbc:oracle:thin:@localhost:1521:orcl</param-value>
</init-param>
<init-param>
<param-name>user</param-name>
<param-value>scott</param-value>
</init-param>
<init-param>
<param-name>password</param-name>
<param-value>tiger</param-value>
</init-param>
</filter>
<filter>
<filter-name>hitcount</filter-name>
<filter-class>HitCounterFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>authenticate</filter-name>
<url-pattern>/nit</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>Login</servlet-name>
<servlet-class>LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>/nit</url-pattern>
</servlet-mapping>
</web-app>
Error_
java.sql.SQLException: ORA-00904: "SANDY": invalid identifier
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:189)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:242)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:554)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1478)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:
677)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.jav
a:2371)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStateme
nt.java:2660)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:
777)
at AuthenticationFilter.doFilter(AuthenticationFilter.java:37)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:48
9)
at java.lang.Thread.run(Thread.java:619)
The above error message i am getting in Tomcat server,i am having Oracle 11g V1..My SQL prompt is open and i have a table named "ourusers"...Can anyone kindly gimme the solution for this problem+*
Edited by: sandy on Nov 9, 2010 8:59 AM

java.sql.SQLException: ORA-00904: "SANDY": invalid identifier
Looks like the sql you are submitting is invalid.
Print out a copy of the sql you are trying to run and you will probably get:
SELECT * FROM OURUSERS WHERE usr = Sandy and password = secretThat isn't valid sql. It is missing quotes around the values you are checking.
This is the corrected sql query:
SELECT * FROM OURUSERS WHERE usr = 'Sandy' and password = 'secret'so one solution would be:
String sql = "SELECT * FROM OURUSERS WHERE usr = '" + user + "' and password = '" + pwd + "' ";However that is not optimal. It exposes your code to sql injection attack.
The better way is to use a prepared statement:
String sql = "SELECT * FROM OURUSERS WHERE usr = ? and password =?";
st = con.prepareStatement(sql);
st.setString(1, user);
st.setString(2, password);
rs = st.executeQuery();cheers,
evnafets

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I have put the castor-1.3.1.jar file in plugin folder .Then also same error.I can see the BindXmlDescripto.class file in the jar.
what could be the reason.

You need to put any associated jar files in the WEB-INF/lib directory. That should fix your problem.
The Developers Guide section on "Create a Plugin" describes what goes in the WEB-INF/classes/plugins and what goes in WEB-INF/lib
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Frank
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Edited by: kajbj on Feb 13, 2008 10:25 AM

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Hi Experts,
Initially my File Parser Application was working fine with Tomcat Server. But now it is throwing this error and application is not showing the desired results.
Apr 16, 2010 3:17:14 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.5.0_15\bin;.;C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\Java\jre1.5.0_15\bin\client;C:\Program Files\Java\jre1.5.0_15\bin;D:\Program Files\Documentum\Shared;C:\Program Files\Documentum\Shared;F:\Program Files\Documentum\Shared;F:\Documentum\fulltext\fast40;F:\Documentum\product\5.3\fusion;C:\Program Files\Oracle\jre\1.1.8\bin;F:\\bin;F:\\Apache\Perl\5.00503\bin\mswin32-x86;C:\Perl\site\bin;C:\Perl\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\PuTTY\;C:\Program Files\QuickTime\QTSystem\
Apr 16, 2010 3:17:14 PM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Apr 16, 2010 3:17:14 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 594 ms
Apr 16, 2010 3:17:14 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Apr 16, 2010 3:17:14 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.27
Apr 16, 2010 3:17:14 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Apr 16, 2010 3:17:14 PM org.apache.coyote.http11.Http11BaseProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Apr 16, 2010 3:17:14 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Apr 16, 2010 3:17:14 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/16 config=null
Apr 16, 2010 3:17:14 PM org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
Apr 16, 2010 3:17:14 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 640 ms
Apr 16, 2010 3:17:50 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 7 in the generated java file
Only a type can be imported. com.sun.xml.internal.txw2.Document resolves to a package
An error occurred at line: 8 in the generated java file
Only a type can be imported. com.sun.xml.internal.ws.transport.http.server.EndpointDocInfo resolves to a package
An error occurred at line: 12 in the generated java file
Only a type can be imported. javax.xml.stream.events.EndElement resolves to a package
Stacktrace:
     at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:93)
     at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
     at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:435)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:298)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
     at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
     at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399)
     at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
     at ProcessServlets.doPost(ProcessServlets.java:45)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
     at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
     at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
     at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
     at java.lang.Thread.run(Unknown Source)

/usr/java/apache-tomcat-6.0.16/./GoodLuck does not exist or is not a readable directoryRTFEM.

Simple servlet shoed error in tomcat server sql error

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