servlet exception

"What should I use to open it"?

windows:wordpad or notepad

linux: kedit, gedit, openoffice, ..

"Which one?"

Is there a specific log file for your webapp? If not, probably the catalina-***.out or stdout***.log file, or else the stderr***.log file..

Usually, there is a date associated to the file as well, pick the most recent.

The java stack trace shows you the origination of the error...and sometimes even more useful information (SQL exception indicating bad user/password... or the like)

xiarcela at 2007-7-12 8:48:38 >

Maybe start by searching the file for text matching the method that tries to contact Oracle?

for example..

public void performMyOracleQueryThingamagigger(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException

{

//....

}

search for "performMyOracleQueryThingamagigger"

xiarcela at 2007-7-12 8:48:38 >

ok this is the whole thing

May 8, 2007 11:03:51 PM org.apache.catalina.core.ApplicationContext log

INFO: ContextListener: contextInitialized()

May 8, 2007 11:03:51 PM org.apache.catalina.core.ApplicationContext log

INFO: SessionListener: contextInitialized()

May 8, 2007 11:04:21 PM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet dress threw exception

javax.servlet.ServletException: Servlet execution threw an exception

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:313)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)

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

anya_aaa at 2007-7-12 8:48:39 >

My guess is:

javax.servlet.ServletException: Servlet execution threw an exception

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:313)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

One of your filters isn't configured correctly, or requires an entry in your web.xml or server.xml file that isn't there.

Perhaps you could distill into as short a post as possible.

1. What are you doing, basically.

2. Has tomcat worked prior to this, or are you just setting THAT up?

3. Are you applying some sort of a filter knowingly? If so, which one is that?

xiarcela at 2007-7-21 20:55:03 >

i have it in try and catch

it is big code

public class DressServlet extends HttpServlet

{

private String[][] data = new String[100][4];

public void init(ServletConfig fig) throws ServletException

{

super.init(fig);

}

public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException

{.........................

}

ServletContext context = getServletContext();

RequestDispatcher dispatcher = context.getRequestDispatcher("/empty.htm");

dispatcher.forward(request, response);

try

{

DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());

Connection conn=DriverManager.getConnection ("jdbc:oracle:thin:@127.0.0.1:1522:XE","system","786313");

String first_name = request.getParameter("firstName");

String last_name = request.getParameter("lasttName");

String address = request.getParameter("address");

String country = request.getParameter("country");

String email = request.getParameter("email");

Statement stmt=conn.createStatement();

if(action.equals("insert"))

{

String queryinsert = "INSERT INTO" + "customer"+ ("cust_id" + "," +"cust_first_name" + "," + "cust_last_name" + "," + "cust_address" + ", " + "cust_country" + "," + "cust_email") +" VALUES"+"('" + "custId"+ "',"

+ "firstname" + "',"

+" lasttname "+ "',"

+ "address "+ "',"

+ "country "+ "',"

+ "email" + "')";

}

else if (action.equals("display"))

{

ResultSet result = stmt.executeQuery("SELECT (cust_first_name,cust_last_name,cust_address,cust_country,cust_email) FROMcustomer WHERE (cust_first_name = first_name AND cust_last_name = last_name)");

result.close();

}

stmt.close();

conn.close();

}

catch(Exception e)

{

System.out.println("error"+e);

e.printStackTrace(System.out);

}

String temp="";

Cookie cookie2= new Cookie("address", temp);

cookie2.setMaxAge(24*60*60);

response.addCookie(cookie2);

ServletContext context2 = getServletContext();

RequestDispatcher dispatcher2 = context2.getRequestDispatcher("/confirmpage.jsp");

dispatcher2.forward(request, response);

}

public void chip(String cookieValue)

{.............................

}}

this is practically my whole servlet

anya_aaa at 2007-7-21 20:55:03 >

> Good catch. I am fried just getting her (?) to the

> posting of code stage.

And then there's the usual suspects:

"Don't use instance variables in a servlet."

"Use PreparedStatement instead of that mess of quotes and commas."

"Close your connection in a finally block."

DrClapa at 2007-7-21 20:55:03 >

of course i know that

i wrote my last msg coz yesterday i have been working on my project from 11:00 am till midnight ,and i was dead tired.i started getting problems in the evening and then only i came online.

plz don't write such things when u don't know exactly what the other person is doing.

when did i act like every1 are servants of mine?

i m just trying to get my errors cleared up

anya_aaa at 2007-7-21 20:55:03 >