package javax.servlet.jsp does not exist

[nkkwok]

I have encounter the following error when I compiled the Ex5AddTag.java which I put it under the following path:

C:\jboss-4.0.0\server\default\deploy\jsp.war\WEB-INF\classes

Error message:

Ex5AddTag.java:3: package javax.servlet.jsp does not exist

import javax.servlet.jsp.*;
Ex5AddTag.java:4: package javax.servlet.jsp.tagext does not exist
import javax.servlet.jsp.tagext.*;

Clearly, Java didn't find javax.servlet.jsp.* and import javax.servlet.jsp.tagext.*.

I understand that the javax.servlet package is not part of J2SE Java. I don't know how to get javac to use it and I don't know how to configure it to use include the javax.servlet .jar and the javax.servlet.jsp.tagext in my classpath.

I tried to add the following to my path, but it didn't work too:
C:\jboss-4.0.0\bin;C:\jboss-4.0.0\lib\servlet.jar;

Please advise and thanks in advance!


I checked that I have already have the following .jar files:
javax.servlet.jar
javax.servlet.jsp.jar
servlet.jar

C:\jboss-4.0.0\server\default\lib

My computer environment as shown:

****************
Operating system used: Window professional XP sp1 (English)

--------System >> Environment Variables >> User variables

ANT_HOME: C:\apache-ant-1.6.2
JAVA_Home: c:\Program Files\Java\jdk1.5.0_01
JBOSS_HOME: C:\jboss-4.0.0 Files\Java\jdk1.5.0_01\bin;C:\apache-ant-1.6.2\bin

--------System >> Environment Variables >> System variables
OS Windows_NT
Path: %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem; C:\Program Files\Common Files\Adaptec Shared\System; C:\Program Files\Microsoft SQL Server\80\Tools\Binn\; C:\Program Files\Java\jdk1.5.0_01\bin;C:\jboss-4.0.0\lib\servlet.jar;

PATHEXT:.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH

For your easy reference, the code of Ex5AddTag.java:

package it350;

import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;

public class Ex5AddTag extends TagSupport {

 private int num1 = 0;
 private int num2 = 0;

 public int doStartTag() {
 try {
 JspWriter out = pageContext.getOut();
 out.print("The sum of " +
 num1 + " and " +
 num2 + " is " +
 sum(num1, num2));
 } catch (IOException e) {}
 return (SKIP_BODY);
 }

 public void setNum1(int n1) {
 num1 = n1;
 }

 public void setNum2(int n2) {
 num2 = n2;
 }

 public int sum (int num1, int num2) {
 return num1 + num2;
 }
}

[komo]

I had a similar error when i tried to deploy a simple JSP for JBoss in a Tomcat manner, means to extend the server.xml by a context-tag. The JSP has been transformed to a servlet but this servlet i've been not able to get it compiled automatically by JBoss, but only by hand with an appropriate classpath extension like ...jboss-4.0.1RC2\server\default\lib\javax.servlet.jar ...

The point was that JBoss works obviously different than Tomcat although
JBoss integrates Tomcat. No server.xml adaption is necessary but only a DOS box with

jar cf HelloWorld.war WEB-INF jsp //... and some more directories you need ...

copy HelloWorld.war ...\jboss-4.0.1RC2\server\default\deploy

When JBoss is already started you can see some seconds later the deployment print out in the JBoss-start-window.

My system variables are simply like this:

JAVA_HOME=C:\j2sdk1.4.2_06
CLASSPATH=C:\j2sdk1.4.2_06
JBOSS_HOME=C:\J2EE\jboss-4.0.1RC2

HTH

[nkkwok]

Komo, thank you for your advice.

After I have added the servlet.jar in my classpath, the mentioned problem was solved. My system variables now is set like this:

JAVA_Home: c:\Program Files\Java\jdk1.5.0_01
JBOSS_HOME: C:\jboss-4.0.0

Path=c:\Program Files\Java\jdk1.5.0_01\bin

Classpath=c;\ jboss-4.0.0\bin;C:\jboss-4.0.0\server\default\lib\servlet.jar

nkkwok