Trouble compiling Servlets... simple problem?

PATH: %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\PROGRA~1\ULTRAE~1;C:\j2sdk1.4.0\bin;C:\j2sdkee1.3.1\bin
CLASSPATH: C:\j2sdkee1.3.1\lib\j2ee.jar;C:\j2sdkee1.3.1\lib\j2eetool.jar
Yet for some reason I can't compile anything using the servlet packages. I had been able to compile in the past, but I added a new value to the PATH and CLASSPATH variables to try to get Tomcat4.0.1 to work, and then this morning I ceased to be able to compile. So I went back to my old values and can't compile! (DataServlet.java:3: package javax.servlet does not exist
import javax.servlet.*; )
Please help. Thank you.

Ok, I just wrote this post, closed the command prompt I was trying to compile in, reopened another, and tried to compile again and it worked. Can someone tell me what this is about?

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Trouble compiling servlet example

Hi All, I am trying out an example for servlets and I ran into trouble compiling the the file called "FormProcessingServlet.java" in tutorial located here: http://developer.java.sun.com/developer/onlineTraining/Servlets/Fundamentals/magercises/FormPostingAndProcessing/index.html
The exact problem happens in this line:
isStructure = context.getResourceAsStream(paramStructureFile[0]);
The error says:
FormProcessingServlet.java:127: cannot resolve symbol
symbol : method getResourceAsStream (java.lang.String)
location: interface javax.servlet.ServletContext
isStructure = context.getResourceAsStream(paramStructureFile[0]);
anyone else ran into this problem? How do I fix this? Thanks.

"cannot resolve symbol" means that the JVM can't find a particular class.
Adjust your systems classpath variable to include all the jar files that you use, I also add "." to include files in the current directory I'm working from.

Trouble compiling servlets with J2SE 5

Hello,
I've been using Sun 1 Studio CE, and more recently, Netbeans 3.6, with J2SE 1.4.2. I have some basic swing applets and servlets that I wrote for my business' web site.
I recently downloaded and installed the new software bundle containing Netbeans 4.0 and J2SE 1.5. When I try to compile my servlets, I get a compiler error that packages javax.servlet.* and javax.servlet.http.* do not exist.
I reinstalled J2SE 1.4.2 and Netbeans 3.6 and the servlets compile fine.
Why is JDK 5 not able to find these packages? My understanding is that they're part of the Java Servlet API, which I never explicitly downloaded previously. Is that the piece of the puzzle that I'm missing? Please help!
Thanks

Thanks for your response...
What is interesting is that I never explicitly installed the Servlet API. Out of curiosity, I searched my computer for servlet*.jar and came up with 13 files including:
servlet-2.2.jar
servlet-2.3.jar
servlet-api-2.4.jar
These were located in subdirectories under Netbeans 3.6 and Tomcat 5.0.19. Therefore, I'm assuming that when I downloaded the JDK 1.4.2/Netbeans 3.6 bundle from the Java site, the Servlet API must have been part of the bundle.
****Let me check something...***
I've just done the same search for servlet*.jar on my test PC, which has the Netbeans 4.0/JDK 5 bundle installed. The same files exist, in the same locations(almost the same, anyway; the Tomcat and Netbeans 4 directory structures are a little different).
Both software bundles contain the same files, yet 1.4.2 compiles without any problems or additional configuration. In other words, I reinstalled the old 1.4.2/ Netbeans 3.6 bundle, took my existing source code, and started compiling.
Any ideas why the same isn't true for JDK 5/Netbeans 4? I know there are changes to the way Netbeans 4.0 deals with Class Paths, but I thought that was for the classes I've written. Shouldn't the compiler be able to find the servlet API, since it bundled/installed with everything else?
Thanks

Problem in compiling servlet

hi
i'm trying to compile a simple servlet
my directory structure is as follows
c:\pr1
|
|____src
|
|______chservlet.java
|
|____classes
|
|____etc
|
|______web.xml
c:\Tomcat5.0
|
|____webapps
|
|______ch1
|
|____WEB-INF
|
|____classes
and the list of variables is as follows
TOMCAT_HOME=c:\Tomcat 5.0\bin
JAVA_HOME=c:\jsdk1.4
classpath = %CLASSPATH%;c:\Tomcat 5.0\common\lib\servlet-api.jar
now when i'm trying to compile the servlet by giving the following command
javac -classpath ".;c:\Tomcat5.0\common\lib\servlet-api.ajr" -d classes c:\pr1\src\chservlet.java
i'm getting the error package..
javax.servlet.* doesnt exist
can anybody help me at the earliest
Regards
jaismeen

sorry guys..for starting each time new thread..just registered myself to the site yesterday after facing this problem..so cudnt get familiar with its working..
i have given the commands as follows..
set classpath=c:\Tomcat5.0\common\lib\servlet-api.jar,%classpath%
set path=c:\jsdk1.4\bin;%path%
javac c:\pr1\src\chservlet.java
getting the following errors
C:\>javac c:\pr1\src\chservlet.java
c:\pr1\src\chservlet.java:1: package javax.servlet does not exist
import javax.servlet.*;
^
c:\pr1\src\chservlet.java:2: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
c:\pr1\src\chservlet.java:5: cannot resolve symbol
symbol : class HttpServlet
location: class chservlet
public class chservlet extends HttpServlet
^
c:\pr1\src\chservlet.java:7: cannot resolve symbol
symbol : class HttpServletRequest
location: class chservlet
public void doGet(HttpServletRequest req,HttpServletResponse res) throws IOExcep
tion
^
c:\pr1\src\chservlet.java:7: cannot resolve symbol
symbol : class HttpServletResponse
location: class chservlet
public void doGet(HttpServletRequest req,HttpServletResponse res) throws IOExcep
tion
^
5 errors
was just wondering.ihave windows xp..so does it effect in anyway(it shud not)
and if name of the servlet is given wrong then it shudnt give these set of errors..it shud give kind a"cudnt find the file name"
and i have checked the classpath..servlet-api.jar is present and is in this location
c:\Tomcat 5.0\common\lib
and i had tried giving the command
jar -tvf servlet-api.jar..
it gives the list of classes..which shows..its present in the directory
jdk is present in c:\jsdk1.4
location of servlet is c:\pr1\src\chservlet.java
servlet code is as follows
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class chservlet extends HttpServlet
public void doGet(HttpServletRequest req,HttpServletResponse res) throws IOException
PrintWriter out =res.getWriter();
java.util.Date today= new java.util.Date();
out.println("<html>"+
"<body>"+
"<h1 align=center>HF\'s Chapter1 Servlet<h1>"
+" "+today+"</body>"+"</html>");
even i tried copynig servlet-api.jar in the same directory as the servlet and compiling it..
it gives the same set of errors
am just wondering what cud be the problem.sure..must b very smal..but i m not progressing much
regards

Problem while compiling Servlet

M using Tomcat.
Environment variables :
Variable :::::::::::::::: Values
%TOMCAT_HOME% ::::::::::: C:\Tomcat\bin
CLASSPATH :::::::::::::::: .;C:\jdk 1.4.2\lib;C:\jsdk2.1 \servlet.jar;C:\Tomcat\lib\servlet.jar;
PATH ::::::::::::::::::::: ;C:\jdk 1.4.2\bin
JAVA_HOME :::::::::::::::: C:\jdk 1.4.2
Now problem is that When m trying to compile GreetingServlet.java
problems are:::
GreetingServlet.java:31: cannot resolve symbol
symbol : method Println (java.lang.String)
location: class java.io.PrintWriter
out .Println("<BODY>");
^
GreetingServlet.java:32: cannot resolve symbol
symbol : method Println (java.lang.String)
location: class java.io.PrintWriter
out .Println(""+message +","+name+"");
^
GreetingServlet.java:33: cannot resolve symbol
symbol : method Println (java.lang.String)
location: class java.io.PrintWriter
out .Println(" Thanks ("+email+")");
^
GreetingServlet.java:34: cannot resolve symbol
symbol : method Println (java.lang.String)
location: class java.io.PrintWriter
out .Println(" -The Pro Java Team.");
^
GreetingServlet.java:35: cannot resolve symbol
symbol : method Println (java.lang.String)
location: class java.io.PrintWriter
out .Println("</BODY>");
^
GreetingServlet.java:36: cannot resolve symbol
symbol : method Println (java.lang.String)
location: class java.io.PrintWriter
out .Println("</HTML>");
^
Source Code:
import javax.servlet.* ;
import javax.servlet.http.* ;
import java.io.* ;
import java.util.* ;
public class GreetingServlet extends HttpServlet{
protected void doPost (HttpServletRequest request,
 HttpServletResponse response)
 throws ServletException, IOException {
 String name = request.getParameter ("name");
 String email = request.getParameter ("email");
 String message = null;
 GregorianCalendar calendar = new GregorianCalendar();
 if (calendar.get(Calendar.AM_PM) == Calendar.AM) {
 message =" Good Morning";
 else {
 message = " Good Afternoon";
 response.setContentType("text/html");
 PrintWriter out = response.getWriter();
 out .println("<HTML>");
 out .Println("<BODY>");
 out .Println(""+message +","+name+"");
 out .Println(" Thanks ("+email+")");
 out .Println(" -The Pro Java Team.");
 out .Println("</BODY>");
 out .Println("</HTML>");
 out .close();
Thanks in Advance
Please its an urjent.
Hoping to get the solution soon from cream like you in Programming.

hi
it could be you have caps P.
try:
"println" instead of "Println".

Compiling Servlet problem that uses a JavaBean

I have a servlet that will get data from a JavaBean which is created before in a jsp file. While I trying to compile the servlet I am getting this message:
--------------------Configuration: JDK version 1.3 <Default>--------------------
Command : "C:\jdk1.3\bin\javac.exe" -d "C:\jakarta-tomcat-3.2.1\webapps\ROOT\WEB-INF\classes" C:\jakarta-tomcat-3.2.1\webapps\ROOT\WEB-INF\classes\MyServlet.java
Directory : C:\jakarta-tomcat-3.2.1\webapps\ROOT\WEB-INF\classes
C:\jakarta-tomcat-3.2.1\webapps\ROOT\WEB-INF\classes\TasitKayitGirisi.java:19: cannot resolve symbol
symbol : class SimpleBean
location: class MyPackage.SimpleBean
SimpleBean simpleBean = (SimpleBean) session.getAttribute
^
("simpleBean");
C:\jakarta-tomcat-3.2.1\webapps\ROOT\WEB-INF\classes\MyServlet.java:19: cannot resolve symbol
symbol : class SimpleBean
location: class MyPackage.SimpleBean
SimpleBean simpleBean= (SimpleBean) session.getAttribute("simpleBean");
^
2 errors
Process completed.
Where is the problem. SimpleBean is successfully being initializing in my jsp file. But I couldn't compile my servlet that will get data from that bean. Both my servlet and bean are in the same package. I am using JCreator to compile servlets. I think the problem is the compile string that JCreator uses. Can you help me. Thx in advance.

Hi,
The problem is it is not finding the Bean. Put it in the classpath.
The simplest way is put the class in /WEB-INF/classes/MyPackage folder.

How to install servlet classes in order to compile a simple servlet...

When trying to compile a simple servlet (java file), I get errors having to do with not finding any object of the javax.servlet class. I am using J2SE v.1.4, and from what I know, it does not have built-in support for Servlets-JSP.
Do I need to install myself the servlet classes (downloaded from Sun's site) in order for my servlet to be able to compile and work under tomcat? And if so, where should I put them? Or is there something else I have to do?
Thank you in advance for your assistance!

If you have Tomcat already, the files you require are in:
(Tomcat4)
[TOMCAT_HOME]/common/lib/servlet.jar
or
(Tomcat5)
[TOMCAT_HOME]/common/lib/servlet-api.jar
[TOMCAT_HOME]/common/lib/jsp-api.jar
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I downdloaded the servlet api, I changed the classpath to point to the directory that I extracted to. However, I still cannot compile a simple servlet. I am sure I did not install the servlet api the right way. Can somebody help?
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Hi all
Could anyone help me out this problem, I keep trying to figure it out these days but I still cant find my way.
I cannot compile a simple HelloWorldServlet.java, as it gave me 6 errors:
===========================================
package javax.servlet does not exist
import javax.servlet/*;
^
package javax.servlet.http does not exist
import javax.servlet.http/*;
^
the other 4 errors also pointing to the HttpServlet, HttpServletRequest, HttpServletResponse and ServletException
===========================================
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Steve
Was RH installed on the PC you are using with you logon or
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[\code]
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best regards
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Edited by: vic_sk on Dec 9, 2008 9:29 AM

Ok, looks like it's solved. Just forcing the compiler with -classpath to look for the required class file.

Trouble compiling Servlets... simple problem?

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