INSTALLING SERVLET API

How do I install the servlet api?

The servlet api gets installed with any web server that you install. For example if you are installing Jeeves(Java Web Server) you will find a file called servlet.jar which contains all the servlet classes. The path is ./JavaWebServer2.0/lib/servlet.jar.
Hope that helps.
Regards
Jaydeep

Similar Messages

I need to install servlet-api.jar in the libext folder.

Hi I am doing a tutorial on struts 2.0.11.
i need to install servlet-api.jar in the libext folder which I have created inside WEB-INF
Now I have downloaded servlet.api which is in the zip form.
When I extract the files. Its giving me two folders
1. javax
2. META-INF
Inside javax there is a folder called servlet. Inside servlet folder there are
a) bunch of call files
b) http folder
c) resources folder
Inside http folder there are
a) class files
b) properties files
Inside the resources folder there are
a) dtd files
b) xsd files
Inside the META-INF folder there is the manifest.mf file
I just need servlet-api.jar
I think that I have extracted the contents of servlet-api.jar by using the extract feature of winzip.
Do you think that by just changing the extension of the file from servlet-api.zip to servlet-api.jar it will do the trick or do i need to do something else.
Please guide

pksingh79 wrote:
Hi ^^,
your replies were very helpful. I did try to check the lib folder of the webserver and there was not servlet-api.jar. However I downloaded a dummy project and it did have servlet-api.jar in it, so I am ok for now.
thanks and regards,
PrashantYou should not be doing that. Always use the one from the application server which you're going to use. Otherwise you will possibly get in runtime trouble due to version differences.
The actual location and filename of the servlet API might differ per application server implementation. If it was for example Tomcat 6, it is the servlet-api.jar in the /lib directory. If it was for example Glassfish (the current release), then it is the javaee.jar in the /lib directory.

Installing Servlets API

How do i do this, i've got the download with all the classes but i can't find and instructions anywhere, i assume i have to install it into the jdk directory but where in it??
i've tried the bin directory and it doesn't like that ....
ideas?

Hi, ashcarrot,
There'r different implementations and versions of Servlets. The J2EE Reference Implementation includes the Tomcat implementation of Servlets (c below), and J2SE does not include Servlet technology.
I assume u have installed the standard edition SDK/JDK. This is the download page from Sun for Servlet technology:
http://java.sun.com/products/servlet/download.html
The Tomcat 4.0.4 link is no longer valid and u could go to the Tomcat homepage to download the latest Tomcat 4.1.12 and find detailed information on installation:
http://jakarta.apache.org/tomcat/index.html
Jack

How to insert the new Servlet Api Class files?

Hi,
I need to know how do I add the Servlet Api Class to my java directory
after i download it from the net? Thanks for your help in advance!

niceguyme,
If you downloaded the J2EE 1.3.1 API and installed it to (for example) c:\j2ee131, then what you need to add to your class path is:
c:\j2ee131\lib\j2ee.jar
I also add c:\j2ee131\lib\ejb10deployment.jar to the classpath, but it is not necessary.
there are several ways to add these to your classpath. It depends on what Operating System you are using. On windows 98 type OS, you can edit the autoexec.bat and add these directly to your already existing classpath. Windows NT,2000, and XP: you can add them to the system environment variables classpath. Hopefully you know how to do this on your machine. What I like to do on the windows machine is create a batch file that will start it from within a command prompt. I do this because there are times when I need to compile my code using different versions of the Java api. I am enclosing an example of one for J2se1.4.1 and j2ee1.3.1.
contents of java141.bat
@ECHO OFF
ECHO JDK 1.4.1 and J2EE 1.3.1 are current versions
set HOLD_CP = %CLASSPATH%
set HOLD_PATH = %PATH%
set CLASSPATH=.
set CLASSPATH=%CLASSPATH%;e:\jdk14\jre\lib\rt.jar
set CLASSPATH=%CLASSPATH%;e:\jdk14\lib\dt.jar
set CLASSPATH=%CLASSPATH%;e:\jdk14\lib\tools.jar
set CLASSPATH=%CLASSPATH%;e:\jdk14\lib\htmlconverter.jar
rem **** J2EE STUFF ****
set CLASSPATH=%CLASSPATH%;e:\j2ee131\lib\j2ee.jar
set CLASSPATH=%CLASSPATH%;e:\j2ee131\lib\ejb10deployment.jar
set CLASSPATH=%CLASSPATH%;%HOLD_CP%
set PATH=e:\jdk14\bin
set PATH=%PATH%;"C:\Program Files\TextPad 4"
set PATH=%PATH%;c:\windows\command
set PATH=%PATH%;%HOLD_PATH%I hope this helps.
TJJ

How to use the servlet api

I can't compile servlet code because it doesn't recognize the http... classes.
I downloaded the servlet api but don't know what to do with it (unziped it but no installation!)
please help

I can't compile servlet code because it doesn't
recognize the http... classes.
I downloaded the servlet api but don't know what to do
with it (unziped it but no installation!)
please helpI am having the same problem... i am running windows 95 (unfortunately) and have installed the jsdk1.3.
These are my autoexec.bat entries
SET PATH=c:\jdk1.3\bin
SET JAVA_HOME=C:\jdk1.3
set classpath=c:\jdk1.3\lib;c:\jdk1.3\jre\lib\ext\servlet.jar%classpath%
I am still not able to compile a servlet program though.
Any ideas?
Much appreciated!!!!
-Charlie

Installing Tomcat API's - help!

I want to write Java Servlets for uploading to my webserver, but I can't find any documentation on how to install the Servlet API! I don't need a server, just the API's required to compile servlets. My questions are:
1) How can I install the API's so I can compile servlets
2) What do I need to do to get a servlet working on my webhost (they say they support servlets)

Ok, I've got the servlet compiling now - what do I need to do to get it to run on my hosts server?

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
This file needs to be added to your classpath when compiling a servlet.

Installing JExcel API

Hello Everybody,
I've posted some messages before about using JExcel API.
Will, Finally it worked with me, and this is how it��s done; I just thought it will be helpful to be archived
First: Download Andy Khan��s JExcel API from (Free JExcel API) :
http://www.andykhan.com/
Next: extract the zipped file to the C:\ drive (or any other drive)
e.g. C:\jexcelapi
Now you need to set the CLASSPATH to have the Jar file
*(Windows users)* Go to: Control Panel �� System �� Environment Variables
If you don��t yet have a system variable called CLASSPATH, create a new one and add the following path to it (including the dot and the semicolon)
.;C:\jexcelapi\jxl.jar
Then set JAVA_HOME to include your JDK path :
e.g. C:\Program Files\Java\jdk1.5.0_01
Assigning CLASSPATH Using CMD (Dos):
C:\jexcelapi> set CLASSPATH=.;C:\jexcelapi\jxl.jar
Now you are done.
To run the Demo provided with the API
Type the following lines in the CMD window:
C:\jexcelapi\src>javac jxl/demo/Demo.java //compile
C:\jexcelapi\src>java jxl.demo.Demo // run
Jxl.demo is the package provided; you need to add it to each program you create as the first line of the code
package jxl.demo; Regards,
MOE

The servlet api gets installed with any web server that you install. For example if you are installing Jeeves(Java Web Server) you will find a file called servlet.jar which contains all the servlet classes. The path is ./JavaWebServer2.0/lib/servlet.jar.
Hope that helps.
Regards
Jaydeep

Configuring Servlet API 2.2

Hi,
Is it possible to configure Servlet API 2.2 on portal, or is it not recommended ? I need to install a forum on the oracle http server that use Servlet API 2.2.
Bye bye

Hi,
Is it possible to configure Servlet API 2.2 on portal, or is it not recommended ? I need to install a forum on the oracle http server that use Servlet API 2.2.
Bye bye

Error while installing DI API (32 bit) for SBO 9.0 PL 05

Dear Experts ,
I'm trying to install version 9.0 (32 bit) on my machine (windows 7 64 bit) . Everything is installed successfully except DIAPI . I'm not able to install the DI API. I try to uninstall / install many times but without luck . Cleared the SAP folder, temp folder but still when it comes to DI API installation it just failed.
Any help would be much appreciated .
Thanks in advance.

Hi Nagarajan,
Thanks for your prompt reply. The installation setup is on my local machine and i have the local admin rights on machine machine. And I don't have any problem in installing other components including server tools, server and client etc.
Friday I changed my computer name keeping SBO 9.0 instructions in mind (not to include any special character in computer name) and then I uninstall sap 8.82 from control panel , everything related to SAP was removed. Then I try to install SAP 9.0 PL 05 .
Server tools -- > installed
Server -- >Installed
Client -- > installed
SDK -- > Installed
DI aPI (32 but ) -- > Error -- > Another version is already installed .
I looked in control panel again -- > nothing there.
Then i again uninstall everything (for V9.0) -- > delete sap folder from program files (x86) restart my system --> again same error regarding DI API.
This error was showing me the registry value so I search the registry and found there that DIAPI related version 8 is still there .
So I took registry backup and try to rename registry key and value but with no luck . Still i was not able to install DI API
So today morning I delete the all the references from registry related to that value (the one i was getting showing Another version is already installed). and I start getting this error i.e. the network related error which is 1316.
I restore the registry backup to Friday's backup and then again try to install but I'm getting 1316 error constantly.
Try to clean the registry and fix the registry errors with CC cleaner but nothing is happened still stuck with 1316 error.
Regards

IllegalStateException: strict servlet API: cannot call getWriter()

I am getting an exception in Weblogic when I am trying to display a pdf file in a web page.
java.lang.IllegalStateException: strict servlet API: cannot call getWriter() after getOutputStream()
I am using the following code code
ByteArrayOutputStream baos;
ServletOutputStream out = response.getOutputStream();
baos.writeTo(out);
I have seen this error in so many discussion forum and there is no proper solution for this error.
I am able to see the pdf page even with this exception. But I want to get rid of this exception also from Weblogic.

I just did a quick (and dirty!) test with the following to display a jpg image and it worked for me without any trace of an exception:
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("image/jpg");
        File f = new File("/Users/me/Desktop/IMG_0032.JPG");
        byte[] bits = new byte[(int) f.length()];
        FileInputStream fos = new FileInputStream(f);
        fos.read(bits);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        baos.write(bits, 0, bits.length);
        baos.writeTo(response.getOutputStream());
        baos.close();
        fos.close();
    }Note that there is no call anywhere to response.getWriter() in that.
I'd guess the exception is directing you at what the problem is, at least as the server is seeing it -- somewhere in the execution of the request path there would appear to be call to response.getWriter() occurring after a call to response.getOutputStream() has been called, which is not permitted on WLS according to the error message.
Do you use filters on this app? If response.getWriter() has been called on the same response object in a post request filter phase, that would be on the same call path with the same response object and would result in the exception.
-steve-

Setting session timeout in servlet API 2.0 - based JSP (Apache/JServ)

I'm using Apache/JServ (servlet API 2.0) to run JSPs. At present, a session becomes invalid after 30 minutes of inactivity. How can I increase or decrease this time?
Thanks.

You can set by using this command in JSP or servlet
session.setMaxInactiveInterval(1800);
replace 1800 (this is in seconds) with the number you want
Suresh

SAP Netweaver 7 - Supported Servlet API version?

For SAP Netweaver 7 platform, please let me know the supported Servlet API version?
Specifically, is Servlet API 2.4 supported?

Hi,
It isn't supported by 7.0, the version of 7.0 is 2.3 (JEE 3)
Best regards

Strict servlet API: cannot call getOutputStream() after getWriter()

i have an applet which will communicate with a servet , but got following error in the servlet
java.lang.IllegalStateException: strict servlet API: cannot call getOutputStream() after getWriter()
at weblogic.servlet.internal.ServletResponseImpl.getOutputStream(ServletResponseImpl.java:280)
at oracle.osl.lt.web.servlets.AudioServlet._processGetPlayList(AudioServlet.java:235)
at oracle.osl.lt.web.servlets.AudioServlet.doPost(AudioServlet.java:91)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.security.wls.filter.SSOSessionSynchronizationFilter.doFilter(SSOSessionSynchronizationFilter.java:276)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
SUBSYSTEM = HTTP USERID = <WLS Kernel> SEVERITY = Error THREAD = [ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)' MSGID = BEA-101020 MACHINE = p1dvosl02 TXID = CONTEXTID = TIMESTAMP = 1318836952580
WatchAlarmType: AutomaticReset
WatchAlarmResetPeriod: 30000
>
*below _processGetPlayList() is called by doPost() of the servlet.*
seems the exception is thrown due to response.getOutputStream()?
any idea? thanks!!
private void _processGetPlayList(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
try {
ObjectOutputStream objectOut =
new ObjectOutputStream(new BufferedOutputStream(response.getOutputStream()));
try {
RichDataDTOExt richData = _getRichData(request);
if (richData == null) {
Log.web().debug(s7);
throw new ServletException(s7);
objectOut.writeObject(richData.getAudioRecordings().getAll(new ContentRefDTO[0]));
finally {
objectOut.close();
catch (IOException e) {
Log.web().error(e.getMessage());
throw new ServletException();
}

thanks for you reply. but seems we don't call getWriter() at all in our code.
actually this error only happen in our customer's env, no this issue in our development env.
besides using getOutputStream() and getWriter() simultaneously for same response, is this maybe related with some web server configuration?

How to install Java API

I have installed Hyperion Essbase 6.1.4, so i can use VB or C to access OLAP databases. However, i would like to use Java.How can i install Java API?thanks in advance

You will have to download/install the Essbase Enterprise Services 6.1. The Java API is contained within this product and all interaction with Essbase via the Java API uses EES on the middle tier. The good news is that the Java API portion of EES is available for free. If, however, you want to/need to leverage the scalability options of EES, such as server clustering, you will need to add the 'High Concurrency Option' to your Hyperion license agreement.Tim TowApplied OLAP, Inc

INSTALLING SERVLET API

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