Call HTTPServlet in Struts Application (Or Download Servlet)

I have a struts application. I need to call an application that will create a file and then allow the client to open or save it (by writing the file into the response).
Can this be done with a struts action servlet or do I need to use a standard http servlet? If I need to use a standard http servlet how do I create a standard html link to that servlet in my html?
I have placed a servlet tag in the web.xml giving the standard http servlet a servlet-name of downloaddocument.
Any help is appreciated,
Thanks,
DeltaCoder

Yes. And don't cross-post.
http://forum.java.sun.com/thread.jspa?threadID=628983&tstart=0
- Saish

Similar Messages

How to call a struts application in a portlet

How to call a struts application in a portlet. I have two different ear's. In one ear I have my struts application and in one war i have a struts portlet. In the struts portlet provider.xml defaultAction tag can i call the action class .do which in other ear (ie my struts application ear).Can anyone suggest me whether this is the right way or else can u suggest me with some other thing.
Waiting for ur responses.
Thanks and Regards,
Dhanu.

Hi Dhanu,
Your Struts Portlet will not be avialble via a URL as it is completely dependent on Oracle Portal Environment. The Provider for the Portlet is alone available via a URL - you would have registered your Portlet using the URL of the Provider.
Your Struts application, which does not rely on the Oracle Portal Environment, is defeitely accessible from a URL. It's just another web application that uses the popular Struts Framework.
Hence, you can use the URL ( the starting point - a JSP, Servlet, etc. ) of your Struts Application to "call" the application in your Struts Portlet. I don't think you need to fiddle with the parameters in Provider.xml.
Moreover, <defaultAction> in Provider.xml should have the URL of a Struts Action Class - the mapping in the
struts-config.xml should map the .do action to the right JSP file.
You can have a look at Metalink Note : 331069.1 for a good insight into the <defaultAction> Tag.
Regards,
Sandeep

Calling struts application within a portlet

Can anyone explain step wise procedure to call struts application within a portlet.or refer any tutorial for this.

Amir,
this might be because you are using the plain struts taglibs. you should use the pdk-struts taglibs. more specifically, you should use the pdk-struts-html taglib instead of the struts-html lib, as the latter renders URLs for a struts application whereas you need portal-enabled urls, which are provided by the pdk-struts-html lib.
You can either change the taglib reference in your web.xml file to map the plain sruts-html.tld to the pdk-struts-html.tld (don't forget to include it and its jarfile in your deployment file), or you can add the library to every jsp page and replace the <html:whatever> tags by <pdk-html:whatever> tags. (or your other favourite prefix).
Regards,
Benjamin

Working Sample Code: File Download Servlet

Pardon the cross-posting (Java Servlet Technology), but when I was researching this problem I found alot of people asking this question in here as well as in the servlet forum. So I thought this code would be helpful here too.
Here is a complete working servlet for downloading virtually any type of file to a browser.
It uses a file called application.properties to specify the location of the folder where the files to be downloaded reside. Of course you could modify this to allow the users to select the location as well.
A sample URL to call the Servlet would look like this:
http://localhost/website/servlet/DownloadAssistant?YourFileName.ext
I tested this with varying filenames. It did have some issues if the file contained special characters like # symbol. This should be manageable however.
Hope someone finds this useful.
import java.io.*;
import java.util.*;
import java.net.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.zip.GZIPOutputStream;
public class DownloadAssistant extends HttpServlet
private static final String DIR = "dir";
private String separator;
private String root;
public DownloadAssistant()
Properties propFile = null;
FileInputStream in = null;
String JAVA_HOME = "C:\\jrun\\servers\\default\\filetest\\application.properties";
// Get a handle on the peoperties file
try{
in = new FileInputStream(JAVA_HOME);
propFile = new Properties();
propFile.load(in);
catch (IOException ignore){}
separator = "/";
// Get the directory from the application.properties file
// e.g. C:\\Temp\\Files\\
root = propFile.getProperty("app.directory");
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
processRequest(request, response);
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
processRequest(request, response);
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
PrintWriter out = null;
ServletOutputStream stream = null;
GZIPOutputStream zipstream = null;
Object obj = null;
String s = "";
//determine if there is a filename appended to the url
// If so, then decode it
s = HttpUtils.getRequestURL(request).toString();
int i;
if((i = s.indexOf("?")) > 0)
s = s.substring(0, i);
String s1;
if((s1 = request.getQueryString()) == null)
s1 = "";
else
//s1 = decode(s1);
s1 = URLDecoder.decode(s1);
// No filename, so set contentType and generate error message
if(s1.length() == 0)
response.setContentType("text/html");
out = response.getWriter();
out.println("<html>");
out.println("<p>Could not get file name ");
out.println("</html>");
out.flush();
out.close();
return;
// Restriction while gaining access to the file
if(s1.indexOf(".." + separator) > 0)
response.setContentType("text/html");
out = response.getWriter();
out.println("<html>");
out.println("<br><br><br>Restrictions on filename");
out.println("</html>");
out.flush();
out.close();
return;
// Try to get a handle on the file
File file = new File(root + s1);
// Couldn't get the file, return an error message
if(file == null)
response.setContentType("text/html");
out = response.getWriter();
out.println("<html>");
out.println("<p>Could not read file: " + s1);
out.println("</html>");
out.flush();
out.close();
return;
// Either the file doesn't exist or it can't be read, return an error message
if(!file.exists() || !file.canRead())
response.setContentType("text/html");
out = response.getWriter();
out.println("<html><font face=\"Arial\" size=\"+1\">");
out.println("<p>Could not read file " + s1);
out.print("<br>Reasons are: ");
if(!file.exists())
out.println("file does not exist");
else
out.println("file is not readable at this moment");
out.println("</font></html>");
out.flush();
out.close();
return;
// Looks like we can read/access the file, determine its type
String s2 = request.getHeader("Accept-Encoding");
// Is this a zip file?
boolean flag = false;
if(s2 != null && s2.indexOf("gzip") >= 0)
flag = true;
flag = false;
if(flag)
response.setHeader("Content-Encoding", "gzip");
response.setHeader("Content-disposition", "attachment;filename=" + s1);
stream = response.getOutputStream();
zipstream = new GZIPOutputStream(stream);
downloadFile(root + s1, zipstream);
zipstream.close();
stream.close();
// It's not a zip file so treat it as any other file
else
response.setContentType("application/force-download");
response.setHeader("Content-disposition", "attachment;filename=" + s1);
stream = response.getOutputStream();
downloadFile(root + s1, stream);
stream.flush();
stream.close();
}// end processRequest()
// This method downloads the file to the browser
private void downloadFile(String s, OutputStream outstream)
String s1 = s;
byte abyte0[] = new byte[4096];
try
BufferedInputStream instream = new BufferedInputStream(new FileInputStream(s1));
int i;
while((i = instream.read(abyte0, 0, 4096)) != -1)
outstream.write(abyte0, 0, i);
instream.close();
catch(Exception _ex) { }
}//end downloadFile()
public void init(ServletConfig servletconfig)
throws ServletException
super.init(servletconfig);
String s;
if((s = getInitParameter("dir")) == null)
s = root;
separator = System.getProperty("file.separator");
if(!s.endsWith(separator))
s = s + separator;
root = s;
}//end init()
}//end servlet()

Yes - it is useful

Help in struts application

Hi guys,
I'm using struts application,from that i will call
one external java file.(i.e) At the time of server(tomcat) will start ,the java class file is also started.
can u give any idea regarding my condition.I wrote some triggering logic in that Java file.
so, i need once the application will start, the corresponding java file will also called.

"SimpleServlet.java"
package com;
import org.quartz.CronExpression;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.CronTrigger;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.impl.StdSchedulerFactory;
import javax.servlet.*;
import java.io.*;
import javax.servlet.http.HttpServlet;
import org.quartz.ee.servlet.QuartzInitializerServlet;
public class Simple extends HttpServlet {
//Override
public void init(ServletConfig config) throws ServletException {
System.out.println("Initializing Scheduler PlugIn for Jobs!");
super.init(config);
// Retrieve a scheduler from schedule factory
try {
     Scheduler scheduler;
     SchedulerFactory schedulerFactory = new
StdSchedulerFactory();
     scheduler = schedulerFactory.getScheduler();
ServletContext ctx = config.getServletContext();
//Scheduler scheduler = null;
StdSchedulerFactory factory = (StdSchedulerFactory)
ctx.getAttribute(QuartzInitializerServlet.QUARTZ_FACTORY_KEY);
scheduler = factory.getScheduler();
//JobDetail jd = new JobDetail("job1",
"group1",SimpleQuartzJob.class);
JobDetail jd = new JobDetail("job1", "group1",Hello.class);
CronTrigger cronTrigger = new CronTrigger("trigger1","group1");
CronExpression cexp = new CronExpression("0/5 * * * * ?");
//String cronExpr = null;
//cronExpr = getInitParameter("cronExpr");
//System.out.println(cronExpr);
cronTrigger.setCronExpression(cexp);
scheduler.scheduleJob(jd, cronTrigger);
scheduler.start();
System.out.println("Job scheduled now ..");
} catch (Exception e){
e.printStackTrace();
//Override
public void service(ServletRequest request, ServletResponse
response)throws ServletException, IOException {
PrintWriter pw=response.getWriter();
pw.print("<html> <body> <h1>");
pw.print("Please wait,DataBase Operations is
performing.............");
pw.print("</h1></body></html>");
//Override
public String getServletInfo() {
     System.out.println("servlet started..");
return null;
"web.xml"
<?xml version="1.0" encoding="UTF-8"?>
<web-app>
     <display-name>
     Quartz</display-name>
<servlet>
<servlet-name>QuartzInitializer</servlet-name>
<display-name>Quartz Initializer Servlet</display-name>
<servlet-class>org.quartz.ee.servlet.QuartzInitializerServlet</servlet-class>
<load-on-startup>1</load-on-startup>
<init-param>
<param-name>config-file</param-name>
<param-value>quartz.properties</param-value>
</init-param>
<init-param>
<param-name>shutdown-on-unload</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>start-scheduler-on-load</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
<servlet>
<servlet-name>Simple</servlet-name>
<servlet-class>com.Simple</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Simple</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>I tried from this site http://www.oreillynet.com/cs/user/view/cs_msg/86579
but it will not work for me.
It throws servlet exception.
Message was edited by:
SARAV_RS

Error while deploying struts application

Hi every body,
I am new for struts application. While i deploying my application, the following error is comming any body give a remedy to me...
Apache Tomcat/4.0.4 - HTTP Status 500 - Internal Server Error
type Exception report
message Internal Server Error
description The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: File "/WEB-INF/struts-html.tld" not found
     at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:214)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:174)
     at org.apache.jasper.compiler.JspParseEventListener.processTaglibDirective(JspParseEventListener.java:1170)
     at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEventListener.java:765)
     at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingListener.java:125)
     at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java:255)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1145)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1103)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1099)
     at org.apache.jasper.compiler.ParserController.parse(ParserController.java:214)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:210)
     at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:548)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:176)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:188)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:381)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:473)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
     at java.lang.Thread.run(Thread.java:534)
--------------------------------------------------------------------------------

Hi every body,
I am new for struts application. While i deploying my
application, the following error is comming any body
give a remedy to me...
Apache Tomcat/4.0.4 - HTTP Status 500 - Internal
Server Error
type Exception report
message Internal Server Error
description The server encountered an internal error
(Internal Server Error) that prevented it from
fulfilling this request.
exception
org.apache.jasper.JasperException: File
"/WEB-INF/struts-html.tld" not found
at
t
org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibr
aryInfoImpl.java:214)
at
t
org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibr
aryInfoImpl.java:174)
at
t
org.apache.jasper.compiler.JspParseEventListener.proce
ssTaglibDirective(JspParseEventListener.java:1170)
at
t
org.apache.jasper.compiler.JspParseEventListener.handl
eDirective(JspParseEventListener.java:765)
at
t
org.apache.jasper.compiler.DelegatingListener.handleDi
rective(DelegatingListener.java:125)
at
t
org.apache.jasper.compiler.Parser$Directive.accept(Par
ser.java:255)
at
t
org.apache.jasper.compiler.Parser.parse(Parser.java:11
45)
at
t
org.apache.jasper.compiler.Parser.parse(Parser.java:11
03)
at
t
org.apache.jasper.compiler.Parser.parse(Parser.java:10
99)
at
t
org.apache.jasper.compiler.ParserController.parse(Pars
erController.java:214)
at
t
org.apache.jasper.compiler.Compiler.compile(Compiler.j
ava:210)
at
t
org.apache.jasper.servlet.JspServlet.loadJSP(JspServle
t.java:548)
at
t
org.apache.jasper.servlet.JspServlet$JspServletWrapper
.loadIfNecessary(JspServlet.java:176)
at
t
org.apache.jasper.servlet.JspServlet$JspServletWrapper
.service(JspServlet.java:188)
at
t
org.apache.jasper.servlet.JspServlet.serviceJspFile(Js
pServlet.java:381)
at
t
org.apache.jasper.servlet.JspServlet.service(JspServle
t.java:473)
at
t
javax.servlet.http.HttpServlet.service(HttpServlet.jav
a:853)
at
t
org.apache.catalina.core.ApplicationFilterChain.intern
alDoFilter(ApplicationFilterChain.java:247)
at
t
org.apache.catalina.core.ApplicationFilterChain.doFilt
er(ApplicationFilterChain.java:193)
at
t
org.apache.catalina.core.StandardWrapperValve.invoke(S
tandardWrapperValve.java:243)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:566)
at
t
org.apache.catalina.core.StandardPipeline.invoke(Stand
ardPipeline.java:472)
at
t
org.apache.catalina.core.ContainerBase.invoke(Containe
rBase.java:943)
at
t
org.apache.catalina.core.StandardContextValve.invoke(S
tandardContextValve.java:190)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:566)
at
t
org.apache.catalina.valves.CertificatesValve.invoke(Ce
rtificatesValve.java:246)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:564)
at
t
org.apache.catalina.core.StandardPipeline.invoke(Stand
ardPipeline.java:472)
at
t
org.apache.catalina.core.ContainerBase.invoke(Containe
rBase.java:943)
at
t
org.apache.catalina.core.StandardContext.invoke(Standa
rdContext.java:2347)
at
t
org.apache.catalina.core.StandardHostValve.invoke(Stan
dardHostValve.java:180)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:566)
at
t
org.apache.catalina.valves.ErrorDispatcherValve.invoke
(ErrorDispatcherValve.java:170)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:564)
at
t
org.apache.catalina.valves.ErrorReportValve.invoke(Err
orReportValve.java:170)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:564)
at
t
org.apache.catalina.valves.AccessLogValve.invoke(Acces
sLogValve.java:468)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:564)
at
t
org.apache.catalina.core.StandardPipeline.invoke(Stand
ardPipeline.java:472)
at
t
org.apache.catalina.core.ContainerBase.invoke(Containe
rBase.java:943)
at
t
org.apache.catalina.core.StandardEngineValve.invoke(St
andardEngineValve.java:174)
at
t
org.apache.catalina.core.StandardPipeline.invokeNext(S
tandardPipeline.java:566)
at
t
org.apache.catalina.core.StandardPipeline.invoke(Stand
ardPipeline.java:472)
at
t
org.apache.catalina.core.ContainerBase.invoke(Containe
rBase.java:943)
at
t
org.apache.catalina.connector.http.HttpProcessor.proce
ss(HttpProcessor.java:1027)
at
t
org.apache.catalina.connector.http.HttpProcessor.run(H
ttpProcessor.java:1125)
     at java.lang.Thread.run(Thread.java:534)
--------------------------i am try to run struts application. but it shows following error
org.apache.jasper.JasperException: File "/WEB-INF/struts-html.tld" not found
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

Console error while deploying a struts application..

I am getting following exception while deploying a struts application:-
javax.servlet.ServletException: org/apache/commons/logging/LogFactory
     at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:884)
     at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:848)
     at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:787)
     at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:3252)
     at weblogic.servlet.internal.WebAppServletContext.preloadServlets(WebAppServletContext.java:3197)
     at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:3174)
     at weblogic.servlet.internal.WebAppServletContext.setStarted(WebAppServletContext.java:5647)
     at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:869)
     at weblogic.j2ee.J2EEApplicationContainer.start(J2EEApplicationContainer.java:2022)
     at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2063)
     at weblogic.management.deploy.slave.SlaveDeployer$ComponentActivateTask.activateContainer(SlaveDeployer.java:2592)
     at weblogic.management.deploy.slave.SlaveDeployer$ActivateTask.doCommit(SlaveDeployer.java:2515)
     at weblogic.management.deploy.slave.SlaveDeployer$Task.commit(SlaveDeployer.java:2317)
     at weblogic.management.deploy.slave.SlaveDeployer$Task.checkAutoCommit(SlaveDeployer.java:2399)
     at weblogic.management.deploy.slave.SlaveDeployer$Task.prepare(SlaveDeployer.java:2311)
     at weblogic.management.deploy.slave.SlaveDeployer$ActivateTask.prepare(SlaveDeployer.java:2479)
     at weblogic.management.deploy.slave.SlaveDeployer.processPrepareTask(SlaveDeployer.java:798)
     at weblogic.management.deploy.slave.SlaveDeployer.prepareDelta(SlaveDeployer.java:507)
     at weblogic.management.deploy.slave.SlaveDeployer.prepareUpdate(SlaveDeployer.java:465)
     at weblogic.drs.internal.SlaveCallbackHandler$1.execute(SlaveCallbackHandler.java:25)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
please help me out.

The ServletException is just a wrapper exception which informs about an underlying failure. When interpreting stacktraces,the bottommost root cause parts is the most important part. I assume that it's just a java.lang.ClassNotFoundException on org/apache/commons/logging/LogFactory. In that case, the exception is self-explaining enough. The mentioned class is missing in the classpath. The solution is also obvious: add the mentioned class (or at least, the JAR file with the mentioned class) to the classpath and you're fine. As the package name already hints, you can download it at [http://commons.apache.org/logging].
For future java.lang.* exceptions please consult 'New to Java' forum. This is unrelated to Java Servlet.

Getting save as dialog while downloading using download servlet

Hi Folks,
I am developing a web based video download application.In this i intend to download the video file by calling a download servlet.
Though the application works ,that is it downloads the file, the video file is straight away being played by the media player.My objective is to save it in the client machine at the desired location of the hard disk and then play the same later at cient's convenience. This is not happenening with my application.
Pl suggest me as how to get the save as dialog box to save the video file at will.
The site is to be lauched in a weeks time.Pl help!!!
thanks and regards
sathiyam K G

Hi rupak,
Thanks for the tip.I actually did all the things u said.But the difference is that i rely on http download.
I mean i do not use the servlet output stream to download the video file.If i do so it takes about 20 mins for a 10 MB sample file,to be downloaded via a broad band T1 link.
So i just use href to depend on http by which the download speed is accelerated and my one clip of video of 100MB average size can be downloaded in about 15 min. duration.
If this is not the correct way of working for the video download will u pl suggest me any other way through servlet, i can download with the above specified speed.
i am clear if i use the servlet output stream the download process is deadly slow.
so pl suggest!!
thanks again
regards
sathiyam K G

Need urgent help on file download servlet problem in Internet Explore

I have trouble to make my download servlet work in Internet Explore. I have gone through all the previous postings and done some research on the internet, but still can't figure out the solution. <br>
I have a jsp page called "download.jsp" which contains a URL to download a file from the server, and I wrote a servlet (called DownloadServlet) to look up the corresponding file from the database based on the URL and write the file to the HTTP output to send it back to the browser. <br>
the URL in download.jsp is coded like <a href="/download/<%= currentDoc.doc_id %>/<%= currentDoc.name %>">on the browser, it will be sth like , the number 87 is my internal unique number for a file, and "myfile.doc" is the real document name. <br>
in my web.xml, "/download/" is mapped to DownloadServlet <br>
the downloadServlet.java looks like
tem_name = ... //read DB for file name
// set content type
if ( tmp_name.endsWith(".doc")) {
response.setContentType("application/msword");
else if ( tmp_name.endsWith(".pdf")){
response.setContentType("application/pdf");
else if ( tmp_name.endsWith(".ppt")){
response.setContentType("application/vnd.ms-powerpoint");
else if ( tmp_name.endsWith(".xls")){
response.setContentType("application/vnd.ms-excel");
else {
response.setContentType("application/download");
// set HTTP header
response.setHeader("Content-Disposition",
"attachment; filename=\""+tmp_name+"\"");
OutputStream os = response.getOutputStream();
//read local file and write back to browser
int i;
while ((i = is.read()) != -1) {
os.write (i);
os.flush();
Everything works fine in Netscape 7.0, when I click on the link, Netscape prompts me to choose "open using Word" or "save this file to disk". That's exactly the behavior I want. <br>
However in IE 5.50, the behavior is VERY STRANGE.
First, when I click on the URL, the popup window asks me to "open the file from its current location" or "save the file to disk". It also says "You have chosen to download a file from this location, ...(some url).. from localhost"
(1) If I choose "save the file to disk", it will save the rendered "download.jsp" (ie, the currect page with URL I just clicked, which isn't what I want).
(2)But if I choose "open the file from its current location", the 2nd popup window replaces the 1st, which also has the "Open ..." and "Save.." options, but it says "You have chosen to download a file from this location, MYFILE.doc from localhost". (notice it shows the correct file name now)
(3) If I choose "Save..." on the 2nd window, IE will save the correct file which is "myfile.doc"; if I choose "Open ...", a 3rd replaces the 2nd window, and they look the same, and when I choose "Open..." on the 3rd window, IE will use Word to open it.
any ideas?
</a>

Did you find a solution to this problem? I've been wrestling with the same issues for the past six months. Nothing I try seems to work. I've tried setting the contentLength(), inline vs. attachments, different write algorythms, etc. I don't get the suggestion to rename the servlet to a pdf file.

Error in simple struts application

Hi friends,
Happy to meet again. Please help me out from this situation which kills me for the past 1 week. While i try to deploy my first struts application through eclipse 3.2 with jdk1.5 and tomcat 5.5.25 and struts 2.0.9 i'm getting this error. what is this regarding.
FYI
I'm just using two text boxes and trying to get those in next page....
The error goes like this
exception
org.apache.jasper.JasperException: Failed to load or instantiate TagExtraInfo class: org.apache.struts.taglib.html.MessagesTei
     org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:51)
     org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
     org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:281)
     org.apache.jasper.compiler.TagLibraryInfoImpl.createTagInfo(TagLibraryInfoImpl.java:423)
     org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.java:249)
     org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:163)
     org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:424)
     org.apache.jasper.compiler.Parser.parseDirective(Parser.java:493)
     org.apache.jasper.compiler.Parser.parseElements(Parser.java:1557)
     org.apache.jasper.compiler.Parser.parse(Parser.java:127)
     org.apache.jasper.compiler.ParserController.doParse(ParserController.java:212)
     org.apache.jasper.compiler.ParserController.parse(ParserController.java:101)
     org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:156)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:296)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
java.lang.ClassNotFoundException: org.apache.struts.taglib.html.MessagesTei
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1362)
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1208)
     org.apache.jasper.compiler.TagLibraryInfoImpl.createTagInfo(TagLibraryInfoImpl.java:420)
     org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.java:249)
     org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:163)
     org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:424)
     org.apache.jasper.compiler.Parser.parseDirective(Parser.java:493)
     org.apache.jasper.compiler.Parser.parseElements(Parser.java:1557)
     org.apache.jasper.compiler.Parser.parse(Parser.java:127)
     org.apache.jasper.compiler.ParserController.doParse(ParserController.java:212)
     org.apache.jasper.compiler.ParserController.parse(ParserController.java:101)
     org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:156)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:296)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

See http://forum.java.sun.com/thread.jspa?messageID=3866745&tstart=0

Java.lang.ClassCastException in simple struts application. please help me!

I have a simple struts application, it only have a login form. however, it's alway throw java.lang.ClassCastException when I submit the form. Here is full stack trace:
14-03-2007 17:04:50 org.apache.struts.chain.ComposableRequestProcessor init
INFO: Initializing composable request processor for module prefix ''
14-03-2007 17:04:50 org.apache.struts.chain.commands.servlet.CreateAction getAction
INFO: Initialize action of type: ndlinh.struts.lab.RegistrationForm
14-03-2007 17:04:50 org.apache.struts.chain.commands.AbstractExceptionHandler execute
WARNING: Unhandled exception
java.lang.ClassCastException: ndlinh.struts.lab.RegistrationForm
     at org.apache.struts.chain.commands.servlet.CreateAction.getAction(CreateAction.java:66)
     at org.apache.struts.chain.commands.AbstractCreateAction.execute(AbstractCreateAction.java:82)
     at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48)
     at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
     at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
     at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
     at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280)
     at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
     at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:459)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
     at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
     at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
     at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     at java.lang.Thread.run(Thread.java:595)
14-03-2007 17:04:50 org.apache.struts.chain.commands.ExceptionCatcher postprocess
WARNING: Exception from exceptionCommand 'servlet-exception'
java.lang.ClassCastException: ndlinh.struts.lab.RegistrationForm
     at org.apache.struts.chain.commands.servlet.CreateAction.getAction(CreateAction.java:66)
     at org.apache.struts.chain.commands.AbstractCreateAction.execute(AbstractCreateAction.java:82)
     at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48)
     at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
     at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
     at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
     at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280)
     at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
     at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:459)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
     at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
     at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
     at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     at java.lang.Thread.run(Thread.java:595)
Here is my code:
package ndlinh.struts.lab;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
public class RegistrationForm extends ActionForm {
     private String userid = null;
     private String password = null;
     private String password2 = null;
     public RegistrationForm() {
          System.out.println("************ Registration Form created *************");
      * @return the password
     public String getPassword() {
          return password;
      * @param password the password to set
     public void setPassword(String password) {
          this.password = password;
      * @return the password2
     public String getPassword2() {
          return password2;
      * @param password2 the password2 to set
     public void setPassword2(String password2) {
          this.password2 = password2;
      * @return the userid
     public String getUserid() {
          return userid;
      * @param userid the userid to set
     public void setUserid(String userid) {
          this.userid = userid;
     public void reset(ActionMapping arg0, HttpServletRequest arg1) {
          userid = "";
          password = "";
          password2 = "";
package ndlinh.struts.lab;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
public final class RegistrationAction extends Action {
     public ActionForward execute(ActionMapping mapping, ActionForm actionForm,
                                         HttpServletRequest request, HttpServletResponse response)
          try {
               System.out.println("*******************" + actionForm.toString() + "*******************");
               RegistrationForm form = (RegistrationForm)actionForm;
               String username = form.getUserid();
               String password = form.getPassword();
               System.out.println(username);
               // simple login checking.
               // if userid equals password, user can login to system
               if ( username.equalsIgnoreCase(password)) {
                    return mapping.findForward("success");
               } else {
                    return mapping.findForward("failure");
          } catch (Exception e) {
               e.printStackTrace();
               return mapping.findForward("failure");
}registration.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
     <html:form action="/register">
          Username: <html:text property="userid" /> <br />
          Password: <html:password property="password" /> <br />
          Re-type: <html:password property="password2" />
          <html:submit value="Register" />
     </html:form>
</body>
</html>struts-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
<form-beans>
     <form-bean name="registrationForm" type="ndlinh.struts.lab.RegistrationForm" />
</form-beans>
<action-mappings>
     <action path="/register"
             type="ndlinh.struts.lab.RegistrationForm"
             name="registrationForm"
             validate="false"
             scope="request"
             input="registration.jsp" >
          <forward name="success" path="/jsp/success.jsp" />
          <forward name="failure" path="/jsp/failure.jsp" />
     </action>
</action-mappings>
</struts-config>web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>System information:
Tomcat 5.5.20
Struts 1.3.5
JDK1.5.08

struts-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
<form-beans>
     <form-bean name="registrationForm" type="ndlinh.struts.lab.RegistrationForm" />
</form-beans>
<action-mappings>
     <action path="/register"
             type="ndlinh.struts.lab.RegistrationAction" // action class
             name="registrationForm" // form bean name
             validate="false"
             scope="request"
             input="registration.jsp" >
          <forward name="success" path="/jsp/success.jsp" />
          <forward name="failure" path="/jsp/failure.jsp" />
     </action>
</action-mappings>
</struts-config>HTH

Exception while running STRUTS application???

HI,
This is my 2nd post regarding my struts application, previous error was solved, but when i'm tryin to run my application with tomcat i'm getting error(plz help me tellin what changes i've to do in my application).It is actually the first page of the application which is a simple index.jsp, from where i've links to other main pages.The error i'm getting is:-
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NullPointerException
org.apache.struts.util.RequestUtils.computeURL(RequestUtils.java:521)
org.apache.struts.util.RequestUtils.computeURL(RequestUtils.java:436)
org.apache.struts.taglib.html.LinkTag.calculateURL(LinkTag.java:495)
org.apache.struts.taglib.html.LinkTag.doStartTag(LinkTag.java:353)
org.apache.jsp.index_jsp._jspx_meth_html_link_0(index_jsp.java:96)
org.apache.jsp.index_jsp._jspService(index_jsp.java:69)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.27 logs.
Apache Tomcat/5.0.27

Here i'm posting my index.jsp(where link tag is used), search.jsp, web.xml and struts.xml.frm index.jsp i just want to go to search.jasp frm where all the real thing will start.plz have look on all these files and let me no where i'm wrong.
index.jsp :-
<%@ page langiuage="java" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<html>
<head>
<title>Gaurav, Human Resource Portal</title>
<head>
<body>
<font size="+1"><b>Gaurav Human Resource Portal</b></font><br>
<hr wodth="100%" noshade="true">
 Add an Employee<br>
<html:link forward="search">Search for Employees</html:link><br>
</body>
</html>
search.jsp :-
<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<html>
<head>
<title>Gaurav, Human Resource Portal</title>
</head>
<body>
<font size="+1"><b>Gaurav, Human Resource Portal - search.jsp</b></font>
<hr width="100%" noshade="true">
<html:errors/>
<html:form action="/search">
     <table>
          <tr>
               <td align="right"><bean:message key="label.search.name"/>:</td>
               <td><html:text property="name"/></td>
          </tr>
          <tr>
               <td></td>
               <td>--- or ---</td>
          </tr>
          <tr>
               <td align="right"><bean:message key="label.search.ssNum"/>:</td>
               <td><html:text property="ssNum"/> (xxx-xx-xxxx)</td>
          </tr>
          <tr>
               <td></td>
               <td><html:submit/></td>
          </tr>
     </table>
</html:form>
<logic:present name="searchForm" property="results">
     <hr width="100%" size="1" noshade="true">
     <bean:size id="size" name"searchForm" property="results"/>
          <logic:equal name="size" value="0">
               <center><font color="red"><b>No Employees Found</b></font></center>
          </logic:equal>
          <logic:greaterThan name="size" value="0">
               <table border="1">
                    <tr>
                         <th>Name</th>
                         <th>Social Security number</th>
                    </tr>
                    <logic:iterate id="result" name="searchForm" property="results">
                    <tr>
                         <td><bean:write name="result" property="name"/></td>
                         <td><bean:write name="result" property="ssNum"/></td>
                    </tr>
                    </logic:iterate>
               </table>
          </logic:greaterThan>
</logic:present>
</body>
</html>
web.xml :-
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<display-name>Gaurav MiniHR Portal</display-name>

<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>

<taglib>
<taglib-uri>/tags/struts-bean</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/tags/struts-html</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/tags/struts-logic</taglib-uri>
<taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/tags/struts-nested</taglib-uri>
<taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>/tags/struts-tiles</taglib-uri>
<taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
</taglib>
</web-app>
struts-config.xml :-
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
     
     <form-beans>
          <form-bean name="searchForm" type="com.jamesholmes.minihr.SearchForm" />
</form-beans>
<global-forwards>
          <forward name="search" path="/search.jsp" />
</global-forwards>

<action-mappings>
          <action path="/search"
                    type="com.jamesholmes.minih.SearchAction"
                    name="searchForm"
                    scope="request"
                    validat="true"
                    input="/search.jsp"
          </action>
</action-mappings>

<message-resources parameter="com.jamesholmes.minihr.ApplicationResources"/>
</struts-config>

Compilation error in java for struts application.

Hello,
I'm a newbie in java and struts, i was trying a simple struts application given in "struts complete reference".This is my code of its Controller class(Action class):-
package com.jamesholmes.struts;
import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
public final class SearchAction extends Action
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
throws Exception
EmployeeSearchService service = new EmployeeSearchService();
ArrayList results;
SearchForm searchForm = (SearchForm) form;
//Perform employee search based on what criteria was entered.
String name = searchForm.getName();
if(name != null && name.trim().length() > 0)
results = service.searchByName(name);
else
results = service.searchBySsNum(searchForm.getSsNum().trim());
//place search results in SearchForm for access by jsp.
searchForm.setResults(results);
//Forward control to this Action's input page.
return mapping.getInputForward();
Now problem is when i'm compiling this java file i'm getting error"can not resolve symbol" for the instances i'm creating for SearchForm(view class) and EmployeeSearchService(model class).can any one help me how to resolve this error. I've tried importing those classes explicitly also, but error gets increased this way.

Tht problem is solved, it was a mistake frm my side in compilation precedure.Anyway, now the real error-After i compiled and created the war file of application, i was running it in tomcat and got this Error, it is i guess a server sprcific error which i am unable to understand., can any one now help me solving this out?????Error is this :-
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NullPointerException
     org.apache.struts.util.RequestUtils.computeURL(RequestUtils.java:521)
     org.apache.struts.util.RequestUtils.computeURL(RequestUtils.java:436)
     org.apache.struts.taglib.html.LinkTag.calculateURL(LinkTag.java:495)
     org.apache.struts.taglib.html.LinkTag.doStartTag(LinkTag.java:353)
     org.apache.jsp.index_jsp._jspx_meth_html_link_0(index_jsp.java:96)
     org.apache.jsp.index_jsp._jspService(index_jsp.java:69)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.27 logs.
Apache Tomcat/5.0.27

New session creation in struts Application

I succeed to access my J2EE struts application from the Portal (using the intigrator)
The problem is that I create a new HttpSession in the first action called by the portal url by:
session = pRequest.getSession(true);
I set attributes into this session.
When I navigate to the next page (using struts actions)
and try to get this same session -
pRequest.getSession(false)
I see that the ID of the session has changed from the first one and it containes none of the attributes I set.
Does this have to do with IViews in any way ?

Hi Gidi,
I am not sure about your qn. but try this link it will give u some idea about getting J2EE application in a portal component.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/ep/g-i/how to access an ejb from a portal component.mht
Regards
gEorgE

500 Internal Server Error when deploying struts application on OAS 10.1.3

I've installed the Oracle Application Server several times, this time with 10.1.3 our application doesn't run and we get the error shown below.
Any ideas? It looks to be something with struts or tiles. struts.jar and tiles.jar is included in our deployed j2ee application WEBI-INF/lib dir. The application was built with jdeveloper 10.1.2 and compiled with java 1.4.
We load a custom log4j.properties, and nothing is even getting logged except for the log4j init stuff, nor is this NoSuchMethod error showing up in any other of the many different log files. (That I can find anyway)
500 Internal Server Error
java.lang.NoSuchMethodError: org.apache.struts.tiles.DefinitionsUtil.populateDefinitionsFactoryConfig(Lorg/apache/struts/tiles/DefinitionsFactoryConfig;Ljavax/servlet/ServletConfig;)V
     at org.apache.struts.tiles.TilesPlugin.readFactoryConfig(TilesPlugin.java:267)
     at org.apache.struts.tiles.TilesPlugin.init(TilesPlugin.java:159)
     at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:1158)
     at org.apache.struts.action.ActionServlet.init(ActionServlet.java:473)
     at javax.servlet.GenericServlet.init(GenericServlet.java:256)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpApplication.loadServlet(HttpApplication.java:2231)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpApplication.findServlet(HttpApplication.java:4617)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpApplication.findServlet(HttpApplication.java:4541)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:2821)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:740)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:451)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.AJPRequestHandler.run(AJPRequestHandler.java:299)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].server.http.AJPRequestHandler.run(AJPRequestHandler.java:187)
     at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
     at com.evermind[Oracle Containers for J2EE 10g (10.1.3.0.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)

Figures, I've been fighting with this for the past day and a half and I figure it out shortly after I post the question.
It turns out the tiles.jar that was in our WEB-INF/lib directory was an old one. It looks like the newer struts.jar (from jdeveloper) we're using includes the tiles information. Once I removed tiles.jar, commons-dbcp, pool, resources, and services, it works now.
It looks like jdeveloper overwrites most of those files with it's built in struts integration, and we've just been lucky before that struts.jar was being loaded before tiles.jar and something with oas 10.1.3 is loading the jars in a different order--but I'm just guessing here.

Call HTTPServlet in Struts Application (Or Download Servlet)

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