Servlet and Actions - Apache Struts !

Hi,
i defined an ActionServlet in the web.xml and some "Actions" in the struts-config.xml.
If all the requests are managed by the servlet defined in the web.xml, in case i had a lot of requests would it be better defined more ActionServlet in the web.xml which refers to different struts-config.xml ?
I think that having more servlet is much better to manage the load of the entire application.
Any suggestions ?
Cheers.
Stefano

No need creating more than one ActionServlet : Servlets are Threads so each request made by a client is handled by a different Thread!

Similar Messages

Javax.servlet.UnavailableException: org.apache.struts.tile.TilesRequestProc

hi
I attached the tiles. jar file to tomcat lib folder
that jar file is having the source
when I run the project the following error is coming
SEVERE: Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable. Most likely, this is due to an incorrect or missing library dependency.
javax.servlet.ServletException: org.apache.struts.tile.TilesRequestProcessor
     at org.apache.struts.tiles.TilesPlugin.initRequestProcessorClass(TilesPlugin.java:351)
     at org.apache.struts.tiles.TilesPlugin.init(TilesPlugin.java:133)
     at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:869)
     at org.apache.struts.action.ActionServlet.init(ActionServlet.java:336)
     at javax.servlet.GenericServlet.init(GenericServlet.java:211)
     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
     at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)
     at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
     at org.apache.catalina.core.StandardService.start(StandardService.java:450)
     at org.apache.catalina.core.StandardServer.start(StandardServer.java:709)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)

hi karthik
SEVERE: Can't set TilesRequestProcessor: bad class name 'org.apache.struts.tile.TilesRequestProcessor'.
Dec 6, 2007 3:08:15 PM org.apache.struts.action.ActionServlet init
SEVERE: Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable. Most likely, this is due to an incorrect or missing library dependency.
javax.servlet.ServletException: org.apache.struts.tile.TilesRequestProcessor
     at org.apache.struts.tiles.TilesPlugin.initRequestProcessorClass(TilesPlugin.java:351)
     at org.apache.struts.tiles.TilesPlugin.init(TilesPlugin.java:133)
     at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:869)
     at org.apache.struts.action.ActionServlet.init(ActionServlet.java:336)
     at javax.servlet.GenericServlet.init(GenericServlet.java:211)
     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
     at org.apache.catalina.core.StandardContext.reload(StandardContext.java:2990)
     at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:403)
     at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1277)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1569)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1578)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1578)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1558)
     at java.lang.Thread.run(Unknown Source)
Dec 6, 2007 3:08:15 PM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet action as unavailable
Dec 6, 2007 3:08:15 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /Testingtiles threw load() exception
javax.servlet.UnavailableException: org.apache.struts.tile.TilesRequestProcessor
     at org.apache.struts.action.ActionServlet.init(ActionServlet.java:368)
     at javax.servlet.GenericServlet.init(GenericServlet.java:211)
     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:932)
     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3917)
     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4201)
     at org.apache.catalina.core.StandardContext.reload(StandardContext.java:2990)
     at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:403)
     at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1277)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1569)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1578)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1578)
     at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1558)
     at java.lang.Thread.run(Unknown Source)
Dec 6, 2007 3:08:34 PM org.apache.catalina.core.StandardWrapperValve invoke
INFO: Servlet action is currently unavailable

Servlets and Tomcat/Apache

Okay,
Tomcat 4.1 running with Apache.
Installed mod_jk, piece of cake.
JSPs run through Apache like a dream.
Tomcat examples ( jsp and servlets) run through Apache perfectly ( that is no :8080 business).
My JSP's run through Apache no problem. Works great.
My SERVLETS WILL NOT RUN THROUGH APACHE FOR ANYTHING.
My context looks like this in server.xml:
<Context path="/nuweb" docBase="/home/shared/nuweb" debug="0"
reloadable="true" crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="nuweb" suffix=".log"
timestamp="true"/>
</Context>
Note: that I am not under <TOMCAT_HOME>/webapps.
The reason is that I will, in production not be the Unix admin on the server. I will only have priviledges within my directory. I will not be able to drop war files in the webapps directory. I will not be able
to start and stop tomcat or apache ( there are 100 diffrent apache contexts on that machine and someday many of them will be going through tomcat for jsp and servlet support).
My servlets will only run if I put :8080/nuweb/servlet/HelloServlet in the URL. Take off the 8080 and I get Page not found. Not the tomcat 404 page, the Browswer 404 errror.
Here is my web.xml which lives in the WEB-INF directory of of /home/shared/nuweb
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>org.nu.servlet.HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
</web-app>
In devlopment I am on a system that is very close to what the production server will look like ( Tomcat 4.1 same version of Apache, same Unix ). In development I can restart all the servers edit server.xml etc. On the production I would have to schedule that stuff. I want to be able to compile classes and drop them in the WEB-INF/classes... directory and have them run. Is that too much to ask?

Hi,
I am also facing same error.
I am not able to view my servlets via apache web server.
ie when i do "http://localhost/enlighta/logon"
I get http 404 page not found error
but when I do http://localhost:8080/enlighta/logon
all works fine
I am using apache 2 and tomcat 4.5
This is I have done:
1.I have http server running on port 80
2. appserver on port 8080
3. I have a war file enlighta.war deployed on webserevr
4. The static content like images and html page I have moved to webserver
5. The servlet context of the app on the app server is /enlighta
6. In the web.xml I have defined all the servlet maping.
the port 8009 has the connecter is running/listening.
the configuration
sever.xml on tomcat

<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3" />
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
httpd.conf on apache
# Load mod_jk
LoadModule jk_module modules/mod_jk.so
# Configure mod_jk
JkWorkersFile conf/workers.properties
JkLogFile logs/mod_jk.log
JkLogLevel info
# First Virtual Host.
<VirtualHost 192.168.1.2:8080>
ServerAdmin [email protected]
DocumentRoot /enlighta/
ServerName localhost
ErrorLog logs/enlighta_error_log
TransferLog logs/enlighta_access_log
JkMount /enlighta/* ajp13
</VirtualHost>
workers.properties
worker.list=ajp13
# Defining a worker named ajp13w and of type ajp13
# Note that the name and the type do not have to match.
worker.ajp13.type=ajp13
worker.ajp13.host=localhost
worker.ajp13.port=8009
Now I feel I am doing something wrong on defining virtual host.
Or may be something else is wrong.
I have gone thru the previous thread but I dont have mod_jk.conf file.
Please help!!!
Thanks
Sachin

Servlets and Actions

Hi,
i defined an ActionServlet in the web.xml and some "Actions" in the struts-config.xml.
If all the requests are managed by the servlet defined in the web.xml, in case i had a lot of requests would it be better defined more ActionServlet in the web.xml which refers to different struts-config.xml ?
I think that having more servlet is much better to manage the load of the entire application.
Any suggestions ?
Cheers.
Stefano

"...If all the requests are managed by the servlet defined in the web.xml, in case i had a lot of requests would it be better defined more ActionServlet in the web.xml which refers to different struts-config.xml ?..."
No. Using a single, multi-threaded servlet is the most efficient way to process multiple requests. Only one instance of the ActionServlet is required for the whole app. Bottom line - multiple threads are more efficient than multiple instances.

Org.apache.struts.action.ActionServlet not found in web-application

Dear All,
I am new to ADF environment. I tried to create a simple page to show the records from
a table . I followed the sample application which is available in "Building Oracle ADF Applications: Workshop".
When i run my action from Struts Page Flow. It is giving error like
500 Internal Server Error
Servlet error: Error instantiating servlet 'action'. Servlet class org.apache.struts.action.ActionServlet not found in web-application EmpMaintanance-ViewController-webapp
anybody can suggest me What i missed?
Thanks in advance...

Hi,
you need to register libraries with th OC4J configuration files. However, you can also deploy the Struts library with you application (see OC4J documentation which is accessible on OTN via Oracle As documentation), in which case they are available from the application classpath
Frank

Help With Integrating Servlet and JSP Page?

Hello There
--i made jsp page that contain name and description fields and add button
--and i made servlet that contain the code to insert name and description in the database
--and i want to make that when the user hit the add button
-->the entered name and description is sent to the servlet
and the servlet sent them to database?
here's what i 've done:
the jsp code:
<html:html locale="true">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>
        Categories Page
       </title>
        <html:base/>
    </head>
    <body style="background-color: white">
    <form action="jpage.jsp" method="get">
        <h1>
            <center>
categories Operations
            </center>
        </h1>
        <h3>
             <label>Name</label>
        <input type="text" name="name" value="" size="10" />
             <label>Description</label>
         <input type="text" name="description" value="" size="10" />
         <input type="submit" value="Add" name="button" />
       </h3>
   </form>
    </body>
</html:html>the servlet code:
import java.io.*;
import java.util.Enumeration;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import java.net.*;
class NewServlet1 extends HttpServlet{
     Connection conn;
     private ServletConfig config;
public void init(ServletConfig config)
throws ServletException{
     this.config=config;
public void service (HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
   HttpSession session = req.getSession(true);
   res.setContentType("text/html");
try{
     Class.forName("com.mysql.jdbc.Driver");
   conn = DriverManager.getConnection("jdbc:mysql://localhost/struts", "root", "");
     PreparedStatement ps;
   ps = conn.prepareStatement ("INSERT INTO categories (Name, Description) VALUES(?,?)");
      ps.setString (1, "aa");
      ps.setString (3, "bb");
      ps.executeUpdate();
      ps.close();
      conn.close();
}catch(Exception e){ e.getMessage();}
public void destroy(){}
}

The JSP Code:
<html:html locale="true">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>
        Categories Page
       </title>
        <html:base/>
    </head>
    <body style="background-color: white">
    <form action="actionServlet.do?action=Additem" method="*post*">
        <h1>
            <center>
categories Operations
            </center>
        </h1>
        <h3>
             <label>Name</label>
        <input type="text" name="name" value="" size="10" />
             <label>Description</label>
         <input type="text" name="description" value="" size="10" />
         <input type="button" value="Submit">
       </h3>
   </form>
    </body>
</html:html>The Servlet Code:
import java.io.*;
import java.util.Enumeration;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import java.net.*;
public class NewServlet1 extends HttpServlet implements SingleThreadModel {
    public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException {
        doPost(request,response);
    public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException {
          String action = request.getParameter("action"); // action = "Additem"
          if (action.equals("Additem")) {
               String name = request.getParameter("name");
               String description = request.getParameter("description");
                     RequestDispatcher reqDisp = null;
               try{
              Connection conn;
              PreparedStatement ps;
     Class.forName("com.mysql.jdbc.Driver");
   conn = DriverManager.getConnection("jdbc:mysql://localhost/struts", "root", "");
   ps = conn.prepareStatement ("INSERT INTO categories (Name, Description) VALUES(?,?)");
      ps.setString (1, name);
      ps.setString (3, description);
      ps.executeUpdate();
      ps.close();
      conn.close();
      reqDisp= request.getRequestDispatcher("./index.jsp");
      reqDisp.forward(request, response);
               catch (Exception ex){
                    System.out.println("Error: "+ ex);
}The web.xml code:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <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>
        <servlet-name>NewServlet1</servlet-name>
        <servlet-class>NewServlet1</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>action</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>NewServlet1</servlet-name>
        <url-pattern>/NewServlet1</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
        </welcome-file-list>
        <servlet>
     <servlet-name>actionServlet</servlet-name>
     <servlet-class>com.test.servlet.NewServlet1</servlet-class>
</servlet>
<servlet-mapping>
     <servlet-name>actionServlet</servlet-name>
     <url-pattern>*.do</url-pattern>
</servlet-mapping>
    </web-app>

Java.lang.NullPointerException at org.apache.struts.taglib.tiles.InsertTag

I am using tiles with JSF.
my starting page is template.jsp which is like this..
<f:view>
<f:subview id="header">
<tiles:insert attribute="header" flush="false"/>
</f:subview>
<f:subview id="menu">
<tiles:insert attribute="menu" flush="false"/>
</f:subview>
</f:view>
when ever the page is rendered, im not getting the value for attribute header or content. its throwing java.lang.NullPointerException at org.apache.struts.taglib.tiles.InsertTag.processAttribute(InsertTag.java:689)
Below is my faces-config.xml
<?xml version="1.0"?>
<!DOCTYPE faces-config PUBLIC
"-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN"
"http://java.sun.com/dtd/web-facesconfig_1_0.dtd">
<faces-config>
<application>
<view-handler>org.apache.myfaces.application.jsp.JspTilesViewHandlerImpl</view-handler>
</application>
</faces-config>
Below is my web.xml
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<init-param>
<param-name>javax.faces.application.CONFIG_FILES</param-name>
<param-value>/ApplianceMgr/conf/faces-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>Tiles Servlet</servlet-name>
<servlet-class>org.apache.struts.tiles.TilesServlet</servlet-class>
<init-param>
<param-name>tiles-definitions</param-name>
<param-value>/ApplianceMgr/conf/tiles.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
Below is my tiles.xml
<tiles-definitions>
<definition name="main.template" path="/template/template.jsp" >
<put name="header" value="test from template" />
<put name="menu" value="test from template" />
</definition>

Please post the tiles-config.xml, layout and tiles.
Please refer
http://www.oracle.com/technology/pub/articles/vohra_tiles.html

Error can't load Servlet org.apache.struts.action.ActionServlet

Hi,
I have SAP J2EE 6.20 installed on linux machine. I am trying to deploy struts framework based application and while deploying it..... I am getting error message:
Error can't load Servlet org.apache.struts.action.ActionServlet : java.lang.NoClassDefFoundError: org/xml/sax/SAXException
07 19:27:48 - ***********************************************************
08/10/07 19:27:48 - Applying user role management mappings.
08/10/07 19:27:48 - Start updating EAR-file...D:\SAPJ2EE Client\deploying\sambodh\sambodh.ear
08/10/07 19:28:26 - Temp files deleted...
08/10/07 19:28:26 - Ear-file updated successfully for 37860ms.
08/10/07 19:28:27 - Start deploying ...
08/10/07 19:30:35 - Ear-file uploaded to server for 128047ms.
08/10/07 19:30:37 - Successfuly deployed! Deployment took 1953ms.
08/10/07 19:30:37 - WARNING : Deploy service return folowing WARNINGs:
Error can't load Servlet org.apache.struts.action.ActionServlet : java.lang.NoClassDefFoundError: org/xml/sax/SAXException
Deployment took 1953ms.
08/10/07 19:30:37 - ***********************************************************
First time when I got this error, I added struts.jar in my server's <inst_dir>/alone/additional_libs/...... but then also error still exists... Do I have to start SAP J2EE instance once again and then deploy my application?
Can anyone help me out in this as this is very very very imp.
regards

Hi,
As per your actions above I believe you have already found SAP Note 435363.
Basically for a struts application there are no special requirements other than
1. Make a reference to the inqmyxmltoolkit from the application that is going to use struts before the deployment
2. Put the struts library into WEB-INF/lib of the application (struts can't be shared among applications)
3. Deploy the application
For making the reference you can:
1. Telnet to the Engine (if you run it as a service and do not have access to its shell directly)
If telnet port on the Engine dispatcher is 2323
telnet localhost 2323
2. Jump to the server node
for example if the application node's cluster id is 4001
jump 4001
3. Execute the commands
add deploy
changeref -m MyApplication library:inqmyxml
So if it does not work, then I see two reasons possible:
1. You are using a really old version of the 6.20 Engine - check if you are on PL41.
2. You have misspelled the name of your application in the reference. The names are case sensitive so you need to be careful. MyApplication is not the same as myApplication or myapplication.
Regards,
Iavor

The import org.apache.struts.action.ActionError cannot be resolved

Hai anyone,. I' a newbie to struts and want to learn more. I download the example code, and run it. Hey, it work. But when I try to create it by myself by following the tutorial, I got stuck with my all java file when i want to try to compile it with eclipse.It say:
The import org.apache.struts.action.ActionError cannot be resolved
What' wrong?
this is one of the example code, i bolded the error line:
package dummies.struts.music;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.validator.DynaValidatorForm;
* @author Mike Robinson
public class LoginAction extends Action
     * Handles request from user
     * @param mapping
     * @param form
     * @param request
     * @param response
     * @throws Exception
     public ActionForward execute(      ActionMapping mapping,
                                             ActionForm form,
                                             HttpServletRequest request,
                                             HttpServletResponse response)
                                             throws Exception
          // did the user click the Join button?
          Boolean bCancel = (Boolean)request.getAttribute("org.apache.struts.action.CANCEL");
          if(bCancel != null)
               if(bCancel.booleanValue())
                    return (mapping.findForward("join"));
          // create a new LoginBean passing the datasource
          LoginBean lb = new LoginBean(getDataSource(request, "musiccollection"));
          // check to see if this user/password combination are valid
          // will return a non-null UserDTO if valid
          UserDTO user = lb.validateUser((String)((DynaValidatorForm)form).get("email"),
                                             (String)((DynaValidatorForm)form).get("password"));
          if(user != null)
               // save UserDTO in session
               request.getSession().setAttribute("user",user);
               return (mapping.findForward("success"));
          else     // username/password not validated
               // create ActionError and save in the request
               ActionErrors errors = new ActionErrors();
               ActionError error = new ActionError("error.login.invalid");
               errors.add("login",error);
               saveErrors(request,errors);
               return (mapping.findForward("failure"));
}

Hi i try to build a dynamic web project in eclipse europa version.so i have opned my eclipse editor then right click selected the dynamic web project.onceit is done i wated to add the servelt so i have selcted the sevlet pressed ok then given name for it,next create servlet here iam getting the error lke this
"An error occured when create servlet is finished" and in deatils it displyainf like thi
"java.lang.Error: Unresolved compilation problems:
     The import org.eclipse.jst.j2ee.internal cannot be resolved
     CreateServletTemplateModel cannot be resolved to a type
     CreateServletTemplateModel cannot be resolved to a type
     at org.eclipse.jst.j2ee.web.ServletTemplate.<init>(ServletTemplate.java:3)"
can any one help me here i have been stuck from morning doing nothing try to solve this problem
thank u in advance
vijay

Java.util.HashMap cannot be cast to org.apache.struts.action.ActionForm

Hi!
anybody could help me?
i am getting java.util.HashMap cannot be cast to org.apache.struts.action.ActionForm error when I run my jsp...
heres my code :
CommentAction.java
package com.provintl.rmis.actions;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sql.DataSource;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.provintl.rmis.forms.CommentForm;
public class CommentAction extends Action {
     Statement stmt = null;
     Connection con = null;
     javax.sql.DataSource dataSource;
     PreparedStatement ps = null;
     ResultSet rs=null;
     byte updFlg = 0;
     Map commentlist = new HashMap();
     /* (non-Javadoc)
     * @see org.apache.struts.action.Action#execute(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     @Override
     public ActionForward execute(ActionMapping mapping, ActionForm form,
               HttpServletRequest request, HttpServletResponse response)
     throws Exception {
          CommentForm commentForm = new CommentForm();
          Date date = commentForm.getDaterecord();
          String comment = commentForm.getComment();
          //TODO : temporary 1 == rose
          int userID =1;
          int appID =1;
          String SelectQry = "SELECT "+
                                   "APPLICANT_TBL.CHFNAME, "+
                                   "APPLICANT_TBL.CHLNAME, "+
                                   "APPLICANT_TBL.INTAPPID, "+
                                   "USERHST_TBL.CHCOMMENT, "+
                                   "USERHST_TBL.DTDATECREATED, "+
                                   " USERHST_TBL.INTHSTID "+
                                   "FROM "+
                                   "APPLICANT_TBL "+
                                   "INNER JOIN USERHST_TBL ON (APPLICANT_TBL.INTAPPID = USERHST_TBL.INTAPPID) " +
                                   "WHERE APPLICANT_TBL.CHFNAME ='"+request.getParameter("first")+"' " +
                                             "AND APPLICANT_TBL.CHLNAME ='"+request.getParameter("last")+"'";
          try {
               dataSource = (DataSource)getDataSource(request, "RMIS");
               con = dataSource.getConnection();
               con.setAutoCommit(false);
               stmt = con.createStatement();
               System.out.println("database connected");
               rs = stmt.executeQuery(SelectQry);
               System.out.println("database connected");
               int ctr = 1;
               while(rs.next()){
                    commentlist.put(ctr,new CommentForm(rs.getString("CHFNAME"),rs.getDate("DTDATECREATED")));
                    ctr++;
               if(updFlg !=0){
                    String insQry = "INSERT INTO RECRUIT.USERHST_TBL (CHCOMMENT, INTUSERID, INTAPPID)" +
                    "VALUES ('"+comment+"',"+userID+","+appID+")";
                    stmt.executeUpdate(insQry);
                    con.commit();
                    updFlg = 0;
               HttpSession session = request.getSession();
               session.setAttribute("commentlist", commentlist);
               //con.setAutoCommit(true);
          } catch (SQLException se) {
               System.out.println("We got an exception while preparing a statement:" +
               "Probably bad SQL.");
               System.out.println(SelectQry);
               se.printStackTrace();
               //System.exit(1);
          finally {
               try {
                    rs.close();
                    stmt.close();
                    con.close();
               } catch (SQLException e) {
                    e.printStackTrace();
          return mapping.findForward("comment");
commentform.jsp
=============
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html"     prefix="html"%>
<%@ taglib uri="http://java.sun.com/jstl/core_rt" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jstl/sql_rt" prefix="sql"%>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
<%@ 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">
<html>
<head>
<script>
function putLabel(lbl, formName){
if (opener && !opener.closed){
opener.document.addapp.jobposition.value=lbl;
window.close();
</script>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>List of open positions</title>
</head>
<body>
<h2>Job Positions Available</h2>
<%
int ctr = 1; %>
<logic:iterate id="myString" name="commentlist" scope="session">
<table width="100%" border="0">
<%
String bakcolor;
if((ctr % 2) == 0){
     bakcolor = "WHITE";
     ctr++;
else{
     bakcolor = "SILVER";
     ctr++;
%>
<tr><td bgcolor="<%= bakcolor %>">
<bean:write name="myString" property="value" />
</td></tr>
${commentlist}
</table>
</logic:iterate>
</body>
</html>
thank you in advance!

Shilnag wrote:
Hello guys,
I am new to java... I am trying to develop a web application using
1.Struts1.2
2.tomcat 5.5
3.eclipse 3.2.2Big mistake. Nobody new to Java should jump straight into webapps, let alone using a framework like Struts. Debatably, even Eclipse should be left alone.
It's precisely because of this that you're having problems. Presumably you're following a tutorial or something, but - as demonstrated - as soon as it goes wrong, you're stuck. Learn some core Java first, trust me

Javax.servlet.jsp.JspException: Cannot find bean: "org.apache.struts.taglib

Hi
i have a form from which i am gettin values and i am using struts to get those values and perform actions in my DAO,
i am able to retrieve values from DAO but the value is not gettin printed in front end.. its throwing
"javax.servlet.jsp.JspException: Cannot find bean: "org.apache.struts.taglib.html.BEAN" in any scope" error
got any suggestions
thankx

Got the solution,. i had closed my <html:form> before closing one of my <html:form>
thankx

Cannot find message resources under key org.apache.struts.action.MESSAGE ?

Hi All,
I am getting the following error.. while running a simple application in struts.
Cannot find message resources under key org.apache.struts.action.MESSAGE ?
As I have searched in google but could not find the concreate example so please help and give me a proper answer..
my struts-config.xml file is as .....
<code>
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.0//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd">
<struts-config>

<form-beans>
     <form-bean name="login" type="test.struts.LoginForm" />
</form-beans>

<global-forwards>
</global-forwards>

<action-mappings>
<action
     path="/login"
     type="test.struts.LoginAction"
     name="login"
     input="/jsp/LoginView.jsp"
     validate="true">
     <forward name="valid" path="/jsp/MainMenu.jsp" />
     <forward name="invalid" path="/jsp/LoginView.jsp" />
     </action>
</action-mappings>
<message-resources null="false" parameter="test.struts.MessageResources"/>
</struts-config>
</code>
And my LoginView.jsp file is as:
<code>

<%@ taglib uri="/struts/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/struts/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/struts/WEB-INF/struts-logic.tld" prefix="struts" %>
<HTML>
<HEAD><TITLE><bean:message key="title.login" /></TITLE></HEAD>
<BODY>
<bean:message key="heading.login" />
<html:errors />
<html:form action="/login">
     <p>
     <bean:message key="label.userId" />:
     <html:text property="userId" size="10" />
     <br>
     <bean:message key="label.passWord" />:
     <html:password property="passWord" size="10" />
     <br><br>
     <html:submit>
          <bean:message key="button.submit" />
     </html:submit>
</html:form>
</BODY>
</HTML>
</code>
MessageResources.properties is as :
<code>
button.submit=Send for Verification
error.no.userId=<li>User ID is a required field</li>
error.no.passWord=<li>Password is a required field</li>
error.invalid.login=<li>The User ID and/or Password are invalid. Please try again.</li>
errors.footer=</ul><hr>
errors.header=<h3><font color="red">Validation Error</font></h3>You must correct the following error(s) before proceeding:<ul>
label.userId=User ID
label.passWord=Password
heading.login=<H2>Enter your user information</H2>
title.login=Login Screen
title.mainmenu=Welcome
heading.mainmenu=<H1>Welcome!</H1>
label.userType=<H2>You are authorized to use this system as a</H2>
</code>
Please reply soon.
Thanks in advance
Amitindia

Hi All,
I am getting the following error.. while running a simple application in struts.
Cannot find message resources under key org.apache.struts.action.MESSAGE ?
As I have searched in google but could not find the concreate example so please help and give me a proper answer.. my struts-config.xml file is as .....
<?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE struts-
config PUBLIC "-//Apache Software Foundation//DTD Struts
Configuration 1.0//EN" "http://jakarta.apache.org/struts/dtds/struts-
config_1_0.dtd"> <struts-config>  <form-beans> <form-bean name="login"
type="test.struts.LoginForm" /> </form-beans>  <global-forwards> </global-
forwards>  <action-mappings> <action path="/login" type="test.struts.LoginAction" name="login" input="/jsp/LoginView.jsp" validate="true"> <forward name="valid" path="/jsp/MainMenu.jsp" /> <forward name="invalid" path="/jsp/LoginView.jsp" /> </action> </action-mappings> <message-resources null="false" parameter="test.struts.MessageResources"/> </struts-config>
And my LoginView.jsp file is as:
 <%@ taglib uri="/struts/WEB-INF/struts-html.tld" prefix="html" %> <%@ taglib uri="/struts/WEB-INF/struts-bean.tld" prefix="bean" %> <%@ taglib uri="/struts/WEB-INF/struts-logic.tld" prefix="struts" %> <HTML> <HEAD><TITLE><bean:message key="title.login" /></TITLE></HEAD> <BODY> <bean:message key="heading.login" /> <html:errors /> <html:form action="/login">
<bean:message key="label.userId" />: <html:text property="userId" size="10" /> <br> <bean:message key="label.passWord" />: <html:password property="passWord" size="10" /> <br><br> <html:submit> <bean:message key="button.submit" /> </html:submit> </html:form> </BODY> </HTML>
MessageResources.properties is as :
button.submit=Send for Verification error.no.userId=<li>User ID is a required field</li> error.no.passWord=<li>Password is a required field</li> error.invalid.login=<li>The User ID and/or Password are invalid. Please try again.</li> errors.footer=</ul><hr> errors.header=<h3><font color="red">Validation Error</font></h3>You must correct the following error(s) before proceeding:<ul> label.userId=User ID label.passWord=Password heading.login=<H2>Enter your user information</H2> title.login=Login Screen title.mainmenu=Welcome heading.mainmenu=<H1>Welcome!</H1> label.userType=<H2>You are authorized to use this system as a</H2>
Please reply soon. Thanks in advance Amitindia

Proxying servlets and JSPs with apache

We have a couple of servlets within our application, the rest of it
being JSPs.
We are having a problems maintaining the session state across links from
the JSPs to the servlets. It works fine with WL as the web server when
the servlet picks up the same session as the JSPs, but when we are using
the apache bridge, the servlet seems to have a new session.
We are using WL5.1.0 SP6 on solaris.
The JSPs are proxied by extension, and the servlets by location -
everything under the servlet directory being directed to a servlet.
Is there anything we need to do in the configuration to allow this to
work?
Thanks,
Steve

Core Servlets is pretty good. I have both parts.
One day I'm actually going to read them.you mean these two right?
Core Servlets and Javaserver Pages: Core Technologies, Vol. 2 (2nd Edition) (Core) by Marty Hall, Larry Brown, and Yaakov Chaikin
Core Servlets and JavaServer Pages, Vol. 1: Core Technologies, Second Edition by Marty Hall and Larry Brown
I should buy the Vol 1 first right?

Difference between Java Server Faces and Apache Struts

Hi ,
I'm quite new to Java Server Faces and Apache Struts. I wonder are they two comparable Frameworks for web presentation?
And can anybody elaborate please, if they differ in what aspects?
Thanks
Jaffar Shaikh

Here are slides from a presentation by Craig McClanahan that compares them (I believe you can search for other articles on this topic): http://www.baychi.org/calendar/files/Struts-And-Faces/Struts-And-Faces.pdf

Apache web server / run Servlets and JSP

Hello. I need to know how to run servlets and JSP's with Apache web server

install Tomcat and use it alongise of apache. Apache cannot serve either servlets or jsp's on its own

Servlet and Actions - Apache Struts !

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