Struts2: can't call action before rendering index.jsp - struts2

I've searched for this all over SO, but didn't find a similar situation with the same symptoms. I'm using Sruts2 and trying to invoke an action before rendering the main page of my application (index.jsp). I truly believe that this action is not being called, because I have a System.out.println() (for debugging purposes) in the beginning of the execute() method of the action that is not being printed. Indeed index.jsp is being presented (because it is the default page), but the part that is related to the action is not being run. In conclusion, I think that the problem may reside in the struts.xml file. Below are both the struts.xml and the action file:
Struts.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!-- The core configuration file for the framework is the default (struts.xml) file
and should reside on the classpath of the webapp (generally /WEB-INF/classes). -->
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<!-- devMode equals debug information and reload everything for every request -->
<constant name="struts.devMode" value="true" />
<constant name="struts.ui.theme" value="simple" />
<package name="faultinjector" extends="struts-default">
<default-action-ref name="loadexperiments" />
<action name="loadexperiments" class="faultinjector.action.LoadExperimentsAction" method="execute">
<result name="success">/index.jsp</result>
</action>
</package>
</struts>
LoadExperimentsAction.java:
public class LoadExperimentsAction extends ActionSupport
{
private static final long serialVersionUID = 4L;
private ExperimentService service;
private List <Experiment> experiments;
#Override
public String execute()
{
System.out.println("Hello!");
return SUCCESS;
}
public ExperimentService getService()
{
return service;
}
public void setService(ExperimentService service)
{
this.service = service;
}
public List<Experiment> getExperiments()
{
return experiments;
}
public void setExperiments(List<Experiment> experiments)
{
this.experiments = experiments;
}
}

I finally managed to achieve what I was looking for, without the need of redirecting pages. Basically the solution is to keep my original configuration, but changing the JSP page name from "index.jsp" to another one (in my case, it is now called "user_main".jsp). This way, it oddly works, I guess it has some hidden default configuration parameter when using the default name "index.jsp". Content of my configuration files:
web.xml:
<web-app id="faultinjector" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
struts.xml:
<struts>
<constant name="struts.devMode" value="true" />
<constant name="struts.ui.theme" value="simple" />
<package name="faultinjector" extends="struts-default">
<default-action-ref name="loadexperiments" />
<action name="loadexperiments" class="faultinjector.action.LoadExperimentsAction" method="execute">
<result name="success">/user_main.jsp</result>
</action>
</package>
</struts>

Related

Struts2 keep same action url if validation fail using struts2-bean-validation-plugin

I am using Struts 2 and I have two action one will show the register form and second will be register user.
I want to achieve is while submitting form if any validation fail then user will be redirect to previous page with errors details.
I have use struts2-bean-validation-plugin for validating user bean.
My configuration files are as below
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<constant name="struts.objectFactory" value="spring" />
<package name="default" extends="struts-default">
<interceptors>
<interceptor name="beanValidation" class="org.apache.struts.beanvalidation.validation.interceptor.BeanValidationInterceptor" />
<interceptor-stack name="appDefaultStack">
<interceptor-ref name="beanValidation"/>
<interceptor-ref name="defaultStack"/>
</interceptor-stack>
</interceptors>
<action name="userRegisterForm" method="userRegisterForm" class="com.pc.collabtest.actions.UserRegisterAction">
<result name="success">/userRegisterForm.jsp</result>
</action>
<action name="userRegister" method="userRegister" class="com.pc.collabtest.actions.UserRegisterAction" >
<interceptor-ref name="appDefaultStack"/>
<result name="userList" type="redirectAction">userList</result>
<result name="userRegisterForm" type="redirectAction">userRegisterForm</result>
<result name="input" type="redirectAction">userRegisterForm</result>
</action>
</package>
</struts>
And Action class is
package com.pc.collabtest.actions;
import javax.validation.Valid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.opensymphony.xwork2.ActionSupport;
import com.pc.collabtest.model.User;
import com.pc.collabtest.service.UserService;
import lombok.extern.slf4j.Slf4j;
#Slf4j
#Component
public class UserRegisterAction extends ActionSupport {
private static final long serialVersionUID = 1L;
#Valid
public User user;
#Autowired
private UserService userService;
public String userRegisterForm() throws Exception {
return "success";
}
public String userRegister() throws Exception {
if (user != null) {
if(userService.saveUser(user) != null) {
return "userList";
}
}
return "userRegisterForm";
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
}
Actually I need some configuration changes in struts.xml file you can see I have create two package as I don't need validation in every action i.e showing registration form doesn't need any validation where submit registration form needed. so I put u userRegister action in struts-bean-validation package. and whenever userRegister(submit) action return input result because of validation fail we will redirect userRegisterForm to show registration form but at this point struts will create new request object so we will loose error result so for that we use struts default interceptor store with operation mode STORE which will store error result in session and in userRegisterForm action again we use store interceptor but with operation mode RETRIEVE so that struts will fetch error result from session.
Note here you can see I use beanValidationDefaultStack interceptor which is mention in struts2-bean-validation-plugin.jar struts-plugin.xml file. because what I assume if we use interceptor then struts will now use default interceptor.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<constant name="struts.objectFactory" value="spring" />
<package name="default" extends="struts-default">
<action name="userRegisterForm" method="userRegisterForm" class="com.pc.collabtest.actions.UserRegisterAction">
<interceptor-ref name="store"><param name="operationMode">RETRIEVE</param></interceptor-ref>
<result name="success">/userRegisterForm.jsp</result>
</action>
</package>
<package name="my-bean-validation" extends="struts-bean-validation">
<action name="userRegister" method="userRegister" class="com.pc.collabtest.actions.UserRegisterAction">
<interceptor-ref name="store"><param name="operationMode">STORE</param></interceptor-ref>
<interceptor-ref name="beanValidationDefaultStack"></interceptor-ref>
<result name="userList" type="redirectAction">userList</result>
<result name="userRegisterForm" type="redirectAction">userRegisterForm</result>
<result name="input" type="redirectAction">userRegisterForm</result>
</action>
</package>
</struts> ```

Include struts 1 and Struts 2 in same web application [duplicate]

I am new to Struts 2 and I have been following a video tutorial on Struts 2(Koushik). I have created the Struts.xml, the action class and JSPs as same as created in the tutorial. But it gives the following exception.
Exception:
Jan 13, 2014 9:30:48 PM org.apache.struts2.dispatcher.Dispatcher warn
WARNING: Could not find action or result: /Struts2Starter/getTutorial.action
There is no Action mapped for namespace [/] and action name [getTutorial] associated with context path [/Struts2Starter]. - [unknown location]
at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
at org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)
at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:552)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default">
<action name="getTutorial" class="org.koushik.javabrains.action.TutorialAction">
<result name="success">/success.jsp</result>
<result name="error">/error.jsp</result>
</action>
</package>
</struts>
Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>Struts2Starter</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
TutorialAction.java (Action class that I'm using)
package org.koushik.javabrains.action;
public class TutorialAction {
public String execute(){
System.out.println("Hello from execute");
return "success";
}
}
Project structure
success.jsp and error.jsp are normal jsp files with some text. I did a lot of things to resolve this issue by googling. But nothing didn't solve this. Please let me know if anyone knows what's behind this. I highly appreciate it. :)
Renaming Struts.xml naming convention to struts.xml will work.
The message from error clearly says that
no Action mapped for namespace [/] and action name [getTutorial]
associated with context path [/Struts2Starter]
This means that action configuration is not available at runtime. Check out the config-browser plugin to debug configuration issues.
To map correctly url to the action two parameters are required: the action name and namespace.
Struts loads xml configuration on startup and it should know the location of the struts.xml. By default it's looking on classpath to find a file with known name like struts.xml. Then it parses document and creates a runtime configuration. This configuration is used to find appropriate configuration element for the action url. If no such element is found during request, the 404 error code is returned with the message: There is no Action mapped for namespace and action name.
Also this message contains a namespace and action names used to find the action config. Then you can check your configuration settings in struts.xml. Sometimes the action name and namespace, stored in ActionMapping point to the wrong action. These values are determined by the ActionMapper which could have different implementation, used by plugins.
There's also another setting that might affect this mapper and mapping, but the point is the same if you get this message then URL is used didn't map any action config in runtime configuration. If you can't realize which URL you should use, you might try config-browser plugin to see the list of URLs available to use.
change your Struts.xml and put <constant name="struts.devMode" value="true" /> in struts.xml Development mode or devMode it enables extra debugging and helps indebugging
try below code
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="default" namespace="/" extends="struts-default">
<action name="getTutorial" class="org.koushik.javabrains.action.TutorialAction">
<result name="success">/success.jsp</result>
<result name="error">/error.jsp</result>
</action>
</package>
</struts>
U just need to check that action name is constant everywhere...i also had same problem i resolved by removing namespace as it is not necessary which i see u have not mentioned and also i had different action name at loginpage.jsp and struts.xml page.. so just see ur action name
Your JSP file should not be under the WEB-INF folder, but should be under the web folder. I've attached an image to show you the right hierarchy.
Folder System

Struts 2 Portlet - redirectAction not working, doView() not called

I'm trying to create a simple Struts 2 JSR 286 Portlet, running on WebSphere Portal 7. I'm able to display a simple JSP that contains a link which calls an action and displays another JSP which accepts input. That works fine.
I start to run into problems, however, when I try to use a redirectAction. I don't see any error messages, but the redirect doesn't seem to work. The Portlet just shows a blank page.
In debugging this I noticed that the doView method of my Portlet class is never called, which seems very suspicious.
If anyone has experience developing Struts 2 Portlets on WebSphere Portal, I would appreciate some help in checking that my config files are correct. Have I missed something?
Here are the details:
WebSphere Portal 7.0.0.2
WebSphere Application Server 7.0.0.25
RAD 8.0.4
Struts 2.3.14.2
Windows 7
portlet.xml:
<?xml version="1.0" encoding="UTF-8"?>
<portlet-app id="com.ibm.demo.jsr286.TopUpPortlet.72594d5fe3"
version="2.0"
xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd">
<portlet>
<description xml:lang="EN">Demo JSR 286 Struts Portlet</description>
<portlet-name>Demo Portlet</portlet-name>
<display-name>Demo Portlet</display-name>
<!-- DemoPortlet extends org.apache.struts2.portlet.dispatcher.Jsr286Dispatcher -->
<portlet-class>com.demo.jsr286.DemoPortlet</portlet-class>
<init-param>
<name>viewNamespace</name>
<value>/view</value>
</init-param>
<init-param>
<name>defaultViewAction</name>
<value>index</value>
</init-param>
<expiration-cache>0</expiration-cache>
<supports>
<mime-type>text/html</mime-type>
<portlet-mode>view</portlet-mode>
</supports>
<supported-locale>en</supported-locale>
<portlet-info>
<title>Demo Portlet</title>
<short-title>DemoPortlet</short-title>
<keywords>Demo Portlet</keywords>
</portlet-info>
</portlet>
<default-namespace>http://JSR286StrutsDemo/</default-namespace>
</portlet-app>
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" 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">
<display-name>JSR 286 Struts Demo</display-name>
<servlet id="Struts2PortletDispatcherServlet">
<servlet-name>Struts2PortletDispatcherServlet</servlet-name>
<servlet-class>org.apache.struts2.portlet.dispatcher.DispatcherServlet</servlet-class>
</servlet>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<include file="struts-plugin.xml"/>
<package name="view" extends="struts-portlet-default" namespace="/view">
<!-- This action works -->
<action name="index">
<result>/html/view/index.jsp</result>
</action>
<!-- This action works -->
<action name="startDemo">
<result>/html/view/demo.jsp</result>
</action>
<!-- This action does not work -->
<action name="redirectToIndex">
<result type="redirectAction">
<param name="actionName">index</param>
<param name="namespace">/view</param>
<param name="portletMode">view</param>
</result>
</action>
</package>
</struts>
* Update *
I've narrowed the problem down slightly. It looks like the action is being interpreted as a file location rather than a struts action. So, when I call action "redirectToIndex" it tries to display a page called "/view/index.action". I verified this by creating a file with that path and sure enough, the contents of that file are displayed in the portlet.
I feel that I'm probably missing some configuration option, but I'm not sure what. Servlet filter maybe? Can anyone help?
Actually you don't need doView method, because Jsr286Dispatcher is just a dispatcher. You can use actions like in ordinary Struts2 application.
From the documentation:
The portlet-class element is always org.apache.struts2.portlet.dispatcher.Jsr168Dispatcher (or a subclass, if you have added some custom functionality). This is the portlet that acts as the dispatcher for the Struts 2 framework, and translates incoming user interaction to action requests that Struts 2 understands.
For jsr286 specification <portlet-class> should be org.apache.struts2.portlet.dispatcher.Jsr286Dispatcher and defaultViewAction init-param will call Struts2 action. And in struts.xml file, like usually, you can define action class + method to call.
So you need to define Jsr286Dispatcher as <portlet-class> and create action which you will use in struts.xml action definitions.
Also see this two links: http://struts.apache.org/development/2.x/docs/struts-2-portlet-tutorial.html and http://struts.apache.org/development/2.x/docs/portlet-plugin.html.

struts 2 - action class is not mapped

I am starting to study struts 2. I followed the example here.
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package extends="struts-default">
<action name="hello"
class="com.tutorialspoint.struts2.HelloWorldAction"
method="execute">
<result name="success">/HelloWorld.jsp</result>
</action>
</package>
</struts>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>HelloWorld3</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
index.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h1>Struts2</h1>
<form action="hello">
<label for="name">Please enter your name</label><br/>
<input type="text" name="name"/>
<input type="submit" value="Say Hello"/>
</form>
</body>
</html>
HelloWorldAction.java
package com.tutorialspoint.struts2;
public class HelloWorldAction{
private String name;
public String execute() throws Exception {
return "success";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
But after running and submitting the form, 404 error occurs.
type: Status report
message: /HelloWorld3/hello
description:The requested resource (/HelloWorld3/hello) is not available.
It does not produce any error in the console. I think the action class is not getting mapped. I know this kind of error is common to all struts beginners but I swear I've been googling this since yesterday.
struts.xml is inside /src/, I also tried putting it inside WEB-INF/classes, still got no luck.
I'm using eclipse gallileo and tomcat 6 inside it.
Replies are really appreciated.
My bad, just realized the web.xml is not the same with the web.xml in the tutorial. Also I forgot to specify the package name in struts.xml. After correcting these, I then encountered an error in the console,
java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils
To solve this problem I added commons-lang3-x.y in the WEB-INF/lib directory together with other jars required by the tutorial to be added.
your class could extend ActionSupport class or Action Interface then only it will become an action class. And no need call the method execute explicitly by default it will call execute method. If you were overriding it you need to mention that method name.
And it's not mandatory to use ActionSupport class. This is basically a helper class which provides many out of the box features for you, but at same time Struts2 framework do not ask to use this class, all it want is an entry method for your action class with return type as String and which can throw a general Exception
beside validation or Internationalization this class also provides many other features like Action level Errors etc.
<action name="hello"
class="com.tutorialspoint.struts2.HelloWorldAction">
package com.tutorialspoint.struts2;
public class HelloWorldAction extends ActionSupport{
private String name;
public String execute() throws Exception {
return "success";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
add commons-lang3.x.y.z jar and commons-fileupload-x.y.z jar to your buildpath to avoid 'resource not available' error
http://viralpatel.net/blogs/tutorial-create-struts-2-application-eclipse-example/
You can get the Simple Struts 2 Example Demo with the jar files.

problems with struts 2 developing login [duplicate]

This question already has answers here:
"The Struts dispatcher cannot be found" error while deploying application on WebLogic 12.1.3
(2 answers)
Closed 6 years ago.
I have several problems and I would if someone can help me to solve this with Struts 2. This is the problem I have. When I run my simple Login Application I have this mistake:
org.apache.jasper.JasperException: The Struts dispatcher cannot be found.
This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
The log is this one:
Advertencia: StandardWrapperValve[jsp]: PWC1406: Servlet.service() for servlet jsp threw exception
The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
at org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:60)
at org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:44)
at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:48)
at org.apache.jsp.Login_jsp._jspx_meth_s_form_0(Login_jsp.java:99)
at org.apache.jsp.Login_jsp._jspService(Login_jsp.java:72)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
The file tree is this one:
src(es.uniway.action.login as a package and inside this class:
LoginAction.java:
package com.uniway.action.login;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport{
#Override
public String execute() throws Exception {
// TODO Auto-generated method stub
return SUCCESS;
}
}
As well inside of the src I have the struts.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<constant name="struts.devMode" value="false" />
<package name="default" namespace="/" extends="struts-default">
<action name="Login" class="com.uniway.action.LoginAction">
<result name="input">/Login.jsp</result>
<result name="success" type="redirectAction">/index.jsp</result>
</action>
</package>
<!-- Add packages here -->
</struts>
Then at web-info folder I have the web.xml which I have this thing:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>cloud46</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>Login.jsp</welcome-file>
</welcome-file-list>
</web-app>
And after that at WebContent I have index.jsp and Login.jsp which I have this code:
<%# page contentType="text/html; charset=UTF-8" %>
<%# taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>Sign On</title>
</head>
<body>
<s:form action="Login.action">
<s:textfield key="username"/>
<s:password key="password" />
<s:submit method="execute"/>
</s:form>
</body>
</html>
And the libraries at the lib folder inside of the WEB-INF are : asm-3.3.jar, asm-commons-3.3.jar, asm-tree-3.3.jar, commons-fileupload-1.2.2.jar, commons-io-2.0.1.jar, commons-lang3-3.1.jar, freemarker-2.3.19.jar, javassist-3.11.0.GA.jar, ognl-3.0.5.jar
, struts2-core-2.3.3.jar, xwork-core-2.3.3.jar . Please, what I'm doing wrong?
Do this
Change
<action name="Login" class="com.uniway.action.LoginAction">
<result name="input">/Login.jsp</result>
<result name="success" type="redirectAction">/index.jsp</result>
</action>
To
<action name="Login" class="com.uniway.action.LoginAction">
<result name="input">/Login.jsp</result>
<result name="success">/Login.jsp</result>
</action>
Change this
<s:form action="Login.action">
To
<s:form namespace="/" action="Login">
Next
Change
<s:submit method="execute"/>
To
<s:submit value="Login"/>
I had this problem with my 404.jsp page and this was my solution:
We should not use <s: tags in 404.jsp!!!
I don't know why, but this solved my problem!

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