HelloWorldAction.java:
package com.imooc.action;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.apache.struts2.util.ServletContextAware;
import com.opensymphony.xwork2.ActionSupport;
public class HelloWorldAction extends ActionSupport implements ServletRequestAware,ServletResponseAware,ServletContextAware{
private HttpServletRequest request;
public String add(){
return SUCCESS;
}
public String update(){
return SUCCESS;
}
@Override
public String execute() throws Exception {
System.out.println("执行action");
return SUCCESS;
}
@Override
public void setServletResponse(HttpServletResponse arg0) {
}
@Override
public void setServletRequest(HttpServletRequest request) {
this.request=request;
}
@Override
public void setServletContext(ServletContext arg0) {
}
}
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>
<package name="default" namespace="/" extends="struts-default">
<action name="helloworld" class="com.imooc.action.HelloWorldAction">
<result>/result.jsp</result>
</action>
<action name="addAction" method="add"
class="com.imooc.action.HelloWorldAction">
<result>/add.jsp</result>
</action>
<action name="updateAction" method="update"
class="com.imooc.action.HelloWorldAction">
<result>/update.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://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>test</display-name>
<welcome-file-list>
<welcome-file>index.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>
add.jsp:
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<html>
<head>
<title></title>
</head>
<body>
this is add.jsp
</body>
</html>
update.jsp:
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<html>
<head>
<title></title>
</head>
<body>
this is update.jsp
</body>
</html>
result.jsp:
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<html>
<head>
<title></title>
</head>
<body>
this is result.jsp
</body>
</html>
http://localhost:8080/test/helloworld.action能正常显示。
http://localhost:8080/test/addAction.action和http://localhost:8080/test/updateAction.action出现错误信息；
HTTP Status 404 - There is no Action mapped for namespace [/] and action name [helloworld_add] associated with context path [/test].
和
HTTP Status 404 - There is no Action mapped for namespace [/] and action name [updateAction] associated with context path [/test].
