1.向lib文件夹中配置8种struts2的核心jar包。
配置web.xml文件
注意：因为报错我将xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
中的javaee改为j2ee
然后在第二行加入了<!DOCTYPE xml>
解释： org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
此行为核心语句
<url-pattern>/*</url-pattern>拦截器
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE xml> <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/j2ee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>Struts2Chap01</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>
下一步配置struts.xml文件
<action name="hello" class="com.java1234.action.HelloWorldAction">hello作为地址栏可访问的的名字，
class="com.java1234.action.HelloWorldAction"然后访问这个路径下的文件，这个文件返回一个success的值
然后接收，访问helloWorld.jsp文件
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE struts PUBLIC 3 "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" 4 "http://struts.apache.org/dtds/struts-2.0.dtd"> 5 6 <struts> 7 8 <package name="helloWorld" extends="struts-default"> 9 <action name="hello" class="com.java1234.action.HelloWorldAction"> 10 <result name="success">helloWorld.jsp</result> 11 </action> 12 13 14 </package> 15 16 </struts>
类文件HelloWorldAction.java文件
1 package com.java1234.action; 2 3 import com.opensymphony.xwork2.Action; 4 5 public class HelloWorldAction implements Action{ 6 7 @Override 8 public String execute() throws Exception { 9 System.out.println("执行了Action的默认方法"); 10 return SUCCESS; 11 } 12 13 }
最后写被执行的helloWorld.jsp文件
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>Insert title here</title> 8 </head> 9 <body> 10 Struts2大爷你好！ 11 </body> 12 </html>
