1. 程式人生 > >第一講:1 struts2的介紹和helloworld實現

第一講:1 struts2的介紹和helloworld實現

struts2介紹: 主頁:http://struts.apache.org/ 在使用者請求和模組化處理方面以及頁面的展現這塊,Struts2 發揮的屌炸天作用; 相對於傳統的 Jsp+Servlet 模式,Struts2 更適合企業級團隊開發,方便系統的維護; 最新版本:2.3.161,新建專案HeadFirstStrust2chapter1,tomcat7,2.5,新增web.xml;匯入核心包(共8個,下載地址:連結:https://pan.baidu.com/s/19y5_AwxcePxVyDLMba-YAw 密碼:s9qr), 2,在web.xml中新增核心控制器, <?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_2_5.xsd" id="WebApp_ID" version="2.5">   <display-name>HeadFirstStruts2chapter01</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>3,在src下,新增struts2.xml配置檔案,寫package標籤,
<?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="suibiandingyi" extends="struts-default">     </package> </struts>4,建包www.cruise.action包,建類:HelloWorldAction,實現Action
package com.cruise.action;import com.opensymphony.xwork2.Action;public class HelloWorldAction implements Action{     @Override     public String execute() throws Exception {        System.out.println("struts2的預設的方法執行了");        return "success";     } }5,在struts2中,繼續寫標籤<action>, <?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="suibiandingyi" extends="struts-default">     <action name="hello" class="com.cruise.action.HelloWorldAction">        <result name="success">helloworld.jsp</result>     </action> </package> </struts>6,WebContent下寫helloworld.jsp,修改編碼格式為UTF-8 <%@ page language="java" contentType="text/html; charset=UTF-8"     pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> 你好:歡迎來到Cruise技能學習網! </body> </html>