Struts2 HelloWorld实现

浅浅的花香味﹌ 2022-06-05 00:07 229阅读 0赞

1、创建javaweb项目 并且导入需要的包（此处用的是Struts2.3）![SouthEast][]

2、创建web.xml配置文件 并且完成配置

<?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>Struts Blank</display-name>
    
        <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>
    
        <welcome-file-list>
            <welcome-file>index.jsp</welcome-file>
        </welcome-file-list>
    
    
    </web-app>

3、创建cn.xm.action包并且在其中创建HelloAction类

package cn.xm.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    public class HelloAction extends ActionSupport{ 
        @Override
        public String execute() throws Exception {
            // TODO Auto-generated method stub
            return SUCCESS;
        }
    
    }

4、在src下创建struts.xml配置文件

<?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="false" />
        <constant name="struts.devMode" value="true" />
    
        <package name="default" namespace="/" extends="struts-default">
    
            <action name="Hello" class="cn.xm.action.HelloAction">
            <result name = "success">show.jsp</result>
    
            </action>
    
        </package>
    
    </struts>

4、在WebContent下创建show.jsp

<%@ 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>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <title>Insert title here</title>
    </head>
    <body>
    HelloWorld!
    </body>
    </html>

5、在tomcat上启动该项目 在url中输入地址得到HelloWorld！![这里写图片描述][SouthEast 1]

[SouthEast]: /images/20220605/20c982e42dbd4b5891f8bc59177fcbb0.png
[SouthEast 1]: /images/20220605/12b99b0b51e845bb81e6b7fe52b36066.png