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  • Struts2环境搭建和运用

    一、解压struts-2.3.31apps路径下struts2-blank.rar文件。将其中WEB-INFl路径下的lib中的包和web.xml文件复制到新项目中的WEB-INF路径下。web.xml中的配置如下:

    <?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.html</welcome-file>
        </welcome-file-list>
    
    </web-app>

    二、struts2-blank.rar解压文件src中的strus.xml文件复制到新项目中的src目录下,配置如下:

    <?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="index" class="com.itnba.maya.controller.IndexAction">//class中路径与对应控制接收数据的类
                <result>//与IndexAction中return对应,当return success时,name可以不填
                  index.jsp//跳转到index.jsp页面
                </result>
                <result name="error">//当return error时
                  index_error.jsp
                </result>
                <result name="haha">//自定义的 return "haha"
                  index_haha.jsp
                </result>
            </action>
            <action name="home">
                 <result>
                  home.jsp
                 </result>
            </action>
        </package>
        
        <!-- Add packages here -->

    在src路径下建立一个包com.itnba.maya.controller,在其中建立一个IndexAction类配置如下:

    package com.itnba.maya.controller;

    import com.opensymphony.xwork2.ActionSupport;

    public class IndexAction extends ActionSupport {
    private String msg;//用get 来接收传过来的值
    public String getMsg() {
    return msg;
    }
    public void setMsg(String msg) {
    this.msg = msg;
    }
    @Override
    public String execute() throws Exception {
    // TODO 自动生成的方法存根
    return SUCCESS;
    }
    }

     建两个jsp页面index.jsp  reg.jsp

    reg.jsp如下

    <%@ 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>
    <form action="index" method="post">
    输入<input type="text" name="msg"><br>
    <input type="submit">
    </form>
    </body>
    </html>

    index.jsp如下:

    <%@ 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>
    this is index.jsp
    ${msg }
    </body>
    </html>

    运行reg.jsp 输入 hello world

    提交结果如下

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  • 原文地址:https://www.cnblogs.com/ermeng/p/6542556.html
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