Struts2初步案例

来源：互联网发布：qq空间模拟登录 php 编辑：程序博客网时间：2024/06/04 18:53

Struts环境搭建

1. Struts2部署      1.引入jar包        struts2-core.jar   核心jar包        xwork.jar   核心jar包        javasist-GA   处理字节码      2.web.xml          <filter>              <filter-name>struts2</filter-name>              <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>          </filter>          <filter-mapping>              <filter-name>struts2</filter-name>              <url-pattern>/*</url-pattern>          </filter-mapping>        核心过滤器名称  StrutsPrepareAndExcuteFlter      3.view视图页面      4.编写action         1.UserAction implement Action         2.UserAction extends ActionSupport      5.struts.xml      6.部署运行

po:

public class Userinfo {    private String uname;    private String upwd;    public String getUname() {        return uname;    }    public void setUname(String uname) {        this.uname = uname;    }    public String getUpwd() {        return upwd;    }    public void setUpwd(String upwd) {        this.upwd = upwd;    }}

Action:

public class TestAction01 implements Action {    private Userinfo user;    private String message;    public String getMessage() {        return message;    }    public void setMessage(String message) {        this.message = message;    }    public Userinfo getUser() {        return user;    }    public void setUser(Userinfo user) {        this.user = user;    }    public String execute() throws Exception {        this.setMessage("你好：" + this.user.getUname());        HttpSession session= ServletActionContext.getRequest().getSession();        return "success";    }}

struts.xml:

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC        "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"        "http://struts.apache.org/dtds/struts-2.5.dtd"><struts>    <!--支持动态方法调用-->    <constant name="struts.enable.DynamicMethodInvocation" value="false"/>    <!--修改struts.xml 不用重启容器-->    <constant name="struts.devMode" value="true"/>    <package name="default" namespace="/" extends="struts-default">        <default-action-ref name="index"/>        <!--<global-results>            <result name="error">/WEB-INF/jsp/error.jsp</result>        </global-results>-->        <!-- <global-exception-mappings>             <exception-mapping exception="java.lang.Exception" result="error"></exception-mapping>         </global-exception-mappings>-->        <action name="helloWord" class="cn.ljl.action.TestAction01">            <result name="success">first.jsp</result>        </action>    </package></struts>

first.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %><%@ taglib uri="/struts-tags" prefix="s"%><html><head>    <title>Struts</title></head><body><h2>Struts2 第一个案例</h2><s:property value="message"></s:property><form action="helloWord" method="post">    用户名：<input name="user.uname"/>    <input type="submit" value="提交"/></form></body></html>

index.jsp:

<html><body><h2>Struts2 第一个案例</h2><form action="helloWord" method="post">    用户名：<input name="uname"/>    <input type="submit" value="提交"/></form></body></html>

web.xml:

<!DOCTYPE web-app PUBLIC        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"        "http://java.sun.com/dtd/web-app_2_3.dtd" ><web-app>    <display-name>Archetype Created Web Application</display-name>    <filter>        <filter-name>struts2</filter-name>        <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>struts2</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>    <welcome-file-list>        <welcome-file>first.jsp</welcome-file>    </welcome-file-list></web-app>

运行结果

阅读全文

0 0