struts2 框架的基本使用

<?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_3_0.xsd"

         id="WebApp_ID" version="3.0">

    <!-- 配置struts2 的拦截路径 -->

    <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>

    <!-- END 配置struts2 的拦截路径 -->

</web-app>

<?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.action.extension" value=",action,do" /> -->

    <constant name="struts.devMode" value="true" />

    <!-- http://localhost:8080/lf/dev_thing -->

    <package name="myPackage" namespace="/lf"  extends="struts-default">

        <!-- 配置拦截器 -->

        <interceptors>

            <!-- 拦截器有三种 -->

            <interceptor name="loginInterceptor" class="cn.zr.struts2.interceptor.LoginInterceptor"/>

            <interceptor name="twoInterceptor" class="cn.zr.struts2.interceptor.TwoInterceptor"/>

            <interceptor name="threeInterceptor" class="cn.zr.struts2.interceptor.ThreeInterceptor"/>

            <interceptor-stack name="testStack">

                <interceptor-ref name="defaultStack" />

                <interceptor-ref name="loginInterceptor"/>

                <interceptor-ref name="threeInterceptor"/>

                <interceptor-ref name="twoInterceptor">

                    <param name="excludeMethods">thing</param>

                    <param name="includeMethods">update</param>

                </interceptor-ref>

            </interceptor-stack>

        </interceptors>

        <!-- 换掉默认拦截器 -->

         <default-interceptor-ref name="testStack"/>

        <action name="dev_*" class="cn.zr.struts2.action.LoginAction" method="{1}" >

            <!-- 视图 -->

            <result name="page" type="dispatcher">

                /WEB-INF/jsp/login.jsp

            </result>

        </action>

        <action name="test_*" class="cn.zr.struts2.action.Register" method="{1}" >

            <result name="lf" type="dispatcher">

                /WEB-INF/jsp/register.jsp

            </result>

        </action>

        <action name="inf_*" class="cn.zr.struts2.action.InfoAction" method="{1}" >

            <result name="info" type="dispatcher">

                /WEB-INF/jsp/info.jsp

            </result>

        </action>

    </package>

</struts>

<?xml version="1.0" encoding="UTF-8"?>

<!--  log4j2.xml文件配置-->

<Configuration>

    <Appenders>

        <Console name="STDOUT" target="SYSTEM_OUT">

            <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>

        </Console>

    </Appenders>

    <Loggers>

        <Logger name="com.opensymphony.xwork2" level="debug"/>

        <Logger name="org.apache.struts2" level="debug"/>

        <Root level="warn">

            <AppenderRef ref="STDOUT"/>

        </Root>

    </Loggers>

</Configuration>

package cn.zr.struts2.action;

import cn.zr.struts2.pojo.User;

public class InfoAction extends SuperAction{

    private User user;

    private String email;

    //根据Set的方法注入

    public void setUser(User user) {

        this.user = user;

    }

    public User getUser() {

        return user;

    }

    public void setEmail(String email) {

        this.email = email;

    }

    public String getInfo(){

        System.out.println("email:"+email);

        System.out.println("user:"+user);

        return "info";

    }

}

package cn.zr.struts2.action;

public class LoginAction extends SuperAction{

    public String thing(){

        System.out.println("进入thing的方法.......");

        return "page";

    }

    public String add() {

        System.out.println("welcome to here======");

        System.err.println("request:"+request+",response:"+response+",session:"+session);

        return "page";

    }

    public String update() {

        System.out.println("**** * update * ****");

        return "page";

    }

}

package cn.zr.struts2.action;

public class Register extends SuperAction{

    public String testSome(){

        System.out.println("测试+++");

        return "lf";

    }

}

package cn.zr.struts2.action;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;

import org.apache.struts2.interceptor.ServletResponseAware;

public class SuperAction implements ServletRequestAware,ServletResponseAware{

    public HttpServletRequest request;

    public HttpServletResponse response;

    public HttpSession session;

    @Override

    public void setServletResponse(HttpServletResponse response) {

        this.response = response;

    }

    @Override

    public void setServletRequest(HttpServletRequest request) {

        this.request = request;

        this.session = request.getSession();

    }

}

package cn.zr.struts2.interceptor;

import com.opensymphony.xwork2.ActionInvocation;

import com.opensymphony.xwork2.interceptor.Interceptor;

public class LoginInterceptor implements Interceptor{

    @Override

    public void destroy() {

        // TODO Auto-generated method stub

    }

    @Override

    public void init() {

        // TODO Auto-generated method stub

    }

    @Override

    public String intercept(ActionInvocation action) throws Exception {

        System.out.println("拦截前.......");

        String result =  action.invoke();

        System.out.println("=========拦截后.......");

        return result;

    }

}

package cn.zr.struts2.interceptor;

import com.opensymphony.xwork2.ActionInvocation;

import com.opensymphony.xwork2.interceptor.AbstractInterceptor;

public class ThreeInterceptor extends AbstractInterceptor {

    @Override

    public String intercept(ActionInvocation action) throws Exception {

        System.out.println("tell me what do you want to do...");

        String result = action.invoke();

        System.out.println("OK, i let you go...");

        return result;

    }

}

package cn.zr.struts2.interceptor;

import com.opensymphony.xwork2.ActionInvocation;

import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor;

public class TwoInterceptor extends MethodFilterInterceptor{

    @Override

    protected String doIntercept(ActionInvocation action) throws Exception {

        System.out.println("开始拦截，哈哈哈。。。");

        String result = action.invoke();

        System.out.println("放你走，哈哈哈。。。");

        return result;

    }

}

package cn.zr.struts2.pojo;

public class User {

    private String username;

    private String password;

    public String getUsername() {

        return username;

    }

    public void setUsername(String username) {

        this.username = username;

    }

    public String getPassword() {

        return password;

    }

    public void setPassword(String password) {

        this.password = password;

    }

    public User() {

    }

    public User(String username, String password) {

        this.username = username;

        this.password = password;

    }

    @Override

    public String toString() {

        return "User [username=" + username + ", password=" + password + "]";

    }

}

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>info starting page</title>

  </head>

  <body>

    <h1>OK</h1>

  </body>

</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>login page</title>

    <meta http-equiv="pragma" content="no-cache">

    <meta http-equiv="cache-control" content="no-cache">

    <meta http-equiv="expires" content="0">

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="This is my page">

    <!--

    <link rel="stylesheet" type="text/css" href="styles.css">

    -->

  </head>

  <body>

    <h1>欢迎进入登录页面</h1>

  </body>

</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    <title>register page</title>

  </head>

  <body>

    <h1> welcome </h1>

    <form action="/lf/inf_getInfo.action" method="post">

        <label>用户</label><input name="user.username"><br>

        <label>密码</label><input name="user.password"><br>

        <label>邮箱</label><input name="email"><br>

        <input type="submit" value="提交">

    </form>

  </body>

</html>

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struts2 框架的基本使用

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