照葫芦画瓢系列之Java --- eclipse下使用maven创建Struts 2项目

一、创建Maven项目

http://www.cnblogs.com/zhanqun/p/8425571.html

二、添加struts2核心依赖包以及其他依赖项

打开pom.xm配置界面

点击Add按钮添加struts2-core.jar

选中并点击Ok添加进入项目即可；添加完成后如下

三、新建Action

1、新建package名为cn.smallbyte.mavendemo.action

2、在包内创建以UserAction命名的class，继承自com.opensymphony.xwork2.ActionSupport

UserAction.java内容如下

package cn.smallbyte.mavendemo.action;

import java.io.UnsupportedEncodingException;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction extends ActionSupport {

    private static final long serialVersionUID = 1L;

    public String execute() {

        return SUCCESS;

    }

    public String login() {

        try {

            HttpServletRequest request = ServletActionContext.getRequest();

            HttpServletResponse response = ServletActionContext.getResponse();

            request.setCharacterEncoding("UTF-8");

            response.setContentType("text/html;charset=utf-8");

            String username = request.getParameter("username");

            String password = request.getParameter("password");

            System.out.println("name->" + username + ",password->" + password);

            if ("admin".equals(username) && "123456".equals(password)) {

                return SUCCESS;

            } else {

                return "login";

            }

        } catch (UnsupportedEncodingException e) {

            e.printStackTrace();

        }

        return SUCCESS;

    }

}

3、配置struts2的核心配置文件（src/main/resources下struts.xml文件），内容如下：

<?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="mavendemoAction" namespace="/demo" extends="struts-default">

        <action name="login" class="cn.smallbyte.mavendemo.action.UserAction"

            method="login">

            <result name="success">/success.jsp</result>

            <result name="login">/login.jsp</result>

        </action>

    </package>

</struts>

4、配置/src/main/webapp/WEB-INF/web.xml，内容如下：

<?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">

    <display-name>mavendemo</display-name>

    <!-- struts2 -->

    <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>*.action</url-pattern>

    </filter-mapping>

</web-app>

5、创建web页面

struts.xml文件中配置了success.jsp/login.jsp两个页面

<%@ 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>Login Page</title>

</head>

<body>

    <form action="${pageContext.request.contextPath}/demo/login.action" method="post">

        username:<input type="text" name="username" value="" /><br />

        password:<input type="text" name="password" value="" /> <br />

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

    </form>

</body>

</html>

success.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>Login Success</title>

</head>

<body>Login Success

</body>

</html>

6、编译

鼠标右键点击项目，然后依次选择

Run As -> Maven Install直到出现如下Build Success消息表示编译成功

7、发布

鼠标右键项目 -> Run As -> Run On Server -> Manually define a new server ->Tomcat v7.0 Server

点击finish完成。

8、验证

在浏览器输入：http://localhost:8080/mavendemo/demo/login.action

输入admin/123456后提交后登录成功并跳转到success.jsp页面