Spring整合Struts2簡單示例(轉)

 

Spring整合Struts2簡單示例

1.SpringIntegrateStruts2Demo項目結構：

2.LoginAction.java源代碼：

package com.xqh.action;

import com.opensymphony.xwork2.ActionSupport;
import com.xqh.service.MyService;

public class LoginAction extends ActionSupport{

    //下面是用於封裝用戶請求參數的兩個屬性
    private String username;
    private String password;
    //用於封裝處理結果的屬性
    private String tip;
    //系統所用的業務邏輯組件
    private MyService ms;
    //設置注入業務邏輯組件所必需的setter方法
    public void setMs(MyService ms)
    {
        this.ms = ms;
    }
    //username屬性的setter和getter方法
    public void setUsername(String username)
    {
        this.username = username;
    }
    public String getUsername()
    {
        return this.username;
    }
    //password屬性所必需的setter和getter方法
    public void setPassword(String password)
    {
        this.password = password;
    }
    public String getPassword()
    {
        return this.password;
    }
    //tip屬性的getter和setter方法
    public void setTip(String tip)
    {
        this.tip = tip;
    }
    public String getTip()
    {
        return this.tip;
    }
    //處理用戶請求的execute方法
    public String execute() throws Exception
    {
        //調用業務邏輯組件的valid方法來
        //驗證用戶輸入的用戶名和密碼是否正確
        if (ms.valid(getUsername(), getPassword()))
        {
            setTip("Spring與Struts2整合成功！");
            return SUCCESS;
        }
        else
        {
            return ERROR;
        }
    }
}

package com.xqh.action; import com.opensymphony.xwork2.ActionSupport; import com.xqh.service.MyService; public class LoginAction extends ActionSupport{ //下面是用於封裝用戶請求參數的兩個屬性 private String username; private String password; //用於封裝處理結果的屬性 private String tip; //系統所用的業務邏輯組件 private MyService ms; //設置注入業務邏輯組件所必需的setter方法 public void setMs(MyService ms) { this.ms = ms; } //username屬性的setter和getter方法 public void setUsername(String username) { this.username = username; } public String getUsername() { return this.username; } //password屬性所必需的setter和getter方法 public void setPassword(String password) { this.password = password; } public String getPassword() { return this.password; } //tip屬性的getter和setter方法 public void setTip(String tip) { this.tip = tip; } public String getTip() { return this.tip; } //處理用戶請求的execute方法 public String execute() throws Exception { //調用業務邏輯組件的valid方法來 //驗證用戶輸入的用戶名和密碼是否正確 if (ms.valid(getUsername(), getPassword())) { setTip("Spring與Struts2整合成功！"); return SUCCESS; } else { return ERROR; } } }

3.MyService.java源代碼：

package com.xqh.service;

public interface MyService {
    public boolean valid(String username, String pass);
}

package com.xqh.service; public interface MyService { public boolean valid(String username, String pass); }

4.MyServiceImpl.java源代碼：

package com.xqh.service;

public class MyServiceImpl implements MyService{

    @Override
    public boolean valid(String username, String pass) {
        if (username.equals("xqh") && pass.equals("123"))
            return true;
        return false;
    }

}

package com.xqh.service; public class MyServiceImpl implements MyService{ @Override public boolean valid(String username, String pass) { if (username.equals("xqh") && pass.equals("123")) return true; return false; } }

5.struts.xml配置文件：

<?xml version="1.0" encoding="GBK"?>
<!-- 指定Struts2配置文件的DTD信息 -->
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">
<!-- Struts2配置文件的根元素 -->
<struts>
    <!-- 配置了系列常量 -->
    <constant name="struts.i18n.encoding" value="GBK"/>
    <package name="login" extends="struts-default">
        <!-- 定義處理用戶請求的Action，該Action的class屬性不是實際處理類
            , 而是Spring容器中的Bean實例-->
        <action name="login" class="loginAction">
            <!-- 爲兩個邏輯視圖配置視圖頁面 -->
            <result name="error">/error.jsp</result>
            <result name="success">/welcome.jsp</result>
        </action>
        <!-- 讓用戶直接訪問該應用時列出所有視圖頁面 -->
        <action name="">
            <result>.</result>
        </action>
    </package>
</struts>

<?xml version="1.0" encoding="GBK"?> <!-- 指定Struts2配置文件的DTD信息 --> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <!-- Struts2配置文件的根元素 --> <struts> <!-- 配置了系列常量 --> <constant name="struts.i18n.encoding" value="GBK"/> <package name="login" extends="struts-default"> <!-- 定義處理用戶請求的Action，該Action的class屬性不是實際處理類 , 而是Spring容器中的Bean實例--> <action name="login" class="loginAction"> <!-- 爲兩個邏輯視圖配置視圖頁面 --> <result name="error">/error.jsp</result> <result name="success">/welcome.jsp</result> </action> <!-- 讓用戶直接訪問該應用時列出所有視圖頁面 --> <action name=""> <result>.</result> </action> </package> </struts>

6.applicationContext.xml配置文件：

<?xml version="1.0" encoding="GBK"?>
<!-- 指定Spring配置文件的DTD信息 -->
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"
    "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<!-- Spring配置文件的根元素 -->
<beans>
    <!-- 定義一個業務邏輯組件，實現類爲com.xqh.service.MyServiceImpl -->
    <bean id="myService" class="com.xqh.service.MyServiceImpl"/>
    <!-- 讓Spring管理的Action實例 -->
    <bean id="loginAction" class="com.xqh.action.LoginAction"
        scope="prototype">
        <!-- 依賴注入業務邏輯組件 -->
        <property name="ms" ref="myService"/>
    </bean>
</beans>

<?xml version="1.0" encoding="GBK"?> <!-- 指定Spring配置文件的DTD信息 --> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd"> <!-- Spring配置文件的根元素 --> <beans> <!-- 定義一個業務邏輯組件，實現類爲com.xqh.service.MyServiceImpl --> <bean id="myService" class="com.xqh.service.MyServiceImpl"/> <!-- 讓Spring管理的Action實例 --> <bean id="loginAction" class="com.xqh.action.LoginAction" scope="prototype"> <!-- 依賴注入業務邏輯組件 --> <property name="ms" ref="myService"/> </bean> </beans>

注意：當Spring容器管理Struts2的Action時，由於每個Action對應一次用戶請求，且封裝了該請求的請求百狀態信息，所以不應該將Action配置成單例模式，因些必須指定scope屬性，該屬性值可指定爲prototype和request兩種

7.web.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <welcome-file-list>
    <welcome-file>login.jsp</welcome-file>
  </welcome-file-list>
  <!-- 使用ContextLoaderListener初始化Spring容器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <!-- 定義Struts2的FilterDispathcer的Filter -->
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>
    <!-- FilterDispatcher用來初始化Struts2並且處理所有的WEB請求。 -->
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> <!-- 使用ContextLoaderListener初始化Spring容器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <!-- 定義Struts2的FilterDispathcer的Filter --> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> </filter> <!-- FilterDispatcher用來初始化Struts2並且處理所有的WEB請求。 --> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>

8.login.jsp源代碼：

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
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>登錄頁面</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>
    <form action="login.action" method="post">
    <table align="center">
    <caption><h3>用戶登錄</h3></caption>
        <tr>
            <td>用戶名：<input type="text" name="username"/></td>
        </tr>
        <tr>
            <td>密  碼：<input type="text" name="password"/></td>
        </tr>
        <tr align="center">
            <td colspan="2"><input type="submit" value="登錄"/><input type="reset" value="重填" /></td>
        </tr>
    </table>
</form>
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%> <% 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>登錄頁面</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> <form action="login.action" method="post"> <table align="center"> <caption><h3>用戶登錄</h3></caption> <tr> <td>用戶名：<input type="text" name="username"/></td> </tr> <tr> <td>密  碼：<input type="text" name="password"/></td> </tr> <tr align="center"> <td colspan="2"><input type="submit" value="登錄"/><input type="reset" value="重填" /></td> </tr> </table> </form> </body> </html>

9.error.jsp源代碼：

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
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>錯誤頁面</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>
    登錄失敗！
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%> <% 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>錯誤頁面</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> 登錄失敗！ </body> </html>

10.welcome.jsp源代碼：

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
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>成功頁面</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>
    您已經登錄!<br/>
        <s:property value="tip"/>
  </body>
</html>