5.6 Spring与Struts 2整合应用

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开发一个Spring与Struts 2的整合项目的步骤如下。

1 创建Web项目Struts_Spring

2 添加Struts 2框架

添加Struts 2框架支持。

配置web.xml，代码如下：

<?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" version="3.0"><display-name>Struts_Spring</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>*.action</url-pattern></filter-mapping><filter-mapping><filter-name>struts2</filter-name><url-pattern>*.jsp</url-pattern></filter-mapping>
</web-app>

3 创建login.jsp

<%@ page language="java" pageEncoding="utf-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<html>
<head><title>登录界面</title>
</head>
<body>
<s:form action="login.action" method="post"><s:textfield name="xh" label="学号"/><s:password name="kl" label="口令"/><s:submit value="登录"/></s:form>
</body>
</html>

4 创建Action

LoginAction.java代码如下：

package org.action;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport{private String xh;private String kl;public String getXh() {return xh;}public void setXh(String xh) {this.xh = xh;}public String getKl() {return kl;}public void setKl(String kl) {this.kl = kl;}public String execute() throws Exception {return SUCCESS;}
}

配置struts.xml文件，代码如下：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts><include file="struts-default.xml"/><package name="default" extends="struts-default" namespace="/"><action name="login" class="org.action.LoginAction"><result name="success">/login_success.jsp</result></action></package>
</struts>

5 创建login_success.jsp

代码如下：

<%@ page contentType="text/html;charset=utf-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<body >
<h2>您好! <s:property value=" xh"/>欢迎您登录成功 </h2>
</body>
</html>

6 部署运行

部署，测试Struts 2是否正常。运行http://localhost:8080/Struts_Spring/login.jsp，在登录框和密码框中任意输入，单击【登录】按钮，转向登录成功界面，并输出登录名。

7 添加Spring框架

步骤同5.2.2节。

8 添加Spring支持包struts2-spring-plugin.jar

注意，一定要加入该包，该包位于Struts 2的lib目录下。

9 修改web.xml内容

修改web.xml内容，使得程序增加对Spring的支持。

<?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" version="3.0"><display-name>Struts_Spring</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>*.action</url-pattern></filter-mapping><filter-mapping><filter-name>struts2</filter-name><url-pattern>*.jsp</url-pattern></filter-mapping><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param>
</web-app>

10 创建消息包文件struts.properties

在src文件夹下创建struts.properties文件，使得Struts 2的类的生成交给Spring完成。步骤如下：右击项目的src文件夹，在弹出的菜单中选择【New】→【File】菜单项，之后在Enter or select the parent folder中输入struts2_spring/src，在File name栏中写入struts.properties，单击【确定】按钮。文件内容如下：

struts.objectFactory=spring

11 修改applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">
<bean id="loginAction" class="org.action.LoginAction"></bean>
</beans>

12 修改struts.xml

使得struts 2的类的生成交给Spring完成。

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts><include file="struts-default.xml"/><package name="default" extends="struts-default" namespace="/"><action name="login" class="loginAction"><result name="success">/login_success.jsp</result></action></package>
</struts>

13 部署运行

附：目录《JavaEE基础实用教程》笔记说明

转载于:https://my.oschina.net/jerrypan/blog/633189