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Spring与Struts2整合应用

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文章目录
  1. 1. 新建项目
  2. 2. 添加struts2框架
  3. 3. web.xml
  4. 4. login.jsp
  5. 5. LoginAction.java
  6. 6. struts.xml
  7. 7. login_success.jsp
  8. 8. 部署运行
  9. 9. 添加Spring框架
  10. 10. 添加Spring支持包
  11. 11. 修改web.xml
  12. 12. struts.properties
  13. 13. applicationContext.xml
  14. 14. 修改struts.xml
  15. 15. 再次部署运行
  16. 16. 源代码分享
  17. 17. 参考文档

新建项目

新建Dynamic Web Project，命名为struts2_spring。

添加struts2框架

添加struts2五个核心jar包到lib文件夹。

web.xml

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<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	<welcome-file-list>
		<welcome-file>/login.jsp</welcome-file>
	</welcome-file-list>
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

</web-app>

login.jsp

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

LoginAction.java

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package com.voidking.struts2_spring.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;
	}
}

struts.xml

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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
	<include file="struts-default.xml"></include>
	<package name="default" extends="struts-default">
		<action name="login" class="com.voidking.struts2_spring.action.LoginAction">
			<result name="success">/login_success.jsp</result>
		</action>
	</package>
</struts>

login_success.jsp

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

部署运行

在登录框和密码框输入任意输入，单击登录按钮，转向登录成功界面，并输出登录名。

添加Spring框架

拷贝Spring的核心jar包到lib文件夹。

添加Spring支持包

拷贝struts2-spring-plugin.jar到lib文件夹，该包位于Struts2的lib目录下。

修改web.xml

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<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	<welcome-file-list>
		<welcome-file>/login.jsp</welcome-file>
	</welcome-file-list>
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

	<listener>
		<listener-class>
			org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>
			/WEB-INF/classes/applicationContext.xml
		</param-value>
	</context-param>
</web-app>

struts.properties

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struts.objectFactory=spring

该文件位于src文件夹下，运行过程中会被Struts2框架加载，是的Struts2的类对象的生成交给Spring完成。

applicationContext.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!--
  - Middle tier application context definition for the image database.
  -->
<beans xmlns="http://www.springframework.org/schema/beans"
		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		xmlns:context="http://www.springframework.org/schema/context"
		xmlns:tx="http://www.springframework.org/schema/tx"
		xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
				http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
				http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
	<bean id="loginAction" class="com.voidking.struts2_spring.action.LoginAction"></bean>

</beans>

修改struts.xml

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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
	<include file="struts-default.xml"></include>
	<package name="default" extends="struts-default">
		<!-- 使用Spring生成的类对象 -->
		<action name="login" class="loginAction">
			<result name="success">/login_success.jsp</result>
		</action>
	</package>
</struts>

再次部署运行

我们可以得到和第一次部署运行同样的结果。

源代码分享

https://github.com/voidking/struts2_spring.git

参考文档

《Java EE基础实用教程》，郑阿奇主编