spring+struts的集成(第一种集成方案)

spring+struts的集成(第一种集成方案)
原理：在Action中取得BeanFactory对象，然后通过BeanFactory获取业务逻辑对象

1、spring和struts依赖库配置
* 配置struts
--拷贝struts类库和jstl类库
--修改web.xml文件来配置ActionServlet
--提供struts-config.xml文件
--提供国际化资源文件
* 配置spring
--拷贝spring类库
--提供spring配置文件

2、在struts的Action中调用如下代码取得BeanFactory
BeanFactory factory = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());

3、通过BeanFactory取得业务对象，调用业务逻辑方法

applicationContext-beans.xml

引用

<?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:aop="http://www.springframework.org/schema/aop"
     xmlns:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">

<bean id="userManager" class="com.bjsxt.usermgr.manager.UserManagerImpl"/>
</beans>

Web.xml

引用

<?xml version="1.0" encoding="UTF-8"?>
<web-app 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>index.jsp</welcome-file>
  </welcome-file-list>
 
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
      <param-name>debug</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>detail</param-name>
      <param-value>2</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
  </servlet>


  <!-- Standard Action Servlet Mapping -->
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping> 

<!-- 
  <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath*:applicationContext-*.xml,/WEB-INF/applicationContext-*.xml</param-value>
  </context-param>
-->
   <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath*:applicationContext-*.xml</param-value>
  </context-param>
  
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
  
</web-app>

struts-config.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">

<struts-config>
	<form-beans>
		<form-bean name="loginForm" type="com.bjsxt.usermgr.forms.LoginActionForm"/>
	</form-beans>
	
	<action-mappings>
		
		<action path="/logininput"
				forward="/login.jsp"
		></action>
	
		<action path="/login"
				type="com.bjsxt.usermgr.actions.LoginAction"
				name="loginForm"
				scope="request"	
		>
			<forward name="success" path="/success.jsp"/>
		</action>
	</action-mappings>

    <message-resources parameter="MessageResources" />
</struts-config>

LoginActionForm.java

package com.bjsxt.usermgr.forms;

import org.apache.struts.action.ActionForm;

public class LoginActionForm extends ActionForm {
	
	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;
	}
}

LoginAction.java

package com.bjsxt.usermgr.actions;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.bjsxt.usermgr.forms.LoginActionForm;
import com.bjsxt.usermgr.manager.UserManager;
import com.bjsxt.usermgr.manager.UserManagerImpl;

public class LoginAction extends Action {

	@Override
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		LoginActionForm laf = (LoginActionForm)form;
		
		//UserManager userManager = new UserManagerImpl();
		//userManager.login(laf.getUsername(), laf.getPassword());
		
		//BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext-beans.xml");
		//UserManager userManager = (UserManager)factory.getBean("userManager");
		//userManager.login(laf.getUsername(), laf.getPassword());
		
		BeanFactory factory = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());
		
		//ApplicationContext pc = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());
		UserManager userManager = (UserManager)factory.getBean("userManager");
		userManager.login(laf.getUsername(), laf.getPassword());
		
		return mapping.findForward("success");
	}

	
}

UserManager.java

package com.bjsxt.usermgr.manager;

public interface UserManager {

	public void login(String username, String password);
}

UserManagerImpl.java

package com.bjsxt.usermgr.manager;

public class UserManagerImpl implements UserManager {

	public void login(String username, String password) {
		System.out.println("UserManagerImpl.login() -- username=" + username);
	}
}

index.jsp

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!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=GB18030">
<title>spring和struts的集成（第一种方案）</title>
</head>
<body>
	<h1>spring和struts的集成（第一种方案）</h1>
	<hr>
	<a href="logininput.do">登录</a>
</body>
</html>

login.jsp

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!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=GB18030">
<title>用户登录</title>
</head>
<body>
	<form action="login.do" method="post">
		用户：<input type="text" name="username"><br>
		密码：<input type="password" name="password"><br>
		<input type="submit" value="登录">
	</form>
</body>
</html>

success.jsp

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!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=GB18030">
<title>Insert title here</title>
</head>
<body>
	${loginForm.username },用户登录成功！
</body>
</html>