SpringMVC+Spring3+Hibernate4开发环境的搭建

在项目早期比较简单，大多用JSP 、Servlet + JDBC 直接获取，以后使用 Struts1(Struts2)+Spring+Hibernate, 严格格按照分层概念驱动项目开发。利用这段时间 Spring MVC代替Struts来进行开发。

MVC已经是现代Web开发中的一个非常重要的部分，以下介绍一下SpringMVC+Spring3+Hibernate4的开发环境搭建

先大致看一下项目结构：

详细的代码不再演示，主要是走了一个非常寻常的路线，mvc-servcie-dao-hibernate的结构，源代码能够下载，主要看一下配置文件。解释见凝视

web.xml

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>SpringMVC</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <!-- 配置Spring -->
  <context-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath*:config/spring-*.xml</param-value>
  </context-param>

  <listener>
  	 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!-- 配置SpringMVC -->
  <servlet>
    <servlet-name>springMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath*:config/spring-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!-- 设置字符集 -->
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!-- 控制Session的开关 -->
  <filter>
  		<filter-name>openSession</filter-name>
  		<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
  </filter>

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

</web-app>

spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

	<!-- 注解扫描的包 -->
	<context:component-scan base-package="com.jialin" />

	<!-- 开启注解方案1 -->
	<!-- 注解方法处理 -->
	<!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"
		/> -->
	<!-- 注解类映射处理 -->
	<!-- <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean> -->

	<!-- 开启注解方案2 -->
	<mvc:annotation-driven />

	<!-- 静态资源訪问，方案1 -->
	<mvc:resources location="/img/" mapping="/img/**" />
	<mvc:resources location="/js/" mapping="/js/**" />

	<!-- 静态资源訪问，方案2 -->
	<!-- <mvc:default-servlet-handler/> -->

	<!-- 视图解释类 -->
	<bean id="viewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/"></property>
		<!--可为空,方便实现自已的根据扩展名来选择视图解释类的逻辑 -->
		<property name="suffix" value=".jsp"></property>
	</bean>

	<!-- 上传文件bean -->
	<!-- <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<property name="defaultEncoding" value="utf-8" /> <property name="maxUploadSize"
		value="10485760000" /> <property name="maxInMemorySize" value="40960" />
		</bean> -->

</beans>  

spring-hibernate.xml

<?

xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

	<!-- 配置数据源 -->
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://127.0.0.1/springmvc" />
		<property name="username" value="root" />
		<property name="password" value="123456" />
	</bean>

	<!--  配置hibernate SessionFactory-->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hiberante.format_sql">true</prop>
			</props>
		</property>
		<property name="configLocations">
			<list>
				<value>
					classpath*:config/hibernate/hibernate.cfg.xml
				</value>
			</list>
		</property>
	</bean>

    <!-- 事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory"></property>
	</bean>

    <!-- 事务代理类 -->
	<bean id="transactionBese"
		class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
		lazy-init="true" abstract="true">
		<property name="transactionManager" ref="transactionManager"></property>
		<property name="transactionAttributes">
			<props>
				<prop key="add*">PROPAGATION_REQUIRED,-Exception</prop>
				<prop key="update*">PROPAGATION_REQUIRED,-Exception</prop>
				<prop key="insert*">PROPAGATION_REQUIRED,-Exception</prop>
				<prop key="modify*">PROPAGATION_REQUIRED,-Exception</prop>
				<prop key="delete*">PROPAGATION_REQUIRED,-Exception</prop>
				<prop key="del*">PROPAGATION_REQUIRED,-Exception</prop>
				<prop key="get*">PROPAGATION_NEVER</prop>
			</props>
		</property>
	</bean>

</beans>  

         spring-core.xml

<?xml version="1.0" encoding="UTF-8"?

>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:context="http://www.springframework.org/schema/context"
 xmlns:p="http://www.springframework.org/schema/p"
 xmlns:mvc="http://www.springframework.org/schema/mvc"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <!-- 引入其它配置文件。能够为多个 -->
    <import resource="classpath*:config/spring/spring-user.xml"/>

 </beans>  

         spring-user.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd" [
<!ENTITY contextInclude SYSTEM "org/springframework/web/context/WEB-INF/contextInclude.xml">
]>

<beans>
    <!-- Spring Bean -->
	<bean id="userDao" class="com.jialin.dao.UserDao">
		<property name="sessionFactory" ref="sessionFactory"></property>
	</bean>

	<bean id="userManagerBase" class="com.jialin.service.UserManager">
		<property name="userDao" ref="userDao"></property>
	</bean>

	<!-- parent为transactionBese。表示支持事务 -->
	<bean id="userManager" parent="transactionBese">
		<property name="target" ref="userManagerBase"></property>
	</bean>

</beans>

           hibernate.cfg.xml

<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <!-- 引入须要映射的类 -->
        <mapping class="com.jialin.entity.User"/>
    </session-factory>
</hibernate-configuration>

以下再来看看Controller

package com.jialin.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.jialin.entity.User;
import com.jialin.service.IUserManager;

@Controller   //相似Struts的Action
@RequestMapping("/user")
public class UserController {

	@Resource(name="userManager")  // 获取spring配置文件里bean的id为userManager的。并注入
	private IUserManager userManager;

	@RequestMapping("/addUser")   // 请求url地址映射，相似Struts的action-mapping
	public String addUser(User user){
		if(userManager.addUser(user))
		{
			// 重定向
			return "redirect:/user/getAllUser";
		}else
		{
			return "/fail";
		}

	}

	@RequestMapping("/updateUser")
	public String updateUser(User user,HttpServletRequest request){
		if (userManager.updateUser(user))
		{
			user = userManager.getOneUser(user);
			request.setAttribute("user", user);
			return "/UserEdit";
		}else
		{
			return "/fail";
		}

	}

	@RequestMapping("/delUser")
	public void delUser(User user,HttpServletResponse response){
		String result = "{\"result\":\"error\"}";

		if(userManager.delUser(user)){
			result = "{\"result\":\"success\"}";
		}
		PrintWriter out = null;
		response.setContentType("application/json");

		try {
			out = response.getWriter();
			out.write(result);
		} catch (IOException e) {
			e.printStackTrace();
		}

	}
	@RequestMapping("/toAddUser")
	public String toAddUser(){
		return "/UserAdd";
	}

	@RequestMapping("/toUpdateUser")
	public String toUpdateUser(User user,HttpServletRequest request){
		User user1=userManager.getOneUser(user);

		request.setAttribute("user1", user1);

		return "/UserEdit";
	}

	@RequestMapping("/getAllUser")
	public String getAllUser(HttpServletRequest request){

		List userList=userManager.getAllUser();

		request.setAttribute("userlist", userList);

		return "/UserMain";
	}

}

源代码……

下面将介绍一些Struts2与SpringMVC差异