springmvc+springjpa+hibernate整合简例

1、例子下载地址

代码下载地址

2、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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">  <display-name>springmvc</display-name>      <!-- Spring-MVC的请求转发器 -->  <servlet>  <servlet-name>spring-mvc</servlet-name>  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  <init-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath:springmvc-servlet.xml</param-value>  </init-param>  <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>  <servlet-name>spring-mvc</servlet-name>  <url-pattern>/</url-pattern>  </servlet-mapping>      <!-- Spring配置 -->     <listener>      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>     </listener>   <!-- 指定Spring Bean的配置文件所在目录。默认配置在WEB-INF目录下 -->    <context-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath:applicationContext.xml</param-value>  </context-param>    <!-- 编码过滤器 -->  <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>   <!-- 解决spring data jpa 事务懒加载 -->    <filter>        <filter-name>openEntityManagerInViewFilter</filter-name>        <filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>openEntityManagerInViewFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>       <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list></web-app>

3、springmvc-servlet.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"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/mvc   http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd   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-3.0.xsd"><!--  当映射为@RequestMapping("/user/add")时：1、拦截*.do，例如：/user/add.do，弊端：所有的url都要以.do结尾。不会影响访问静态文件。2、拦截/app/*，例如：/app/user/add，弊端：请求的url都要包含/app，@RequestMapping("/user/add")中不须要包含/app。3、拦截/，例如：/user/add，弊端：对jpg,js,css静态文件的访问也被拦截不能正常显示。后面有解决办法。4、拦截/*，可以走到Action中，但转发到jsp时再次被拦截，不能访问到jsp。--><!-- 扫描web包，应用Spring的注解 --><context:component-scan base-package="com.springmvc.test.controller"/><!-- 会自动注册DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,是spring MVC为@Controllers分发请求所必须的。 -->    <mvc:annotation-driven />    <!-- 配置视图解析器，将ModelAndView及字符串解析为具体的页面 --><beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"p:viewClass="org.springframework.web.servlet.view.JstlView" p:prefix="/WEB-INF/jsp/"p:suffix=".jsp" />     <!-- 对静态资源文件的访问  方案一 （二选一）      <mvc:default-servlet-handler/>       -->           <!-- 对静态资源文件的访问  方案二 （二选一） --><mvc:resources mapping="/images/**" location="/images/" cache-period="31556926"/>  <mvc:resources mapping="/js/**" location="/js/" cache-period="31556926"/>  <mvc:resources mapping="/css/**" location="/css/" cache-period="31556926"/>        </beans>

4、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:context="http://www.springframework.org/schema/context" xmlns:jpa="http://www.springframework.org/schema/data/jpa"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"><!-- spring扫描的路径 为了使用注解--> <context:component-scan base-package="com.springmvc.test"/> <!-- 定义实体管理器工厂 -->        <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">               <property name="persistenceUnitName" value="myJPA"/>        </bean>                 <!-- 配置事务管理器 -->          <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">              <property name="entityManagerFactory" ref="entityManagerFactory" />          </bean>                <!-- 启用 annotation事务-->         <tx:annotation-driven transaction-manager="transactionManager"/>                    <!-- 配置Spring Data JPA扫描目录-->         <jpa:repositories base-package="com.springmvc.test.repository"/></beans>

5、persistence.xml

<?xml version="1.0" encoding="UTF-8"?><persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence"             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence             http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">                <persistence-unit name="myJPA" transaction-type="RESOURCE_LOCAL">    <provider>org.hibernate.ejb.HibernatePersistence</provider>          <properties>            <!--配置Hibernate方言 -->            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect" />            <!--配置数据库驱动 -->            <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" />            <!--配置数据库用户名 -->            <property name="hibernate.connection.username" value="root" />            <!--配置数据库密码 -->            <property name="hibernate.connection.password" value="123456" />            <!--配置数据库url -->            <property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8" />            <!--设置外连接抓取树的最大深度 -->            <property name="hibernate.max_fetch_depth" value="3" />            <!--自动输出schema创建DDL语句 -->            <property name="hibernate.hbm2ddl.auto" value="update" />                <property name="hibernate.show_sql" value="true" />            <property name="hibernate.format_sql" value="true" />            <property name="javax.persistence.validation.mode" value="none"/>        </properties>    </persistence-unit></persistence>

6、目录结构

7、基本类

（1）Person

package com.springmvc.test.entity;import java.io.Serializable;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;/** *  * @author xuzebin * */@Entity@Table(name="person")public class Person implements Serializable{private static final long serialVersionUID = 1L;@Id@GeneratedValue(strategy=GenerationType.AUTO)private Integer id;private String name;private Integer age;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}@Overridepublic String toString() {StringBuilder builder = new StringBuilder();builder.append("Person [id=");builder.append(id);builder.append(", name=");builder.append(name);builder.append(", age=");builder.append(age);builder.append("]");return builder.toString();}}

（2）PersonRepository

package com.springmvc.test.repository;import org.springframework.data.jpa.repository.JpaRepository;import org.springframework.stereotype.Repository;import com.springmvc.test.entity.Person;@Repositorypublic interface PersonRepository extends JpaRepository<Person, Integer> {}

（3）PersonManager

package com.springmvc.test.service;import com.springmvc.test.entity.Person;/** *  * @author xuzebin * */public interface PersonManager {public void save(Person p);}

（4）PersonManagerImpl

package com.springmvc.test.impl;import javax.annotation.Resource;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.stereotype.Service;import com.springmvc.test.entity.Person;import com.springmvc.test.repository.PersonRepository;import com.springmvc.test.service.PersonManager;/** *  * @author xuzebin * */@Service("personManager")public class PersonManagerImpl implements PersonManager {@Autowiredprivate PersonRepository personRepository;public void save(Person p) {personRepository.save(p);}}

（5）TestController

package com.springmvc.test.controller;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import com.springmvc.test.entity.Person;import com.springmvc.test.repository.PersonRepository;import com.springmvc.test.service.PersonManager;import com.springmvc.test.util.TestUtil;/** *  * @author xuzebin * */@Controller@RequestMapping("/test")public class TestController {@Autowiredprivate TestUtil testUtil;@Autowiredprivate PersonManager personManager;@RequestMapping("/show")public String show(){System.out.println(testUtil.say());Person p=new Person();p.setName("xzb");p.setAge(25);personManager.save(p);return "test";}}

8、参考原博客地址

原文地址