一步一步学SpringDataJpa——HelloWordDemo

时间：2023-01-02 16:23:17

1.Demo整体架构

一步一步学SpringDataJpa——HelloWordDemo

2.pom.xml文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>SpringDataJpa</groupId>
	<artifactId>SpringDataJpa</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	<name />
	<description />
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<slf4j.version>1.7.0</slf4j.version> 
		<junit.version>4.10</junit.version> 
		<spring.version>3.2.5.RELEASE</spring.version>
		<hibernate.version>4.2.0.Final</hibernate.version>
	</properties>
	<!-- 指定Maven仓库 -->
	<repositories>
		<!-- 官方Maven仓库 -->
		<repository>
			<id>maven</id>
			<name>Maven Repository Switchboard</name>
			<layout>default</layout>
			<url>http://repo1.maven.org/maven2</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
	</repositories>
	<dependencies>
		<!-- slf4j -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
		</dependency>

		<!-- junit -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>${junit.version}</version>
			<scope>test</scope>
		</dependency>

		<!-- 数据库依赖 -->
		<!-- mysql数据库驱动 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.21</version>
		</dependency>
		<!-- oracle11g数据库驱动 <dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc6</artifactId> <version>${oracle.version}</version> </dependency> -->
		<!-- <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> -->
		<dependency>
			<groupId>com.kenai.nbpwr</groupId>
			<artifactId>org-apache-commons-dbcp</artifactId>
			<version>1.2.2-201002241055</version>
		</dependency>
		<!-- spring3 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-expression</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-orm</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<!-- springdatajpa -->
		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-commons</artifactId>
			<version>1.7.1.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-jpa</artifactId>
			<version>1.5.1.RELEASE</version>
		</dependency>

		<!-- aspectjweaver -->
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjweaver</artifactId>
			<version>1.7.0</version>
		</dependency>

		<!-- hibernate4 -->
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-core</artifactId>
			<version>${hibernate.version}</version>
		</dependency>

		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-entitymanager</artifactId>
			<version>${hibernate.version}</version> 
		</dependency>

		<dependency>
			<groupId>asm</groupId>
			<artifactId>asm</artifactId>
			<version>3.3.1</version>
		</dependency>

	</dependencies>
	<build>
		<plugins>
			<plugin>
				<artifactId>maven-war-plugin</artifactId>
			</plugin>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>1.6</source>
					<target>1.6</target>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>



3.Bean文件 

/**
 *
 * Copyright: Copyright (c) 2014 Asiainfo-Linkage
 *
 * bean@date:2014-3-25
 * @ClassName: User.java
 * @Description: 用户表映射类
 *
 * @version: v1.0.0上午9:45:25eleven
 * @author: elevenSpringDataJpa
 *
 * Modification History:
 * Date  Author  Version Description
 * ---------------------------------------------------------*
 * 2014-3-25 eleven v1.0.0 新建
 */
package com.xr.bean;

import java.io.Serializable;

@Entity
@Table(name = "_user")
public class User implements Serializable {

	private static final long serialVersionUID = 4284572555216108008L;

	@Id
	private String id;

	private String name;

	private String pwd;

	private int age;

	public User() {

	}

	public User(String id, String name, String pwd, int age) {
		this.id = id;
		this.name = name;
		this.pwd = pwd;
		this.age = age;
	}

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getPwd() {
		return pwd;
	}

	public void setPwd(String pwd) {
		this.pwd = pwd;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		User other = (User) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}

	@Override
	public String toString() {
		return "User [id=" + id + ", name=" + name + ", pwd=" + pwd + ", age=" + age + "]";
	}

}
3.Repository 

/**
 *
 * Copyright: Copyright (c) 2014 Asiainfo-Linkage
 *
 * repository@date:2014-3-25
 * @ClassName: UserRepository.java
 * @Description: 用户Repository
 *
 * @version: v1.0.0上午9:51:30eleven
 * @author: elevenSpringDataJpa
 *
 * Modification History:
 * Date  Author  Version Description
 * ---------------------------------------------------------*
 * 2014-3-25 eleven v1.0.0 新建
 */
package com.xr.repository;

import org.springframework.data.jpa.repository.JpaRepository;


public interface UserRepository extends JpaRepository<User, String>{

}

4.Service 

/**
 *
 * Copyright: Copyright (c) 2014 Asiainfo-Linkage
 *
 * service@date:2014-3-25
 * @ClassName: UserService.java
 * @Description: 用户服务接口
 *
 * @version: v1.0.0上午9:54:56eleven
 * @author: elevenSpringDataJpa
 *
 * Modification History:
 * Date  Author  Version Description
 * ---------------------------------------------------------*
 * 2014-3-25 eleven v1.0.0 新建
 */
package com.xr.service;

import com.xr.bean.User;

public interface UserService {

	/**
	 * 
	 * @Title: addUser
	 * @Description: TODO(添加用户)
	 * @return: void
	 * @author: eleven
	 * @date: 2014-3-25
	 * @history: Date  Author  Version  Description
	 * 			 ---------------------------------------------------------*
	 * 			 2014-3-25  eleven v1.0.0   修改原因
	 */
	void addUser(User user);
}

/** * * Copyright: Copyright (c) 2014 Asiainfo-Linkage * * service.impl@date:2014-3-25 * @ClassName: UserServiceImpl.java * @Description: 用户服务接口实现类 * * @version: v1.0.0上午9:56:48eleven * @author: elevenSpringDataJpa * * Modification History: * Date  Author  Version Description * ---------------------------------------------------------* * 2014-3-25 eleven v1.0.0 新建 */package com.xr.service.impl;import javax.annotation.Resource;@Service(value = "userService")public class UserServiceImpl implements UserService {		@Resource	private UserRepository userRepository;		public void setUserRepository(UserRepository userRepository) {		this.userRepository = userRepository;	}	/* (非 Javadoc)	 * <p>Title: addUser</p>	 * <p>Description: </p>	 * @see service.UserService#addUser()	 */	@Override	public void addUser(User user) {		userRepository.save(user);	}}

5.Test 

/**
 *
 * Copyright: Copyright (c) 2014 Asiainfo-Linkage
 *
 * com.xr.service@date:2014-3-25
 * @ClassName: UserServiceTest.java
 * @Description: 用户服务接口测试类
 *
 * @version: v1.0.0上午10:12:41eleven
 * @author: elevenSpringDataJpa
 *
 * Modification History:
 * Date  Author  Version Description
 * ---------------------------------------------------------*
 * 2014-3-25 eleven v1.0.0 新建
 */
package com.xr.service;


import java.util.UUID;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:applicationContext.xml"})
public class UserServiceTest {

	@Resource
	private UserService userService;

	@Test
	public void test() {
		User user = new User();
		user.setId(UUID.randomUUID().toString());
		user.setName("springdatajpa");
		user.setPwd("123456");
		userService.addUser(user);
	}

}

6.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:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx" 
	xmlns:jpa="http://www.springframework.org/schema/data/jpa" 
	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-3.0.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
		http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
	<!-- 注解组件扫描 -->
	<context:component-scan base-package="com.xr">
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
	</context:component-scan>

	<aop:aspectj-autoproxy proxy-target-class="true" />

	<!-- 开启注解事务只对当前配置文件有效 -->
	<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />

	<jpa:repositories base-package="com.xr" repository-impl-postfix="Impl" entity-manager-factory-ref="entityManagerFactory" transaction-manager-ref="transactionManager"></jpa:repositories>

	<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="packagesToScan" value="com.xr.bean" />
		<property name="persistenceProvider">
			<bean class="org.hibernate.ejb.HibernatePersistence" />
		</property>
		<property name="jpaVendorAdapter">
			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
				<property name="generateDdl" value="false" />
				<property name="database" value="MYSQL" />
				<property name="databasePlatform" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
				<property name="showSql" value="true" />
			</bean>
		</property>

		<property name="jpaDialect">
			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
		</property>

		<property name="jpaPropertyMap">
			<map>
				<entry key="hibernate.query.substitutions" value="true 1, false 0" />
				<entry key="hibernate.default_batch_fetch_size" value="16" />
				<entry key="hibernate.max_fetch_depth" value="2" />
				<entry key="hibernate.generate_statistics" value="true" />
				<entry key="hibernate.bytecode.use_reflection_optimizer" value="true" />
				<entry key="hibernate.cache.use_second_level_cache" value="false" />
				<entry key="hibernate.cache.use_query_cache" value="false" />
			</map>
		</property>
	</bean>

	<!--事务管理器配置 -->
	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
		<property name="entityManagerFactory" ref="entityManagerFactory" />
	</bean>
	<bean name="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName">
			<value>org.gjt.mm.mysql.Driver</value>
		</property>
		<property name="url">
			<value>jdbc:mysql://localhost:3306/springdatajpa?useUnicode=true&characterEncoding=UTF-8</value>
		</property>
		<property name="username" value="root" />
		<property name="password" value="123456" />
	</bean>
</beans>







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