首先咱們先創建一個maven工程

在pom.xml加入以下 依賴

<!--Mysql 驅動包-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.38</version>
    </dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-jpa 
 
-->
    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-jpa</artifactId>
      <version>1.11.6.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager 
 
-->
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-entitymanager</artifactId>
      <version>5.2.9.Final</version>
    </dependency>

然後配置spring 文件

　　創建一個bean.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: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.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">


    <!--配置數據源-->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="username" value="root"/>
        <property name="password" value="123"/>
        <property name="url" value="jdbc:mysql:///springdata"/>
    </bean>

    <!--配置EntityManagerFactory-->
    <bean id = "entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>
        </property>
        <property name="packagesToScan" value="org.springdata"/>

        <property name="jpaProperties">
            <props>
                <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
    </bean>

    <!--3 配置事務管理器-->
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory"/>
    </bean>

    <!--4 配置支持註解的事務-->
    <tx:annotation-driven transaction-manager="transactionManager"/>

    <!--5 配置spring data-->
    <jpa:repositories base-package="org.springdata" entity-manager-factory-ref="entityManagerFactory"/>

    <context:component-scan base-package="org.springdata"/>

</beans>

創建一個實體類 Employee.java 咱們可以通過JPA 的註解自動生成數據表

package org.springdata.domain;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

/**
 * 雇員:  先開發實體類===>自動生成數據表
 */
@Entity
public class Employee {

    private Integer id;

    private String name;

    private Integer age;

    @GeneratedValue
    @Id
    public Integer getId() {
        return id;
    }

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

    @Column(length = 20)
    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;
    }
}

package org.springdata;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * 測試類
 */
public class SpringDataTest {

    private ApplicationContext ctx = null;

    @Before
    public void setup(){
        ctx = new ClassPathXmlApplicationContext("beans.xml");
        System.out.println("setup");
    }

    @After
    public void tearDown(){
        ctx = null;
        System.out.println("tearDown");
    }

    @Test
    public void testEntityManagerFactory(){

    }
}

創建一個測試類 如上 執行 出現綠色橫條表示成功， 在到數據庫去看下 是否成功創建一個employee表

好了 環境搭建就到這裏啦 是不是很簡單呢，關註走一走 活到九十九 老鐵們 沒毛病

Spring Data 開發環境搭建（二）