SpringBoot整合SpringDataJPA
通过前面多篇文件对SpringDataJPA的介绍，相信大家应该已经对SpringDataJPA很熟悉了，使用起来还是蛮方便的，只是在整合的时候需要添加大量的配置文件，本文来给大家介绍下SpringBoot整合SpringDataJPA的过程
其他JPA接口的实现参考此链接: https://dpb-bobokaoya-sm.blog.csdn.net/column/info/38759
SpringBoot整合SpringDataJPA
1.构建SpringBoot项目
通过IDEA创建一个SpringBoot项目。添加如下依赖。
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- springBoot的启动器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- 测试工具的启动器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<!-- mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<!-- druid连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.9</version>
</dependency>
</dependencies>2.添加相关的配置
在application.properties中添加如下配置
# jdbc 的相关信息
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/ssm?characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=123456
# 配置连接池信息
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
# 配置jpa的相关参数
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true这比我们在Spring中整合SpringDataJPA的配置文件要简单很多！
3.创建pojo
/**
* @program: spring-boot-data-jpa-demo
* @description: pojo
* @author: 波波烤鸭
* @create: 2019-05-20 11:15
*/
@Entity
@Table(name="t_users")
public class Users {
@Id
@GeneratedValue(strategy= GenerationType.IDENTITY)
@Column(name="id")
private Integer id;
@Column(name="name")
private String name;
@Column(name="age")
private Integer age;
@Column(name="address")
private String address;
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;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
@Override
public String toString() {
return "Users [id=" + id + ", name=" + name + ", age=" + age + ", address=" + address + "]";
}
}4.创建dao接口
创建Dao的接口，实现Repository接口
/**
* @program: spring-boot-data-jpa-demo
* @description: Dao接口
* @author: 波波烤鸭
* @create: 2019-05-20 11:17
*/
import com.dpb.spring_boot_data_jpa_demo.pojo.Users;
import org.springframework.data.jpa.repository.JpaRepository;
/**
* 参数一 T :当前需要映射的实体
* 参数二 ID :当前映射的实体中的OID的类型
*
*/
public interface UsersRepository extends JpaRepository<Users,Integer> {
}5.创建启动器
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootDataJpaDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootDataJpaDemoApplication.class, args);
}
}6.单元测试
import com.dpb.spring_boot_data_jpa_demo.dao.UsersRepository;
import com.dpb.spring_boot_data_jpa_demo.pojo.Users;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = SpringBootDataJpaDemoApplication.class)
public class SpringBootDataJpaDemoApplicationTests {
@Autowired
private UsersRepository usersRepository;
@Test
public void testSave(){
Users users = new Users();
users.setAddress("深圳固戍");
users.setAge(20);
users.setName("张三");
this.usersRepository.save(users);
}
}
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原始发表：2019年05月20日，如有侵权请联系 cloudcommunity@tencent.com 删除
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