SpringBoot整合SpringData-JPA
阿新 • • 發佈:2018-12-13
1、依賴新增
// 新增spring data jpa依賴
compile('org.springframework.boot:spring-boot-starter-data-jpa')
// 新增mysql驅動
compile('mysql:mysql-connector-java:6.0.5')
// 執行時內嵌資料庫
runtime('com.h2database:h2:1.4.193')
2、配置資料來源
spring.datasource.driverClassName=com.mysql.jdbc.Driver #spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver spring.datasource.url=jdbc:mysql://127.0.0.1:3306/blog?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC spring.datasource.username=root spring.datasource.password= #啟用h2控制檯 #spring.h2.console.enabled=true #JPA spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=create-drop
3、重點在編碼CRUD介面
①、實體JPA化
import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; /** * User 實體 * @author zemel * */ @Entity public class User { @Id @GeneratedValue private Long id; //唯一標識 private String name; //名稱 private String email; protected User(){ // 防止直接使用 } public User(Long id, String name, String email){ this.id = id; this.name = name; this.email = email; } public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } @Override public String toString() { String.format("User [id=%d]", id); return "User [id=" + id + ", name=" + name + ", email=" + email + "]"; }
②、Repository介面
import org.springframework.data.repository.CrudRepository;
import com.example.demo.domain.User;
/**
* UserRepository 介面
*
* @author Administrator
*
*/
public interface UserRepository extends CrudRepository<User, Long>{
}