springboot整合springjpa
首先我们引入jar
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
配置数据源
spring.datasource.url=jdbc:mysql://ip:port/geex
spring.datasource.username=
spring.datasource.password=
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
model
package com.tzp.springjpa.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Table(name = "user")
@Entity(name = "users")
public class UserEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
@Column(name = "name")
private String name;
@Column(name = "age")
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;
}
}
dao
package com.tzp.springjpa.dao;
import org.springframework.data.jpa.repository.JpaRepository;
import com.tzp.springjpa.model.UserEntity;
public interface UserDao extends JpaRepository<UserEntity, Integer>{
}
controller
package com.tzp.springjpa.controller;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.tzp.springjpa.dao.UserDao;
import com.tzp.springjpa.model.UserEntity;
@RestController
public class IndexController {
@Autowired
private UserDao userDao;
@RequestMapping("/jpaIndex")
public Object jpaIndex(UserEntity user) {
userDao.saveAndFlush(user);
Optional<UserEntity> optional = userDao.findById(user.getId());
UserEntity userEntity = optional.get();
return userEntity == null?"存储数据失败!":userEntity;
}
}