Springboot集成Jpa

 

引入Jar包

配置文件

實體類：

@Entity
@Table(name = "number")
public class Number {

    @Id
    @GeneratedValue
    private Integer id;

    @Column(name = "number")
    private Integer values;

    public Number() {
    }

    public Number(Integer values) {
        this.values = values;
    }

    public Integer getId() {
        return id;
    }

    public Integer getValues() {
        return values;
    }

    public void setValues(Integer values) {
        this.values = values;
    }

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

遇到問題：注意引用的jar包均爲：

import javax.persistence.*;

public interface JpaService extends JpaRepository<Number,Integer> {
}

 

Controller層

package com.example.demo.jpa;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author admin
 */
@RestController
@RequestMapping(value = "test")
public class JpaController {


    private final JpaService jpaService;

    @Autowired
    public JpaController(JpaService jpaService) {
        this.jpaService = jpaService;
    }


    @RequestMapping(value = "save")
    public Number save(){

        Number save = jpaService.save ( new Number ( 2 ) );

        return save;
    }
}

最後：成功