spring jpa restful请求示例

创建项目

导入jar包
mysql 数据库和连接池jar

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.27</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>

application.peoperties

spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/mydb?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&autoReconnectForPools=true

# JPA 配置
# 数据库为 MySQL
spring.jpa.database=mysql
# 在控制台打印 SQL
spring.jpa.show-sql=true
# 数据库平台
spring.jpa.database-platform=mysql
# 每次启动项目时，数据库初始化策略
spring.jpa.hibernate.ddl-auto=update
# 指定默认的存储引擎为 InnoDB ，否则默认情况下，自动创建表的时候会使用 MyISAM 作为表的存储引擎
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL57Dialect

创建model类

import javax.persistence.*;
import java.util.Objects;

/**
 * https://blog.csdn.net/mononoke111/article/details/91924002
 */
@Entity
@Table(name = "tb_score", schema = "mydb", catalog = "")
public class TbScoreEntity {
    private int id;
    private String userid;
    private String subject;
    private Double score;

    @Id
    @Column(name = "id")
    public int getId() {
        return id;
    }

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

    @Basic
    @Column(name = "userid")
    public String getUserid() {
        return userid;
    }

    public void setUserid(String userid) {
        this.userid = userid;
    }

    @Basic
    @Column(name = "subject")
    public String getSubject() {
        return subject;
    }

    public void setSubject(String subject) {
        this.subject = subject;
    }

    @Basic
    @Column(name = "score")
    public Double getScore() {
        return score;
    }

    public void setScore(Double score) {
        this.score = score;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        TbScoreEntity that = (TbScoreEntity) o;
        return id == that.id && Objects.equals(userid, that.userid) && Objects.equals(subject, that.subject) && Objects.equals(score, that.score);
    }

    @Override
    public int hashCode() {
        return Objects.hash(id, userid, subject, score);
    }
}

创建dao类

package com.example.jpa.demojpa.dao;

import com.example.jpa.demojpa.entity.TbScoreEntity;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.rest.core.annotation.RepositoryRestResource;

@RepositoryRestResource(path = "score")
public interface ScoreDao extends JpaRepository<TbScoreEntity, Integer> {

}

postman请求，可以进行GET POST PUT PATCH DELETE请求
http://localhost:8080/
http://localhost:8080/score/1