spring boot实现数据库增、删、改查

 1 # 视图引擎thymeleaf的配置
 2 # 开启缓存，在开发阶段可关闭，部署后可开启
 3 spring.thymeleaf.cache=true
 4 spring.thymeleaf.encoding=utf-8
 5 spring.thymeleaf.mode=HTML
 6 spring.thymeleaf.prefix=classpath:/templates/
 7 spring.thymeleaf.suffix=.html
 8 
 9 # mysql数据库的配置（版本8.0）
10 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
11 spring.datasource.url=jdbc:mysql://localhost:3306/news?serverTimezone=UTC
12 spring.datasource.username=root
13 spring.datasource.password=root

 1 package com.zyz.demo4.domain;
 2 
 3 /**
 4  * Hero类跟表hero一一对应
 5  */
 6 public class Hero {
 7     private Integer id;
 8 
 9     public Integer getId() {
10         return id;
11     }
12 
13     public void setId(Integer id) {
14         this.id = id;
15     }
16 
17     public String getName() {
18         return name;
19     }
20 
21     public void setName(String name) {
22         this.name = name;
23     }
24 
25     public Float getPower() {
26         return power;
27     }
28 
29     public void setPower(Float power) {
30         this.power = power;
31     }
32 
33     private String name;
34     private Float power;
35 }