概览：SpringBoot配置文件，三个文件写法

properties文件

spring.datasource.url=jdbc:mysql://localhost:3306/springjob?useSSL=true&useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=1234
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
mybatis.mapper-locations=classpath:mapper/*.xml
# 注意：对应实体类的路径
mybatis.type-aliases-package=com.qfc.mybatisjob.entity

另一种

https://www.cnblogs.com/charlypage/p/11220755.html

#server.port=80
logging.level.org.springframework=DEBUG
#springboot   mybatis
#jiazai mybatis peizhiwenjian
mybatis.mapper-locations = classpath:mapper/*Mapper.xml
#mybatis.config-location = classpath:mybatis/sqlMapConfig.xml
#mybatis.type-aliases-package = com.demo.bean

#shujuyuan
spring.datasource.driver-class-name= com.mysql.jdbc.Driver
spring.datasource.url = jdbc:mysql://localhost:3306/dss_wshop?useUnicode=true&characterEncoding=utf-8
spring.datasource.username = root
spring.datasource.password = root

spring.thymeleaf.prefix=classpath:/templates/

#禁止thymeleaf缓存（建议：开发环境设置为false，生成环境设置为true）
spring.thymeleaf.cache=false


#pagehelper分页插件配置 以下属性不加也可以实现分页功能
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.supportMethodsArguments=true
pagehelper.params=count=countSql

yml文件

• 来源：朝权的dubbo作业（h2 + lombok的日志）

spring:
  application:
    name: qunar-address-provider
  datasource:
    url: jdbc:h2:mem:user_db;MODE=MySQL
    driver-class-name: org.h2.Driver
    username: root
    password: root
  #    schema: classpath:db/user_schema.sql
  #    data: classpath:db/user_data.sql
  jpa:
    show-sql: true
  h2:
    console:
      enabled: true
      path: /h2
thymeleaf:
  prefix: classpath:/templates/  #prefix：指定模板所在的目录
  check-template-location: true  #check-tempate-location: 检查模板路径是否存在
  cache: false  #cache: 是否缓存，开发模式下设置为false，避免改了模板还要重启服务器，线上设置为true，可以提高性能。
  suffix:  .html
  #encoding: UTF-8
  #content-type: text/html
  mode: HTML5
logging:
  config: classpath:logback-config.xml
server:
  port: 81

• 另一种

# 端口配置
server:
  port: 8080

# 数据库配置
spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/mybatis_homework?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
    username: root
    password: 123456
  application:
    name: mybatis-homework

# Mybatis
mybatis:
  mapper-locations: classpath:mapper/*Mapper.xml
  type-aliases-package: com.jiam.qunar.homework0805.bean
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
    
# 配置PageHelper
pagehelper:
 helper-dialect: mysql

---

xml文件

yaml文件