.jsp 在前後端不分離的情況下 這個頁面應該是最常用的了，先看配置

application.yml

server:
  context-path: /bps
spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver
    username: root
    password: ROOT
    url: jdbc:mysql://127.0.0.1:3306/test?characterEncoding=utf-8


    #最大活躍數
    maxActive: 20
    #初始化數量
    initialSize: 1
    #最大連線等待超時時間
    maxWait: 60000
    #開啟PSCache，並且指定每個連線PSCache的大小
    poolPreparedStatements: true
    maxPoolPreparedStatementPerConnectionSize: 20
    #通過connectionProperties屬性來開啟mergeSql功能；慢SQL記錄
    #connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
    minIdle: 1
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: select 1 from dual
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
            #配置監控統計攔截的filters，去掉後監控介面sql將無法統計,'wall'用於防火牆
    filters: stat, wall, log4j  
  jpa:
    properties:
      hibernate:
        show_sql: true
        format_sql: true
        dialect: org.hibernate.dialect.MySQL5Dialect
        naming:
        #jpa查sql將欄位自動加下劃線(org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl)
          physical-strategy: org.hibernate.cfg.ImprovedNamingStrategy
 #   ddl-auto: update  create (自動建立表,要先建立類,每次都是先刪再建立) update：如果表存在則不建立，只在第一次初始化時建立表 

  mvc:
    view:
      prefix: /WEB-INF/jsp/
      suffix: .jsp

logging:
  level:
  #日誌輸出，可控制路徑，或者級別  --> eureka.manager.controller: 'info'  
    eureka.manager.controller: 'off'



#  devtools:
#    restart:
#      enabled: true #熱部署生效
      #設定重啟的目錄
#      additional-paths: src/main/java
#      exclude: WEB-INF/** #classpath目錄下的WEB-INF資料夾內容修改不重啟
            
#mybatis:
#  mapper-locations: classpath*:mybatis/*Mapper.xml
#  type-aliases-package: com.demo.entity

#spring:
#  profiles:
#    active: dev
 

其實上面一大堆有用的只有，注意 頂層應該還有 spring:

  mvc:
    view:
      prefix: /WEB-INF/jsp/
      suffix: .jsp

Controller

    @RequestMapping("/retu")
	public String jsp(Model model){
    	List <Items>itemsList =new LinkedList<Items>();
    	for (int i=0;i<=5;i++) {
    		Items item =new Items();
    		item.setId(3);
    		item.setDetail("111111");
    		item.setName("111111");
    		itemsList.add(item);
		}
    	model.addAttribute("itemsList", itemsList);
		return "fir";
	}