SpringBoot集成Druid连接池进行SQL监控的问题解析

<dependency>
     <groupId>com.alibaba</groupId>
     <artifactId>druid-spring-boot-starter</artifactId>
     <version>1.2.6</version>
 </dependency>

spring:
  http:
    encoding:
      charset: UTF-8
      force: true
      enabled: true
  datasource:
    url: jdbc:mysql://xxx.xxx.xxx.xxx:3306/database?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&useSSL=false
    username: root
    password : 123456
    driverClassName : com.mysql.cj.jdbc.Driver
    type : com.alibaba.druid.pool.DruidDataSource
    druid:
      initialSize: 5
      minIdle: 5
      maxActive: 20
      # 配置获取连接等待超时的时间
      maxWait: 60000
      # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
      timeBetweenEvictionRunsMillis: 60000
      # 配置一个连接在池中最小生存的时间，单位是毫秒
      minEvictableIdleTimeMillis: 300000
      validationQuery: SELECT 1 FROM DUAL
      testWhileIdle: true
      testOnBorrow: false
      testOnReturn: false
      # 打开PSCache，并且指定每个连接上PSCache的大小
      poolPreparedStatements: true
      maxPoolPreparedStatementPerConnectionSize: 20
      # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
      filters: stat,wall,log4j2
      # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
      connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
      # 合并多个DruidDataSource的监控数据
      useGlobalDataSourceStat: true
      # StatViewServlet配置 sql监控
      stat-view-servlet:
        enabled: true
        url-pattern: "/druid/*"
        reset-enable: false
        login-username: druid
        login-password: druid123
        #允许那些ip
        allow: 127.0.0.1,192.168.120.93
        #禁止那些ip
        deny: 192.168.120.93
    # WebStatFilter配置 web-jdbc关联监控
      web-stat-filter:
        enabled: true
        url-pattern: "/*"
        exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"