SpringBoot项目的Druid监控配置

蔚落 2022-05-12 16:16 276阅读 0赞

**1. 引入druid的Maven依赖**

<dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.1.12</version>
    </dependency>

**2. application.yml配置**

druid:
      resetEnable: false
      #管理员账号
      loginUsername: admin
      #管理员密码
      loginPassword: 123
      #访问IP限制
      allow: '127.0.0.1,192.135.0.1/24'
    datasource:
      driver-class-name: com.mysql.cj.jdbc.Driver
      jdbc-url: jdbc:mysql://127.0.0.1:3306/test?useSSL=false
      username: root
      password: 123
      #连接数初始化大小，最小，最大
      initialSize: 5
      min-idle: 5
      max-active: 20
      # 配置获取连接等待超时的时间
      max-wait-millis: 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
      time-between-eviction-runs-millis: 3600000
      # 配置一个连接在池中最小生存的时间，单位是毫秒
      min-evictable-idle-time-millis: 3600000
      # 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: slf4j,wall,stat
      # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
      connection-properties: 'defaultRowPrefetch=5000;druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500'
      # 合并多个DruidDataSource的监控数据
      use-global-data-source-stat: true
      #校验SQL
      validation-query: SELECT 'x'
      test-while-idle: true
      test-on-borrow: true
      test-on-return: false
      # 打开PSCache（缓存游标），并且指定每个连接上PSCache的大小
      poolPreparedStatements: true
      maxPoolPreparedStatementPerConnectionSize: 20
      #其他
      default-auto-commit: true
      connection-init-sqls: ["set names utf8"]

**3. druid配置对应实体类**

@Configuration
    @ConfigurationProperties(prefix = "druid")
    @Data
    public class DruidProperties {
        private String resetEnable;
        private String loginUsername;
        private String loginPassword;
        private String allow;
    }

**4. druid监控配置**

@Configuration
    public class DruidConfig {
    
        @Bean
        public StatFilter statFilter() {
            return new StatFilter();
        }
    
        @Bean
        public WallConfig wallConfig() {
            return new WallConfig();
        }
    
        @Bean
        public WallFilter wallFilter(WallConfig wallConfig) {
            WallFilter filter = new WallFilter();
            filter.setConfig(wallConfig);
            return filter;
        }
    
        @Bean
        public Slf4jLogFilter slf4jLogFilter() {
            return new Slf4jLogFilter();
        }
    
        @Bean
        public FilterRegistrationBean filterRegistrationBean() {
            FilterRegistrationBean<Filter> filterRegistrationBean = new FilterRegistrationBean<>();
            filterRegistrationBean.setFilter(new WebStatFilter());
            filterRegistrationBean.addUrlPatterns("/*");
            filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
            filterRegistrationBean.setOrder(5);
            return filterRegistrationBean;
        }
    
        @Bean
        @Autowired
        public ServletRegistrationBean druidServlet(DruidProperties druidProperties) {
            ServletRegistrationBean<StatViewServlet> servletRegistrationBean
                    = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");
            servletRegistrationBean.addInitParameter("resetEnable",druidProperties.getResetEnable());
            servletRegistrationBean.addInitParameter("loginUsername",druidProperties.getLoginUsername());
            servletRegistrationBean.addInitParameter("loginPassword",druidProperties.getLoginPassword());
            servletRegistrationBean.addInitParameter("allow",druidProperties.getAllow());
            return servletRegistrationBean;
        }
    
        @Bean
        public Advice advice() {
            return new DruidStatInterceptor();
        }
    
        //patterns指定Mapper接口
        @Bean
        public Advisor advisor() {
            String[] patterns = new String[]{"com.myproject.test.query.*.mapper.*",
                    "com.myproject.test.*.domain.repository.*"};
            return new RegexpMethodPointcutAdvisor(patterns, advice());
        }
    
        @Bean
        public DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator() {
            DefaultAdvisorAutoProxyCreator advisorAutoProxyCreator = new DefaultAdvisorAutoProxyCreator();
            advisorAutoProxyCreator.setProxyTargetClass(true);
            return advisorAutoProxyCreator;
        }
    }

5. Druid官方配置参考

[GitHub][]

[GitHub]: https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98