使用SpringBoot简单了解Druid的监控系统的配置方法

 com.alibaba
 druid
 1.1.10

spring:
 datasource: # Springboot默认会使用自带的 HikariDataSource
 password: root
 username: root
 url: jdbc:mysql://localhost:3306/test&＃63;useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezOne=Asia/Shanghai
 driver-class-name: com.mysql.cj.jdbc.Driver
 type: com.alibaba.druid.pool.DruidDataSource # 指定使用 druid 的连接池

package com.springboot.druid.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * 对 Druid 的监控配置对象注入到容器中
 * Created by YongXin Xue on 2020/06/04 15:18
 */
@Configuration
public class DruidConfig {
 /**
  *
  * @return
  */
 @Bean // 当前类如果是组件类，对象创建时容器也会调用此方法将方法的返回值注入到容器中
 @ConfigurationProperties(prefix = "spring.datasource") // 加载配置文件中的配置设置给返回的对象
 public DruidDataSource getDataSoures(){
  return new DruidDataSource();
 }

 /**
  * 配置一个管理后台的Servlet [ 配置Druid的监控系统 ]
  * 访问时默认会生成一个页面
  * @return
  */
 @Bean
 public ServletRegistrationBean statViewServlet() {
  // 当前 Druid 的后台监控系统的访问地址 /druid/*
  ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");

  Map initParams = new HashMap<>();
  initParams.put("loginUsername", "admin");
  initParams.put("loginPassword", "admin");
  // 默认就是允许所有访问
  initParams.put("allow", "");
  initParams.put("deny", "192.168.15.21");//ip黑名单

  bean.setInitParameters(initParams);
  return bean;
 }

 /**
  * 配置一个web监控的filter：访问静态资源一定没有sql操作
  * @return
  */
 @Bean
 public FilterRegistrationBean webStatFilter() {
  FilterRegistrationBean bean = new FilterRegistrationBean();
  bean.setFilter(new WebStatFilter());

  Map initParams = new HashMap<>();
  //排除过滤
  initParams.put("exclusions", "*.jpg,*.avi,*.js,*.css,/druid/*");

  bean.setInitParameters(initParams);
  bean.setUrlPatterns(Arrays.asList("/*"));
  return bean;
 }
}