spring-boot configure Druid monitoring

Introduction

In the development process, when we debug a program, we may want to view the execution time of a SQL statement, we may also want to see the request response time of a request. If the database connection pool you are using is Druid. Then you do not need to code, embedded in a large number of System.out.print(System.currentTimeMillis())or logger.debug(), but rather directly configured to use monitoring platform Druid offer.

POM dependency

<!-- Druid连接池 -->
<dependency>
	<groupId>com.alibaba</groupId>
	<artifactId>druid-spring-boot-starter</artifactId>
	<version>1.1.9</version>
</dependency>

Configuration class

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 javax.sql.DataSource;

@Configuration
public class DruidConfig {
    @Bean
    public ServletRegistrationBean druidServlet() {// 主要实现web监控的配置处理
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(
                new StatViewServlet(), "/druid/*");//表示进行druid监控的配置处理操作
        //servletRegistrationBean.addInitParameter("allow", "127.0.0.1,192.168.202.233");//白名单
        //servletRegistrationBean.addInitParameter("deny", "192.168.202.234");//黑名单
        servletRegistrationBean.addInitParameter("loginUsername", "admin");//用户名
        servletRegistrationBean.addInitParameter("loginPassword", "123456");//密码
        servletRegistrationBean.addInitParameter("resetEnable", "false");//是否可以重置数据源
        return servletRegistrationBean;
    }
 
    @Bean    //监控
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new WebStatFilter());
        filterRegistrationBean.addUrlPatterns("/*");//所有请求进行监控处理
        filterRegistrationBean.addInitParameter("exclusions", "/static/*,*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");//排除静态资源访问以及德鲁伊本身接口
        return filterRegistrationBean;
    }
 
    @Bean
    @ConfigurationProperties(prefix = "spring.datasource.druid")
    public DataSource druidDataSource() {
        return new DruidDataSource();
    }
}

Visit the monitoring page