Springboot结合druid进行SQL的监控

1、添加maven依赖

 
    com.alibaba
    druid
    1.0.18

2、在application.properties添加以下内容

spring.datasource.type=com.alibaba.druid.pool.DruidDataSource //在这里面配置经在Spring boot1.5.8版本下测试无效，需要手动注册druid数据源
spring.datasource.filters=stat,wall,log4j
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
spring.datasource.useGlobalDataSourceStat=true

3、创建一个配置

package com.example.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.beans.factory.annotation.Value;
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;
import java.util.Properties;

@Configuration
@ConfigurationProperties(value ="classpath:application.properties")
public class DruidConfiguration {

    /**
     * 注册一个StatViewServlet
     *
     * @return
     */

    @Bean
    public ServletRegistrationBean DruidStatViewServle() {

        //org.springframework.boot.context.embedded.ServletRegistrationBean提供类的进行注册.
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        //添加初始化参数：initParams
        //白名单：

        //servletRegistrationBean.addInitParameter("allow", "127.0.0.1");

        //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.

        //servletRegistrationBean.addInitParameter("deny", "192.168.1.73");
        //登录查看信息的账号密码.
        servletRegistrationBean.addInitParameter("loginUsername", "admin");
        servletRegistrationBean.addInitParameter("loginPassword", "123456");
        //是否能够重置数据.
        servletRegistrationBean.addInitParameter("resetEnable", "false");
        return servletRegistrationBean;
    }

    /**
     * 注册一个：filterRegistrationBean
     * @return
     */

    @Bean
    public FilterRegistrationBean druidStatFilter(){
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        //添加过滤规则.
        filterRegistrationBean.addUrlPatterns("/*");
        //添加不需要忽略的格式信息.
        filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        return filterRegistrationBean;
    }

    @Bean//如果不手动注册数据源，就不会显示SQL监控数据，所以这里采用了手动注册数据源方式
    public DataSource dataSource() throws Exception{
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setUrl(dbUrl);
        dataSource.setUsername(userName);
        dataSource.setPassword(password);
        dataSource.setDriverClassName(driverClassName);
        dataSource.setFilters("stat,wall,log4j");

        Properties properties = new Properties();
        properties.put("druid.stat.mergeSql","true");
        properties.put("druid.stat.slowSqlMillis","5000");
        dataSource.setConnectProperties(properties);

        dataSource.setUseGlobalDataSourceStat(true);

        return dataSource;
    }

    @Value("${spring.datasource.url}")
    private String dbUrl;

    @Value("${spring.datasource.username}")
    private String userName;

    @Value("${spring.datasource.driver-class-name}")
    private String driverClassName;

    @Value("${spring.datasource.password}")
    private String password;

}