Spring boot 集成druid数据库连接池，实现对数据库的监控

Spring Boot默认的数据源是：org.apache.tomcat.jdbc.pool.DataSource

Druid是Java语言中最好的数据库连接池，并且能够提供强大的监控和扩展功能。

请注意在使用Springboot 启动时，注意将该文件放置在启动文件的同级目录，使得启动的时候能加载到该bean

主要的Bean

ServletRegistrationBean

FilterRegistrationBean

import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
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;

/**
* 这样的方式不需要添加注解：@ServletComponentScan
* Created by winner_0715 on 2017/4/19.
*/
@Configuration
public class DruidConfiguration {

/**
* 注册一个StatViewServlet
*
* @return
*/
@Bean
public ServletRegistrationBean DruidStatViewServle2() {
//org.springframework.boot.context.embedded.ServletRegistrationBean提供类的进行注册.
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid2/*");

//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", "admin2");
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 druidStatFilter2() {

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,/druid2/*");
return filterRegistrationBean;
}

}

参考文章：

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