【SpringBoot】基于注解配置druid SQL监控

前言

       最近刚敲了个springboot的小例子，配置一下druid练练手。

步骤

  添加需要依赖包

 
      com.alibaba
      druid
      1.0.5
 

数据库配置：

# druid
spring.datasource.url=jdbc:mysql://XX:3306/XX?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true&useSSL=false
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.filters=stat
spring.datasource.maxActive=1000
spring.datasource.initialSize=100
spring.datasource.maxWait=60000
spring.datasource.minIdle=500
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=select 'x'
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.poolPreparedStatements=true
spring.datasource.maxOpenPreparedStatements=20

创建一个配置类

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;

/**
 * Created by sms on 2018/7/29.
 */
@Configuration
public class DruidConfig {
    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druidDataSource() {
        DruidDataSource druidDataSource = new DruidDataSource();
        return druidDataSource;
    }
}

配置监控拦截器

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

import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;

/**
 * Created by sms on 2018/7/29.
 */
@WebFilter(filterName="druidWebStatFilter",urlPatterns="/*",
        initParams={
                @WebInitParam(name="exclusions",value="*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*")// 忽略资源
        })
public class DruidStatFilter extends WebStatFilter{
}

配置监控视图

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

import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;

/**
 * Created by sms on 2018/7/29.
 */
@WebServlet(urlPatterns = "/druid/*",
        initParams={
                @WebInitParam(name="allow",value=""),// IP白名单 (没有配置或者为空，则允许所有访问)
                @WebInitParam(name="deny",value=""),// IP黑名单 (存在共同时，deny优先于allow)
                @WebInitParam(name="loginUsername",value="admin"),// 用户名
                @WebInitParam(name="loginPassword",value="admin"),// 密码
                @WebInitParam(name="resetEnable",value="false")// 禁用HTML页面上的“Reset All”功能
        })
public class DruidStatViewServlet extends StatViewServlet {
}

在启动类添加注解 @ServletComponentScan

@SpringBootApplication
//配置druid必须加的注解，如果不加，访问页面打不开，filter和servlet、listener之类的需要单独进行注册才能使用，spring boot里面提供了该注解起到注册作用
@ServletComponentScan
public class MainApplication{

    public static void main(String[] args)throws Exception{
        SpringApplication.run(MainApplication.class,args);
    }

}

项目启动地址栏中输入可以看到durid登录页面，用户名密码是DruidStatViewServlet 配置的。