SpringBoot系列之Druid进行维度的统计和监控

  4.0.0
  com.example
  demo
  war
  1.0-SNAPSHOT
  demo Maven Webapp

  
    UTF-8
    1.8
    1.0.24
    5.1.27
    1.4.5
  

  
    org.springframework.boot
    spring-boot-starter-parent
    1.5.1.RELEASE
    
  

  
    
      junit
      junit
      3.8.1
      test
    

    
      org.springframework.boot
      spring-boot-starter-web
    

    
      org.springframework.boot
      spring-boot-starter-actuator
    

    
      org.springframework.boot
      spring-boot-starter-test
      test
    

    
      de.codecentric
      spring-boot-admin-starter-client
      ${spring-boot-admin.version}
    

    
      org.springframework.boot
      spring-boot-starter
    

    
      com.alibaba
      druid
      ${druid.version}
    

    
      mysql
      mysql-connector-java
      ${mysql.version}
    

  
  
    
      
        org.springframework.boot
        spring-boot-maven-plugin
      
      
        org.springframework.boot
        spring-boot-maven-plugin 
        
          
          
            org.springframework
            springloaded
            ${basedir}/src/main/webapp/WEB-INF/lib/springloaded-1.2.5.RELEASE.jar
          
        
        
          
            
              repackage
            
            
              exec
            
          
        
      
    
  

###application.properties配置###

server.context-path=/springbootdemo

#数据库访问配置
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/myblog
spring.datasource.username=root
spring.datasource.password=root

#数据源配置，初始化大小、最小、最大
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
#连接等待超时时间
spring.datasource.maxWait=60000
#配置隔多久进行一次检测(检测可以关闭的空闲连接)
spring.datasource.timeBetweenEvictionRunsMillis=60000
#配置连接在池中的最小生存时间
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 打开PSCache，并且指定每个连接上PSCache的大小
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
spring.datasource.filters=stat,wall,log4j
# 通过connectProperties属性来打开mergeSql功能；慢SQL记录
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000

###方式一原生的servlet和filter方式###
编写Servlet类：

package com.example.web.servlet;

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

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

/**
 * Created by Administrator on 2017/4/28.
 */
@WebServlet(urlPatterns = "/druid/*",
        initParams = {
                @WebInitParam(name = "allow", value = "192.168.10.25,127.0.0.1"),// IP白名单 (没有配置或者为空，则允许所有访问)
                @WebInitParam(name = "deny", value = "192.168.1.73"),// 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 = "123"),// 密码
                @WebInitParam(name = "resetEnable", value = "false")// 禁用HTML页面上的“Reset All”功能)
        }
)
public class DruidStatViewServlet extends StatViewServlet{

}

Filter类：

package com.example.web.filter;

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

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

/**
 * Created by Administrator on 2017/4/28.
 */
@WebFilter(filterName="druidWebStatFilter",urlPatterns="/*",
        initParams={
                @WebInitParam(name="exclusions",value="*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*")// 忽略资源
        }
)
public class DruidWebStatFilter extends WebStatFilter{

}

然后，需要在Spring Boot启动类里设置Servlet自动扫描，不然会出现404页面找不到错误，使用@ServletComponentScan注解

package com;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.scheduling.annotation.EnableAsync;

@SpringBootApplication
@ServletComponentScan
@EnableAsync
public class Application implements EmbeddedServletContainerCustomizer {

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

	@Override
	public void customize(ConfigurableEmbeddedServletContainer configurableEmbeddedServletContainer) {
		configurableEmbeddedServletContainer.setPort(8087);
	}

}

###方式二使用代码注册Servlet和Filter###

package com.example.config;

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;

/**
 * Created by Administrator on 2017/4/28.
 */
@Configuration
public class DruidConfiguration {

    /**
     * 注册ServletRegistrationBean
     * @return
     */
    @Bean
    public ServletRegistrationBean registrationBean() {
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid1/*");
        /** 初始化参数配置，initParams**/
        //白名单
        bean.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.
        bean.addInitParameter("deny", "192.168.1.73");
        //登录查看信息的账号密码.
        bean.addInitParameter("loginUsername", "admin2");
        bean.addInitParameter("loginPassword", "123");
        //是否能够重置数据.
        bean.addInitParameter("resetEnable", "false");
        return bean;
    }

    /**
     * 注册FilterRegistrationBean
     * @return
     */
    @Bean
    public FilterRegistrationBean druidStatFilter() {
        FilterRegistrationBean bean = new FilterRegistrationBean(new WebStatFilter());
        //添加过滤规则.
        bean.addUrlPatterns("/*");
        //添加不需要忽略的格式信息.
        bean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid2/*");
        return bean;
    }

}

###项目监控###
然后输入url访问，我的项目访问路径：http://localhost:8087/springbootdemo/druid/login.html，这个需要自己修改，我的Context配置为springbootdemo，端口配置为8087，这些可以参考我上一篇博客

通过平台进行监控