Spring Boot使用Druid进行维度的统计和监控

时间:2022-03-10 21:20:08

Druid

Druid:一款为监控而生的数据库连接池框架,整个项目由数据库连接池、插件框架和SQL解析器组成。

Druid功能介于PowerDrill和Dremel之间,它几乎实现了Dremel的所有功能,并且从PowerDrill吸收一些有趣的数据格式。Druid允许以类似Dremel和PowerDrill的方式进行单表查询,同时还增加了一些新特性,如为局部嵌套数据结构提供列式存储格式、为快速过滤做索引、实时摄取和查询、高容错的分布式体系架构等。

Spring Boot

spring框架作为JavaEE框架领域的一款重要的开源框架,在企业应用开发中有着很重要的作用,同时Spring框架及其子框架很多,所以知识量很广。

Spring Boot:一款Spring框架的子框架,也可以叫微框架,是2014年推出的一款使Spring框架开发变得容易的框架。学过Spring框架的都知识,Spring框架难以避免地需要配置不少XMl,而使用Spring Boot框架的话,就可以使用注解开发,极大地简化基于Spring框架的开发。

Spring Boot充分利用了JavaConfig的配置模式以及“约定优于配置”的理念,能够极大的简化基于Spring MVC的Web应用和REST服务开发。

然后通过本文给大家介绍基于IDEA编辑器的Spring Boot项目创建和部署。

Spring Boot使用Druid监控

maven配置

要配置spring Boot实现一个Demo的话,只要加入spring-boot-starter(核心模块)和spring-boot-starter-web(因为这个一个Web项目),可以参考我的配置,这里使用了Spring Boot热部署,需要去github上搜索jar:springloaded-1.2.4.RELEASE.jar,然后下载放在项目的lib文件夹里,可以参考我的配置

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.example</groupId>
 <artifactId>demo</artifactId>
 <packaging>war</packaging>
 <version>1.0-SNAPSHOT</version>
 <name>demo Maven Webapp</name>
 <properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <java.version>1.8</java.version>
  <druid.version>1.0.24</druid.version>
  <mysql.version>5.1.27</mysql.version>
  <spring-boot-admin.version>1.4.5</spring-boot-admin.version>
 </properties>
 <parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>1.5.1.RELEASE</version>
  <relativePath/>
 </parent>
 <dependencies>
  <dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <version>3.8.1</version>
   <scope>test</scope>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-actuator</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-test</artifactId>
   <scope>test</scope>
  </dependency>
  <dependency>
   <groupId>de.codecentric</groupId>
   <artifactId>spring-boot-admin-starter-client</artifactId>
   <version>${spring-boot-admin.version}</version>
  </dependency>
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter</artifactId>
  </dependency>
  <dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>druid</artifactId>
   <version>${druid.version}</version>
  </dependency>
  <dependency>
   <groupId>mysql</groupId>
   <artifactId>mysql-connector-java</artifactId>
   <version>${mysql.version}</version>
  </dependency>
 </dependencies>
 <build>
  <plugins>
   <plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin</artifactId>
   </plugin>
   <plugin>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-maven-plugin </artifactId>
    <dependencies>
     <!--springloaded hot deploy -->
     <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>springloaded</artifactId>
      <systemPath>${basedir}/src/main/webapp/WEB-INF/lib/springloaded-1.2.5.RELEASE.jar</systemPath>
     </dependency>
    </dependencies>
    <executions>
     <execution>
      <goals>
       <goal>repackage</goal>
      </goals>
      <configuration>
       <classifier>exec</classifier>
      </configuration>
     </execution>
    </executions>
   </plugin>
  </plugins>
 </build>
</project>

application.properties配置

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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:

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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:

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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

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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

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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

Spring Boot使用Druid进行维度的统计和监控

通过平台进行监控 

Spring Boot使用Druid进行维度的统计和监控

以上所述是小编给大家介绍的Spring Boot使用Druid进行维度的统计和监控,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!

原文链接:http://blog.csdn.net/u014427391/article/details/70890506