SpringCloud集成系统监控

曾经终败给现在 2022-04-23 13:38 424阅读 0赞

### 文章目录 ###

*  系统监控
 *  源码
 *   *  system-monitoring
 *  运行
 *  Actuator的URL API

# 系统监控 #

Actuator是Spring Boot提供的一种集成功能，可以实现对应用系统的运行时状态管理、配置查看以及相关功能统计。

初始化Spring Boot监控需要引入Spring Boot Actuator组件，而Spring Boot Actuator组件又依赖于Spirng HATEOAS组件，所以需要在pom中添加如下两个依赖：

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.hateoas</groupId>
        <artifactId>spring-hateoas</artifactId>
    </dependency>

# 源码 #

Maven父类与之前的文章中的相一致，详情请参考：[SpringCloud集成Spring Data Redis][SpringCloud_Spring Data Redis]

## system-monitoring ##

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    
    <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/xsd/maven-4.0.0.xsd">
        <parent>
            <artifactId>springcloud-parent2</artifactId>
            <groupId>com.lyc</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>system-monitoring</artifactId>
    
        <name>system-monitoring</name>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.hateoas</groupId>
                <artifactId>spring-hateoas</artifactId>
            </dependency>
        </dependencies>
    
    </project>

SystemMonitoringApplication启动类

package com.lyc.systemMonitoring;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /** * @author: zhangzhenyi * @date: 2019/3/11 19:31 * @description: SystemMonitoring启动类 **/
    @SpringBootApplication
    public class SystemMonitoringApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(SystemMonitoringApplication.class,args);
        }
    
    }

# 运行 #

当启动Spring Boot应用程序时，启动日志里会自动添加autoconfig、dump、beans、actuator、health等多个HTTP的端点。当访问`http://localhost:8080/actuator`时，其得到的HATEOAS风格的HTTP响应如下：

{
    "links": [
    {
    "rel": "self",
    "href": "http://localhost:8080/actuator"
    },
    {
    "rel": "health",
    "href": "http://localhost:8080/health"
    },
    {
    "rel": "mappings",
    "href": "http://localhost:8080/mappings"
    },
    {
    "rel": "beans",
    "href": "http://localhost:8080/beans"
    },
    {
    "rel": "loggers",
    "href": "http://localhost:8080/loggers"
    },
    {
    "rel": "autoconfig",
    "href": "http://localhost:8080/autoconfig"
    },
    {
    "rel": "metrics",
    "href": "http://localhost:8080/metrics"
    },
    {
    "rel": "configprops",
    "href": "http://localhost:8080/configprops"
    },
    {
    "rel": "env",
    "href": "http://localhost:8080/env"
    },
    {
    "rel": "heapdump",
    "href": "http://localhost:8080/heapdump"
    },
    {
    "rel": "trace",
    "href": "http://localhost:8080/trace"
    },
    {
    "rel": "info",
    "href": "http://localhost:8080/info"
    },
    {
    "rel": "auditevents",
    "href": "http://localhost:8080/auditevents"
    },
    {
    "rel": "dump",
    "href": "http://localhost:8080/dump"
    }
    ]
    }

# Actuator的URL API #

上述url对应的Actuator端点列表如下：

<table> 
 <thead> 
  <tr> 
   <th>http方法</th> 
   <th>路径</th> 
   <th>描述</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>get</td> 
   <td>/autoconfig</td> 
   <td>提供了一份自动配置报告，描述当前环境中加载的自动配置项</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/configprops</td> 
   <td>描述配置属性（包含默认值）如何注入Bean</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/beans</td> 
   <td>描述应用程序上下文里全部的Bean以及它们的关系</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/dump</td> 
   <td>获取线程活动的快照</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/env</td> 
   <td>获取全部环境属性</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/env/{name}</td> 
   <td>根据名称获取特定的环境属性值</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/health</td> 
   <td>报告应用程序的健康指标，这些值由HealthIndicator的实现类提供</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/info</td> 
   <td>获取应用程序的定制信息，这些信息由info打头的属性提供</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>mappings</td> 
   <td>描述全部的URI路径，以及它们和Controller（包含Actuator端点）的映射关系</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/metrics</td> 
   <td>报告各种应用程序度量信息，如内存用量和HTTP请求计数</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/metrics/{name}</td> 
   <td>报告指定名称的应用程序度量值</td> 
  </tr> 
  <tr> 
   <td>post</td> 
   <td>/shutdown</td> 
   <td>关闭应用程序，要求endpoint.shutdown.enabled设置为true</td> 
  </tr> 
  <tr> 
   <td>get</td> 
   <td>/trace</td> 
   <td>提供基本的HTTP请求跟踪信息（包括时间戳、HTTP头等）</td> 
  </tr> 
 </tbody> 
</table>

[SpringCloud_Spring Data Redis]: https://blog.csdn.net/ZZY1078689276/article/details/88384650