Springboot into God--the Monitor

• Spring Boot's Monitor
  • Depend on
  • Configuration
  • Writing monitoring Controller
  • Some of the commonly used built-in endpoint
  • Defining Actuator/info Special Endpoint
  • Actuator/shutdown requires a POST request to access

Spring Boot's Monitor

This feature is used to control spring boot programs and view program information

Depend on

<dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-actuator</artifactId>    <version>2.0.4.RELEASE</version></dependency><dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-web</artifactId></dependency>

Configuration

spring.datasource.url=jdbc:mysql://localhost:3306/mydb?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true&useSSL=false&allowPublicKeyRetrieval=truespring.datasource.username=rootspring.datasource.password=123spring.datasource.driver-class-name=com.mysql.jdbc.Driverserver.tomcat.uri-encoding=UTF-8# 程序运行端口server.port=8888# 监视程序运行端口management.server.port=8090# 激活所有的内置Endpointsmanagement.endpoints.web.exposure.include=*# 开启shutdown这个endpointmanagement.endpoint.shutdown.enabled=true

Writing monitoring Controller

  package Com.springlearn.learn.controller;import javax.servlet.http.HttpServletRequest; Import Org.springframework.stereotype.controller;import org.springframework.web.bind.annotation.RequestMapping; Import Org.springframework.web.bind.annotation.ResponseBody; @Controllerpublic class maincontroller{@ResponseBody @ Requestmapping ("/getendpoints") public String Getallpoint (HttpServletRequest request) {string path = Request.get        ContextPath ();        String host = Request.getservername ();        String Endpointpath = "/actuator";                StringBuilder sb = new StringBuilder ();        Sb.append (" 

Some of the commonly used built-in endpoint

actuator/health         查看程序健康信息actuator/metrics        查看监视标准actuator/beans          列出程序中的Spring BEAN actuator/env            列出程序运行所有信息

Defining Actuator/info Special Endpoint

actuator/info可以自定义一些信息书写如下代码即可访问package com.springlearn.learn.selfactuator;import java.util.HashMap;import java.util.Map;import org.springframework.boot.actuate.info.Info;import org.springframework.boot.actuate.info.InfoContributor;import org.springframework.stereotype.Component;@Componentpublic class BuildInfoActuator implements InfoContributor{    @Override    public void contribute(Info.Builder builder) {        Map<String,String> data= new HashMap<String,String>();        data.put("build.version", "1.0.0");        builder.withDetail("buildInfo", data);    }}

Actuator/shutdown requires a POST request to access

Can be used to close the program define the following controller can package Com.springlearn.learn.controller;import Org.springframework.http.httpentity;import Org.springframework.http.httpheaders;import Org.springframework.http.mediatype;import Org.springframework.stereotype.controller;import Org.springframework.web.bind.annotation.requestmapping;import Org.springframework.web.bind.annotation.responsebody;import org.springframework.web.client.resttemplate;@ Controllerpublic class Shutdowncontroller {@ResponseBody @RequestMapping (path = "/shutdown") public String Actua        Torshutdown () {String URL = "Http://localhost:8090/actuator/shutdown";        Httpheaders headers = new Httpheaders ();        Headers.add ("Accept", Mediatype.application_json_value);        Headers.setcontenttype (Mediatype.application_json);        Resttemplate resttemplate = new Resttemplate ();        httpentity<string> requestbody = new Httpentity<> ("", headers);    String e = resttemplate.postforobject (URL, requestbody, string.class);    Return "Result:" + E; }}

Springboot into God--monitor