随着开发周期的推移, 项目会不断变大, 切分出的服务也会越来越多, 这时一个个的微服务构成了错综复杂的系统。对于各个微服务系统的健康状态, 会话数量, 并发数, 服务资源, 延迟等度量信息的收集称成为了一个挑战。Spring Boot Admin应运而生, 它正是基于这些需求开发出的一套功能强大的监控管理系统。
Spring Boot Admin有两个角色组成, 一个是Spring Boot Admin Server, 一个是Spring Boot Admin Client.
Spring Boot Admin服务端
创建Spring Boot Admin Server
创建一个工程名为hello-spring-cloud-admin的项目, pom.xml文件如下:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.funtl</groupId>
<artifactId>hello-spring-cloud-dependencies</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../hello-spring-cloud-dependencies/pom.xml</relativePath>
</parent>
<artifactId>hello-spring-cloud-admin</artifactId>
<packaging>jar</packaging>
<name>hello-spring-cloud-admin</name>
<url>http://www.funtl.com</url>
<inceptionYear>2018-Now</inceptionYear>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</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>org.jolokia</groupId>
<artifactId>jolokia-core</artifactId>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.funtl.hello.spring.cloud.admin.AdminApplication</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>
Application
通过@EnableAdminServer注解开启Admin功能
package com.funtl.hello.spring.cloud.admin;
import de.codecentric.boot.admin.server.config.EnableAdminServer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
@SpringBootApplication
@EnableEurekaClient
@EnableAdminServer
public class AdminApplication {
public static void main(String[] args) {
SpringApplication.run(AdminApplication.class, args);
}
}
application.yml
设置端口号为: 8084
spring:
application:
name: hello-spring-cloud-admin
zipkin:
base-url: http://localhost:9411
server:
port: 8084
management:
endpoint:
health:
show-details: always
endpoints:
web:
exposure:
include: ["health","info"]
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka
Spring Boot Admin客户端
创建Spring Boot Admin Client
创建一个工程名为hello-spring-cloud-admin-client的项目, pom.xml文件如下
<dependency>
<groupId>org.jolokia</groupId>
<artifactId>jolokia-core</artifactId>
</dependency>
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-client</artifactId>
</dependency>
Application
程序入口类没有特别需要修改的地方
application.yml
boot:
admin:
client:
url: http://localhost:8084
启动顺序
1. 注册与发现
2. 分布式配置中心
3. 服务提供者
4. 服务消费者
5. API网关