一、Spring Boot Admin用於管理和監控一個或者多個Spring Boot程序。Spring Boot Admin分為Server端和Client 端,Client端可以通過向Http Server端注冊,也可以結合SpringCloud的服務注冊組件Eureka 進行注冊。SpringBoot Admin 提供了用AngularJs 寫的 Ul 界面,用於管理和監控。其中監控內容包括Spring Boot的監控組件Actuator的各個Http節點,也支持更高級的功能,包括Turbine、Jmx、Loglevel 等。
二、直接使用Spring Boot Admin監控客戶端
1、Admin Server
(1)加入依賴
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>de.codecentric</groupId> <artifactId>spring-boot-admin-starter-server</artifactId> <version>2.0.4</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency>
(2)編寫啟動項
package com.cetc; import de.codecentric.boot.admin.server.config.EnableAdminServer; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @EnableAdminServer public class AdminServerApplication { public static void main(String[] args) { SpringApplication.run(AdminServerApplication.class, args); } }
(3)編寫配置文件application.yaml
server: port: 8691 spring: application: name: admin-server management: endpoints: web: exposure: include: ["*"] endpoint: health: show-details: always
2、Admin Client,為了簡單使用,我這里還是通過feign的方式去接入Eureka的服務。
(1)目錄結構和Spring-Cloud之Feign聲明式調用-4類似,這里全部寫出來,有興趣可以看下方源碼
(2)加入依賴
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--admin-client--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>de.codecentric</groupId> <artifactId>spring-boot-admin-starter-client</artifactId> <version>2.0.4</version> </dependency> <!--admin-client-->
(3)啟動項沒有什么特別的,這里直接編寫配置文件application.yaml
server: port: 8692 spring: application: name: admin-client boot: admin: client: url: ["http://127.0.0.1:8691"] # 配置注冊的admin Server服務 eureka: client: service-url: defaultZone: http://127.0.0.1:8670/eureka/ # 實際開發中建議使用域名的方式 management: endpoints: web: exposure: include: ["*"] endpoint: health: show-details: always logfile: external-file: logs/log.log # 這里的配置主要是在admin server中看到日志記錄 logging: path: logs file: logs/log.log # 日志配置
3、測試。啟動Eureka-Server,Eureka-Client,Admin-Server,Admin-Client。端口分別為:8670、8673、8691、8692。
(1)Eureka-Server注冊效果
(2)Admin-Server效果
三、讓Admin-Server通過Eureka注冊中心來監控所有服務(這才是重點),這里還加入了Security配置,主要目的是為了安全。
1、Admin-Server
(1)所需依賴
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>de.codecentric</groupId> <artifactId>spring-boot-admin-starter-server</artifactId> <version>2.0.4</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency>
說明:spring-boot-admin-starter-server的版本選擇要慎重,不然會有很多坑。
(2)編寫啟動項
package com.cetc; 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 @EnableAdminServer @EnableEurekaClient public class AdminServerApplication { public static void main(String[] args) { SpringApplication.run(AdminServerApplication.class, args); } }
(3)編寫Security配置,這里也可以參考官網配置:https://codecentric.github.io/spring-boot-admin/2.0.4/#_securing_spring_boot_admin_server
package com.cetc.config; import org.springframework.context.annotation.Configuration; import org.springframework.security.config.annotation.web.builders.HttpSecurity; import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; @Configuration @EnableWebSecurity public class SecurityConfiguration extends WebSecurityConfigurerAdapter{ @Override protected void configure(HttpSecurity http) throws Exception { http .csrf().disable() .authorizeRequests()
.antMatchers("/assets/**").permitAll() .anyRequest().authenticated() .and() //說明:這里和官網不同的是,因為默認端口為/login,所以我這里直接放開login.html就可以了不用配置loginProcessingUrl //在說明一點,這里是采用的本地頁面的。如果前后端分開,請配具體的登錄接口。 .formLogin() .loginPage("/login.html").permitAll() .and() //默認接口/logout,不用配置logoutUrl .logout() .logoutSuccessUrl("/login.html") .and() //這里必須加入httpBasic,因為Eureka-Server是基於最原始的方式進行驗證的。 .httpBasic(); } }
(4)編寫配置文件
server: port: 8691 spring: application: name: admin-server security: user: name: admin password: admin # 加入登錄密碼 eureka: client: service-url: defaultZone: http://127.0.0.1:8670/eureka/ # 實際開發中建議使用域名的方式 instance: metadata-map: user.name: ${spring.security.user.name} user.password: ${spring.security.user.password} management: endpoints: web: exposure: include: ["*"] endpoint: health: show-details: always # 顯示具體詳情
說明:metadata-map,主要用於方向驗證使用。
2、Admin-Client這里不需要修改任何配置,只需要注冊配置文件手動注冊的配置
server: port: 8692 spring: application: name: admin-client # boot: # admin: # client: # url: ["http://127.0.0.1:8691"] # 配置注冊的admin Server服務 eureka: client: service-url: defaultZone: http://127.0.0.1:8670/eureka/ # 實際開發中建議使用域名的方式 management: endpoints: web: exposure: include: ["*"] endpoint: health: show-details: always logfile: external-file: logs/log.log # 這里的配置主要是在admin server中看到日志記錄 logging: path: logs file: logs/log.log # 日志配置
3、測試。啟動Eureka-Server,Eureka-Client,Admin-Server,Admin-Client。端口分別為:8670、8673、8691、8692。
(1)Eureka-Server效果
(2)Admin-Server效果
說明:為什么Eureka-Client是INSTANCES DOWN的狀態。這里服務其實是正常的,最主要的點在於Eureka-Client沒有配置actuator。所以訪問不到/acturtor/health接口。
四、源碼地址:https://github.com/lilin409546297/spring-cloud/tree/master/admin