方式一
在 Spring Boot 项目中，Spring Boot Admin 作为 Server 端，其他的要被监控的应用作为 Client 端，基于这种的配置如下步骤：
AdminServer
de.codecentric
spring-boot-admin-starter-server
2.1.0
org.springframework.boot
spring-boot-starter-web
server:
port: 8788
@SpringBootApplication
@EnableAdminServer
public class AdminServerApplication {
public static void main(String[] args) {
SpringApplication.run(AdminServerApplication.class, args);
}
}
AdminClient
org.springframework.boot
spring-boot-starter
de.codecentric
spring-boot-admin-starter-client
2.1.0
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
test
spring:
boot:
admin:
client:
url: "http://localhost:8788"
application:
name: admin-client
management:
endpoints:
web:
exposure:
include: "*"
endpoint:
health:
show-details: always
-
spring.boot.admin.client.url:要注册的Spring Boot Admin Server的URL -
management.endpoints.web.exposure.include：与Spring Boot 2一样，默认情况下，大多数actuator的端口都不会通过http公开，* 代表公开所有这些端点。对于生产环境，应该仔细选择要公开的端点。
@SpringBootApplication
public class AdminClientApplication {
public static void main(String[] args) {
SpringApplication.run(AdminClientApplication.class, args);
}
}
启动两个工程，在浏览器上输入localhost:8788
方式二 集成 Eureka
在 Spring Cloud 中基于 Eureka 的 Spring Boot Admin 的搭建：
1.启动Eureka,端口8761
2.新建 module（springboot-admin）
de.codecentric
spring-boot-admin-starter-server
2.0.1-SNAPSHOT
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-security
org.springframework.cloud
spring-cloud-starter-netflix-eureka-client
org.jolokia
jolokia-core
3.启动类添加注解
@Configuration
@EnableAutoConfiguration
@EnableAdminServer
@EnableEurekaClient
public class SpringBootAdminApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootAdminApplication.class, args);
}
@Profile("insecure")
@Configuration
public static class SecurityPermitAllConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().anyRequest().permitAll()//
.and().csrf().disable();
}
}
@Profile("secure")
@Configuration
public static class SecuritySecureConfig extends WebSecurityConfigurerAdapter {
private final String adminContextPath;
public SecuritySecureConfig(AdminServerProperties adminServerProperties) {
this.adminContextPath = adminServerProperties.getContextPath();
}
@Override
protected void configure(HttpSecurity http) throws Exception {
// @formatter:off
SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();
successHandler.setTargetUrlParameter("redirectTo");
http.authorizeRequests()
.antMatchers(adminContextPath + "/assets/**").permitAll()
.antMatchers(adminContextPath + "/login").permitAll()
.anyRequest().authenticated()
.and()
.formLogin().loginPage(adminContextPath + "/login").successHandler(successHandler).and()
.logout().logoutUrl(adminContextPath + "/logout").and()
.httpBasic().and()
.csrf().disable();
// @formatter:on
}
}
}
SecurityPermitAllConfig和SecuritySecureConfig的配置是 Spring Boot Admin 官方给的配置，是对 url 进行安全认证等配置，照着配置即可。@EnableEurekaClient 注解是把 Spring Boot Admin 注册到 Eureka 里，这样 Spring Boot Admin 就可以发现注册到 Eureka 里的其他服务实例，@EnableAdminServer 注解是开启监控功能。
4.配置文件
resource目录下新建bootstrap.yaml文件：
spring:
application:
name: spring-boot-admin
profiles:
active:
- secure
server:
port: 8788
# tag::configuration-eureka[]
eureka: #<1>
instance:
leaseRenewalIntervalInSeconds: 10
health-check-url-path: /actuator/health
client:
registryFetchIntervalSeconds: 5
serviceUrl:
defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8761}/eureka/
management:
endpoints:
web:
exposure:
include: "*" #<2>
endpoint:
health:
show-details: ALWAYS
# end::configuration-eureka[]
---
spring:
profiles: insecure
---
spring:
profiles: secure
security:
user:
name: "user"
password: "password"
mail:
host: smtp.163.com
username: ***@163.com # 用户名
password: *******
boot:
admin:
notify:
mail:
from: ***@163.com # 发件人
to: ***@qq.com # 收件人
enabled: true
eureka:
instance:
metadata-map:
user.name: ${spring.security.user.name} #These two are needed so that the server
user.password: ${spring.security.user.password} #can access the protected client endpoints
5.启动 spring boot admin 服务
此时由于 Eureka 里只有 Spring Boot Admin 自身已注册，所以其监控列表里只有自己，下面我们启动其他的服务，让其注册到 Eureka 里。
启动 spring-demo-service 服务
Actuator 在 spring boot 2.0 版本后，只暴露了两个端点，所以此时启动，监控不到所需的信息
server:
port: 8281
eureka:
client:
serviceUrl:
# 向每个注册中心注册
defaultZone: http://localhost:8761/eureka/,http://localhost:8762/eureka/
spring:
application:
name: spring-demo-service
management:
endpoints:
web:
exposure:
include: '*'
endpoint:
health:
show-details: ALWAYS
此时启动 spring-demo-service，发现监控列表里 spring-demo-service 已经有了
集成邮件通知
1.引入依赖
org.springframework.boot
spring-boot-starter-mail
2.添加配置
spring:
mail:
host: smtp.163.com
username: [email protected] # 用户名
password: hao4267364
boot:
admin:
notify:
mail:
from: [email protected] # 发件人
to: [email protected] # 收件人
enabled: true
eureka:spring:
mail:
host: smtp.163.com
username: ***@163.com # 用户名
password: ***
boot:
admin:
notify:
mail:
from: ***@163.com # 发件人
to: ***@qq.com # 收件人
enabled: true
eureka:
配置后，重启sc-admin-server工程，之后若出现注册的客户端的状态从 UP 变为 OFFLINE 或其他状态，服务端就会自动将电子邮件发送到上面配置的收件地址。
注意 : 配置了邮件通知后，会出现 反复通知 service offline / up。这个问题的原因在于 查询应用程序的状态和信息超时，下面给出两种解决方案：
#方法一：增加超时时间（单位:ms）
spring.boot.admin.monitor.read-timeout=20000
#方法二：关闭闭未使用或不重要的检查点
management.health.db.enabled=false
management.health.mail.enabled=false
management.health.redis.enabled=false
management.health.mongo.enabled=false
参考博文
Spring Boot Admin 详解（Spring Boot 2.0，基于 Eureka 的实现）
解决 Spring Cloud 的服务应用配置 context-path 后 Spring Boot Admin 监控不到信息的问题
https://github.com/shmilyah/spring-cloud-componets