spring boot admin
spring boot admin：用来监控spring boot服务。
原理：把spring boot actuator中endpoint暴露出来的json数据进行可视化显示到界面上。
可以通过Eureka监控注册到其中的服务。
demo使用spring boot2.1版本：https://github.com/tinazhao1985/spring-cloud-demo/tree/master/spring-boot-admin
Eureka Server：
maven：
yml：
server:
port: 8081
eureka:
instance:
hostname: localhost
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
启动类：
@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}
Admin Server：
maven：
yml：
spring:
application:
name: admin-server
profiles:
active:
- secure
server:
port: 8082
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
health-check-url-path: /actuator/health
client:
registryFetchIntervalSeconds: 5
serviceUrl:
defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8081}/eureka/
management:
endpoints:
web:
exposure:
include: "*"
endpoint:
health:
show-details: ALWAYS
---
spring:
profiles: insecure
---
spring:
profiles: secure
security:
user:
name: "admin"
password: "admin"
eureka:
instance:
metadata-map:
user.name: "admin"
user.password: "admin"
启动类：
@Configuration
@EnableAutoConfiguration
@EnableAdminServer // 开启监控功能
@EnableEurekaClient // 把 Spring Boot Admin注册到Eureka里，就可以发现注册到Eureka里的其他服务实例
public class AdminServerApplication {
public static void main(String[] args) {
SpringApplication.run(AdminServerApplication.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 + "/login").permitAll()
.anyRequest().authenticated()
.and()
.formLogin().loginPage(adminContextPath + "/login").successHandler(successHandler).and()
.logout().logoutUrl(adminContextPath + "/logout").and()
.httpBasic().and()
.csrf().disable();
// @formatter:on
}
}
}
Service Demo：
maven：
yml：
spring:
application:
name: service-demo
server:
port: 8083
eureka:
instance:
leaseRenewalIntervalInSeconds: 10
health-check-url-path: /actuator/health
client:
registryFetchIntervalSeconds: 5
serviceUrl:
defaultZone: http://localhost:8081/eureka/,http://localhost:8082/eureka/
management:
endpoints:
web:
exposure:
include: '*'
启动类：
@EnableDiscoveryClient
@SpringBootApplication
public class ServiceDemoApplication {
public static void main(String[] args) {
SpringApplication.run(ServiceDemoApplication.class, args);
}
}
依次启动Eureka Server，Admin Server，Service Demo，在浏览器中打开admin UI：http://localhost:8082/login
登陆后可以看到有两个服务被监控：（admin服务本身和一个demo服务）
进入demo服务，可以看到该服务的线程、JVM等实时信息。
