前言

Spring Boot Admin 就是将 Spring Boot Actuator中提供的endpoint信息可视化表示，并且可以通过邮件、Telegram、Hipchat等发送告警消息。

集成

注意一定要版本对应，否则会出现意想不到的问题，建议使用Srping Boot Admin 2.0+以上版本，可以多语言切换。

父项目

pom.xml引入：

<modules>
        <module>admin-server</module>
        <module>admin-client</module>
</modules>

<parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.2.2.RELEASE</version>
      <relativePath/>
</parent>
<dependencies>
      <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
      </dependency>
      <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
      </dependency>
</dependencies>

监控服务端

pom.xml引入：

<artifactId>admin-server</artifactId>
<dependencies>
      <dependency>
          <groupId>de.codecentric</groupId>
          <artifactId>spring-boot-admin-starter-server</artifactId>
          <version>2.2.1</version>
      </dependency>
      <!--登录认证-->
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-security</artifactId>
      </dependency>
      <!--掉线发送邮件通知-->
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-mail</artifactId>
      </dependency>
</dependencies>

application.properties配置文件：

# 爪哇笔记：https://blog.52itstyle.vip
server.port=9000
spring.application.name=SpringBootAdmin
spring.security.user.name=admin
spring.security.user.password=admin
spring.boot.admin.monitor.status-interval = 10000
spring.boot.admin.monitor.info-interval = 10000

spring.mail.host = smtp.163.com
spring.mail.username = 13188888888@163.com
spring.mail.password = 2020
spring.boot.admin.notify.mail.from = 13188888888@163.com
spring.boot.admin.notify.mail.to = 88888888@qq.com

启动类：

/**
 * 系统监控
 * 爪哇笔记：https://blog.52itstyle.vip
 */
@Configuration
@EnableAutoConfiguration
@EnableAdminServer
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Configuration
    public static class SecuritySecureConfig extends WebSecurityConfigurerAdapter {

        private final AdminServerProperties adminServer;

        public SecuritySecureConfig(AdminServerProperties adminServer) {
            this.adminServer = adminServer;
        }

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();
            successHandler.setTargetUrlParameter("redirectTo");
            successHandler.setDefaultTargetUrl(this.adminServer.path("/"));

            http.authorizeRequests()
                    .antMatchers(this.adminServer.path("/assets/**")).permitAll()
                    .antMatchers(this.adminServer.path("/login")).permitAll()
                    .anyRequest().authenticated()
                    .and()
                    .formLogin().loginPage(this.adminServer.path("/login")).successHandler(successHandler).and()
                    .logout().logoutUrl(this.adminServer.path("/logout")).and()
                    .httpBasic().and()
                    .csrf()
                    .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
                    .ignoringRequestMatchers(
                            new AntPathRequestMatcher(this.adminServer.path("/instances"), HttpMethod.POST.toString()),
                            new AntPathRequestMatcher(this.adminServer.path("/instances/*"), HttpMethod.DELETE.toString()),
                            new AntPathRequestMatcher(this.adminServer.path("/actuator/**"))
                    )
                    .and()
                    .rememberMe().key(UUID.randomUUID().toString()).tokenValiditySeconds(1209600);
        }
    }
}

监控客户端

pom.xml引入：

<artifactId>admin-client</artifactId>
<dependencies>
    <dependency>
        <groupId>de.codecentric</groupId>
        <artifactId>spring-boot-admin-starter-client</artifactId>
        <version>2.2.1</version>
    </dependency>
</dependencies>

application.properties配置文件：

# 爪哇笔记：https://blog.52itstyle.vip
spring.boot.admin.client.instance.name = 007
spring.boot.admin.client.url= http://localhost:9000
management.endpoints.web.exposure.include=*
spring.boot.admin.client.username = admin
spring.boot.admin.client.password = admin
spring.boot.admin.client.period = 10000
spring.boot.admin.client.connect-timeout = 5000
spring.boot.admin.client.read-timeout = 5000
spring.boot.admin.client.instance.service-url = http://localhost:8080

监控界面

小结

不得不说，2.X 版本还是很美观大气上档次的，并且监控告警功能齐全，小微服务必备神器。

参考

https://blog.52itstyle.vip/archives/5052/

https://github.com/codecentric/spring-boot-admin

https://codecentric.github.io/spring-boot-admin/2.2.1/