springboot admin如何实现监控

        
            de.codecentric
            spring-boot-admin-starter-server
            2.1.4
        
        
            org.springframework.boot
            spring-boot-starter-security
        
        
            org.springframework.boot
            spring-boot-starter-web
            
                
                org.springframework.boot
                spring-boot-starter-tomcat
                
            
        
        
            org.springframework.boot
            spring-boot-starter-jetty
        
    

server:
  port: 9000
  servlet:
    context-path: /monitor
spring:
  application:
    name: server
  security:
    user:
      name: admin
      password: 123456

management:
  health:
    redis:
      enabled: false
  endpoint:
    health:
      show-details: always

@EnableAdminServer
@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})
public class ServerApplication {

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

@Configuration
public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {

    //项目应用路径
    private final String adminContextPath;

    public WebSecurityConfigurer(AdminServerProperties adminServerProperties) {
        this.adminContextPath = adminServerProperties.getContextPath();
    }

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

        http.authorizeRequests()
                //无需登录即可访问
                .antMatchers(adminContextPath + "/assets/**").permitAll()
                .antMatchers(adminContextPath + "/login").permitAll()
                .anyRequest().authenticated()
                .and()

                //登录和登出路径
                .formLogin().loginPage(adminContextPath + "/login").successHandler(successHandler).and()
                .logout().logoutUrl(adminContextPath + "/logout").and()

                //开启http basic支持，admin-client注册时需要使用
                .httpBasic().and()
                .csrf()

                //开启基于cookie的csrf保护
                .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
                //忽略这些路径的csrf保护以便admin-client注册
                .ignoringAntMatchers(
                        adminContextPath + "/instances",
                        adminContextPath + "/actuator/**"
                );
    }
}

@Component
public class HttpHeadersProviderConfig implements HttpHeadersProvider {

    @Value("${monitor.custom}")
    private String custom;

    @Override
    public HttpHeaders getHeaders(Instance instance) {
        HttpHeaders httpHeaders = new HttpHeaders();
        //设置约定好的请求头参数
        httpHeaders.add("spring-boot-admin-service", custom);
        return httpHeaders;
    }
}

@Component
public class CustomNotifierConfig extends AbstractStatusChangeNotifier {

    public CustomNotifierConfig(InstanceRepository repository) {
        super(repository);
    }

    @Override
    protected Mono doNotify(InstanceEvent event, Instance instance) {
        return Mono.fromRunnable(() -> {
            if (event instanceof InstanceStatusChangedEvent) {
                System.out.println("实例名称："+instance.getRegistration().getName());
                System.out.println("实例服务地址："+instance.getRegistration().getServiceUrl());
                String status = ((InstanceStatusChangedEvent) event).getStatusInfo().getStatus();
                switch (status) {
                    case "DOWN":
                        System.out.println("健康检查没通过！");
                        break;
                    case "OFFLINE":
                        System.out.println("服务离线！");
                        break;
                    case "UP":
                        System.out.println("服务上线！");
                        break;
                    case "UNKNOWN":
                        System.out.println("服务未知异常！");
                        break;
                    default:
                        System.out.println(status);
                        break;
                }
            }
        });
    }
}

        
            de.codecentric
            spring-boot-admin-starter-client
            2.1.4
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.boot
            spring-boot-starter-logging
        
    

management:
  health:
    redis:
      enabled: false
  endpoint:
    shutdown:
      enabled: true
    health:
      show-details: always
    logfile:
      external-file: /opt/logs/client.log #生成的日志地址
      enabled: true
  endpoints:
    enabled-by-default: true
    web:
      exposure:
        include: '*'
spring:
  application:
    name: client
  boot:
    admin:
      client:
        url: http://127.0.0.1:9000/monitor  #server请求地址
        username: admin  #server用户名
        password: 123456 #server密码
logging:
  config: classpath:config/log.xml

@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})
public class ClientApplication {

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

@WebFilter
@ServletComponentScan
@Component
public class ActuatorFilter implements Filter {

    @Value("${monitor.custom:9001}")
    private String adminServicePort;//和服务端的monitor.custom必须一致，服务端请求才能通过，日志等相关功能才能正常获取，并过滤掉非服务端的异常请求

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;

        //判断约定好的请求头参数
        if (request.getRequestURI().contains("/actuator") && !adminServicePort.equals(request.getHeader("spring-boot-admin-service"))){
            throw new RuntimeException("抱歉，你无权限访问，Actuator端口受保护！ Sorry, you have no permission to access it，Actuator port protected！");
        }

        filterChain.doFilter(servletRequest, servletResponse);
    }
}

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