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【前言】
Spring Boot Admin做爲生產級的監控工具，必然自動化告警必不可少；Spring Boot Admin可以十分簡單的集成告警組件；最近研究一下集成郵件告警到項目中，在此與大家共享；
【集成告警模塊】
一、集成告警模塊（在此以郵件告警爲例）
1、Spring Boot Admin服務端集成（以zh-monitor爲例）
（1）Pom中增加郵箱依賴
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
（2）配置文件（application.properties）中增加郵箱相關配置
#****************************alerm email***************************
spring.mail.host=smtp.163.com
[email protected]
#注意:此密碼爲客戶端的授權碼而非郵箱密碼
spring.mail.password=xxxxx
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
[email protected]
[email protected]
（3）啓動zh-monitor報錯處理
A.報錯信息如下:
javax.mail.AuthenticationFailedException: 535 Error: authentication failed
at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:965) ~[javax.mail-1.6.2.jar:1.6.2]
at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:876) ~[javax.mail-1.6.2.jar:1.6.2]
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:780) ~[javax.mail-1.6.2.jar:1.6.2]
at javax.mail.Service.connect(Service.java:366) ~[javax.mail-1.6.2.jar:1.6.2]
at org.springframework.mail.javamail.JavaMailSenderImpl.connectTransport(JavaMailSenderImpl.java:515) ~[spring-context-support-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.mail.javamail.JavaMailSenderImpl.testConnection(JavaMailSenderImpl.java:396) ~[spring-context-support-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.boot.actuate.mail.MailHealthIndicator.doHealthCheck(MailHealthIndicator.java:43) ~[spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:84) ~[spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:98) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.actuate.health.HealthEndpoint.health(HealthEndpoint.java:50) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_144]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_144]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:246) [spring-core-5.1.3.RELEASE.jar:5.1.3.RELEASE]
at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:76) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:61) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:126) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:99) [spring-boot-actuator-2.1.1.RELEASE.jar:2.1.1.RELEASE]
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_144]
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_144]
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_144]
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_144]
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_144]
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) [na:1.8.0_144]
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_144]
at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144]
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_144]
at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_144]
at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_144]
at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_144]
at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_144]
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) [na:1.8.0_144]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) [na:1.8.0_144]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) [na:1.8.0_144]
at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_144]
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) [na:1.8.0_144]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_144]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_144]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_144]
B.報錯原因：配置的郵箱不允許客戶端訪問，授權碼不正確
C.解決方案：開啓客戶端授權登錄，並在配置文件中配置正確授權碼；在此以163郵箱爲例
2、Spring Boot Admin客戶端無需改動
二、查看效果
1、啓動zh-boot
2、啓動zh-monitor
3、停止zh-boot項目，收到服務停止郵件
4、啓動zh-boot項目，收到服務啓動郵件
三、項目地址：
1、地址：https://github.com/dangnianchuntian/springboot
2、代碼版本：1.6.0-Release
【總結】
1、自動化告警是生產級別項目必不可少一個重要組成部分，有了告警可以讓我們知道線上項目發生了什麼；
2、接下來會爲大家共享多關於SpringBootAdmin模塊。