SpringBoot service monitoring -SpringBootAdmin

• github Address: github.com/codecentric...
• Documents Address: codecentric.github.io/spring-boot...

Use SpringBootAdmin divided into two parts in the project: the server and the client. The client provides health from birth to the server via http way

• version: <spring.boot.admin.version>2.1.6</spring.boot.admin.version>

1. Build the server project

• Server dependent

             <dependency>
                <groupId>de.codecentric</groupId>
                <artifactId>spring-boot-admin-starter-server</artifactId>
                <version>${spring.boot.admin.version}</version>
            </dependency>
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• Mark notes on startup class@EnableAdminServer
• Set Port

server:
  port: 8080
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• You can start

---

If there is an error:

2019-11-02 09:50:14.924 ERROR 55391 --- [nio-8080-exec-2] o.a.catalina.connector.CoyoteAdapter     : Exception while processing an asynchronous request

java.lang.IllegalStateException: Calling [asyncError()] is not valid for a request with Async state [MUST_DISPATCH]
	at org.apache.coyote.AsyncStateMachine.asyncError(AsyncStateMachine.java:440) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:512) [tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.coyote.Request.action(Request.java:430) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.catalina.core.AsyncContextImpl.setErrorState(AsyncContextImpl.java:396) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(CoyoteAdapter.java:239) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.coyote.AbstractProcessor.dispatch(AbstractProcessor.java:241) [tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53) [tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) [tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) [tomcat-embed-core-9.0.16.jar:9.0.16]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.16.jar:9.0.16]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_191]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_191]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.16.jar:9.0.16]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_191]
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• Tomcat will replace jetty

 <dependencies>
        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-server</artifactId>
        </dependency>
        <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>
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Complete project source code github.com/FutaoSmile/...

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2. The client - service needs to be monitored

• Adding clients rely

       <dependency>
            <groupId>org.jolokia</groupId>
            <artifactId>jolokia-core</artifactId>
        </dependency>
        <!-- https://codecentric.github.io/spring-boot-admin/2.1.6/#getting-started-->
        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-client</artifactId>
            <version>2.1.6</version>
        </dependency>
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• Configure the server's address SpringBootAdmin

spring:
    boot:
        admin:
          client:
            url: http://localhost:8080

management:
  endpoints:
    web:
      exposure:
        include: "*"
  endpoint:
    health:
      show-details: always
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• Start SpringBoot client project
• Access server configuration address:http://localhost:8080

• If there is no data, like this
  This is because your SpringBoot project encapsulates data monitoring endpoint returned, returned from the Info data structure can be seen.
• The solution is not to let the data SpringBoot package monitors endpoints returned
• If you are using @RestControllerAdvicethe constraint about the package path@RestControllerAdvice("com.west.lake.blog.controller")

• Request log and time-consuming monitoring request

• Cache Manager