Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about how to add a Spring Boot Admin monitor. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

0. Preface

Here is another important project in the Spring Cloud microservice-Spring boot admin.

1. Spring Boot Admin introduction

Spring Boot Admin is used to monitor Spring Boot-based applications and provides a concise visual Web UI on the basis of Spring Boot Actuator. Spring Boot Admin provides the following features:

Displays the health status of the application

Display the details of the application: JVM and memory information, micrometer information, data source information, cache information, etc.

Show compiled version

View and download logs

View jvm parameters and environment variable values

View Spring Boot project configuration

Show thread dump

Show http-traces

……

Wait for a series of contents.

two。 Create a Spring Boot Admin project

So, let's create a Spring Boot Admin project.

2.1 create a Spring Boot Admin server

Under the manager directory, create a monitor directory, and create a pom.xml file under the monitor directory, adding the following:

4.0.0

Monitor

${revision}

Jar

Manager

Club.attachie

${revision}

Register our new project module at manager/pom.xml:

Gateway

Monitor

Create the following directory in monitor:

.

├── pom.xml

└── src

└── main

├── java

└── resources

Add Spring Boot Admin dependencies in the pom.xml of the root directory:

Add the spring-boot-admin version number variable first:

2.2.3

And under dependencyManagement > dependencies, add:

De.codecentric

Spring-boot-admin-starter-server

${spring-boot-admin.version}

Add to the monitor/pom.xml file:

Org.springframework.boot

Spring-boot-starter-web

De.codecentric

Spring-boot-admin-starter-server

Running

Mvn clean install

Check and brush the mvn reference cache.

Create the MonitorApplication class:

Package club.attachie.nature.monitor

Import de.codecentric.boot.admin.server.config.EnableAdminServer

Import org.springframework.boot.SpringApplication

Import org.springframework.boot.autoconfigure.SpringBootApplication

@ SpringBootApplication

@ EnableAdminServer

Public class MonitorApplication {

Public static void main (String [] args) {

SpringApplication.run (MonitorApplication.class, args)

}

}

After startup, you can see the following interface:

3 interworking with gateway service

In the previous article, we added the Spring Cloud Gateway project, and so far the two projects are completely fragmented and unrelated. In this section, we establish a connection between the two. That is, introduce the gateway project into Spring Admin Boot snooping.

Add the following reference to the pom.xml file of manager/gateway:

Org.springframework.boot

Spring-boot-starter-actuator

Then modify the startup port of the gateway project and add:

Server:

Port: 8070

Add a nacos reference to monitor:

Com.alibaba.cloud

Spring-cloud-starter-alibaba-nacos-discovery

Org.springframework.boot

Spring-boot-starter-actuator

Modify the MonitorApplication to:

Package club.attachie.nature.monitor

Import de.codecentric.boot.admin.server.config.EnableAdminServer

Import org.springframework.boot.SpringApplication

Import org.springframework.boot.autoconfigure.SpringBootApplication

Import org.springframework.cloud.context.config.annotation.RefreshScope

@ SpringBootApplication

@ EnableAdminServer

@ RefreshScope

Public class MonitorApplication {

Public static void main (String [] args) {

SpringApplication.run (MonitorApplication.class, args)

}

}

Create the bootsrap.yml for the monitor project:

Spring:

Application:

Name: monitor

Cloud:

Nacos:

Discovery:

Server-addr: 127.0.0.1:8848

There was an error about the configuration here in the previous article, which should be discovery > server-addr, not config > server-addr. There is a difference between the two. Discovery means to set nacos as the service discovery center and config to indicate that nacos is the configuration center.

Start the gateway project and the monitor project to view the results, and access port 8080:

You can see that two applications can be found. If you do not set up the monitor project to use nacos as a service discovery center, you will not be able to get specific online applications. Click gateway to go in and you can see:

We set up a Spring Boot Admin project as a monitoring system.

The above is the editor for you to share how to add a Spring Boot Admin monitoring, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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