SpringCloud2.0 zipkin简单demo

简介

Zipkin是一个分布式跟踪系统，Sleuth负责为服务之间的调用提供链路追踪，而Zipkin用于收集在微服务体系结构中延迟问题排除所需的定时数据。通俗来说就是收集各微服务应用的接口调用过程所消耗的时间数据，方便开发人员快速定位解决接口性能问题。

相应依赖

spring-cloud-starter-zipkin中已包含了spring-cloud-starter-sleuth与spring-cloud-sleuth-zipkin的依赖，所以使用sleuth-zipkin的SpringCloud项目只需添加spring-cloud-starter-zipkin依赖即可

快速开始

根模块

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pom.xml

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
    </parent>

    <properties>
        <zipkin-version>2.11.8</zipkin-version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-zipkin</artifactId>
                <version>2.0.1.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>io.zipkin.java</groupId>
                <artifactId>zipkin-server</artifactId>
                <version>${zipkin-version}</version>
            </dependency>
            <dependency>
                <groupId>io.zipkin.java</groupId>
                <artifactId>zipkin-autoconfigure-ui</artifactId>
                <version>${zipkin-version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

cloud-zipkin模块

pom.xml

<dependencies>
   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-web</artifactId>
   </dependency>
   <dependency>
       <groupId>org.springframework.cloud</groupId>
       <artifactId>spring-cloud-starter-zipkin</artifactId>
   </dependency>
   <dependency>
       <groupId>io.zipkin.java</groupId>
       <artifactId>zipkin-server</artifactId>
   </dependency>
   <dependency>
       <groupId>io.zipkin.java</groupId>
       <artifactId>zipkin-autoconfigure-ui</artifactId>
   </dependency>
</dependencies>

ZipkinApplication.java

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import zipkin2.server.internal.EnableZipkinServer;
 
 @SpringBootApplication
 @EnableZipkinServer
 public class ZipkinApplication {
     public static void main(String[] args) {
         SpringApplication.run(ZipkinApplication.class);
     }
 }

application.xml

server:
  port: 9411
  #port: 9000
spring:
   application:
     name: zipkin
   #zipkin:
     #base-url: http://localhost:9000/
management:
   metrics:
     web:
       server:
       #避免访问zipkin页面报java.lang.IllegalArgumentException
         auto-time-requests: false

cloud-consumer模块

pom.xml

<dependencies>
     <dependency>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-starter-zipkin</artifactId>
     </dependency>
     <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-web</artifactId>
     </dependency>
</dependencies>

ConsumerApplication.java

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class ConsumerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConsumerApplication.class);
    }

    @GetMapping("/index")
    public String index() {
        return "index";
    }
}

application.yml

server:
  port: 9999
spring:
  application:
    name: consumer
  sleuth:
    sampler:
      probability: 1.0   #2.0后percentage改为probability

执行结果

访问消费者接口http://localhost:9999/index，在刷新zipkin页面便可发现consumer服务已添加到Service Name选择框，点击下侧服务名上的蓝色框即可查看该次接口调用的详细信息。
注:若不调用相应接口对应的服务名不会显示到选择框，一开始还以为自己配置错了。
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Demo Github url:https://github.com/Wilson-He/spring-cloud-zipkin-demo