SpringCloud 2.x之Spring Cloud 中整合Zipkin进行服务跟踪zipkin

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上一篇简介了ZipkinServer的搭建，但是从Spring boot2.x版本后，Zipkin官网已经不再推荐自己搭建定制Zipkin，而是直接提供了编译好的jar包。详情可以查看官网：

https://zipkin.io/pages/quickstart.html

有了Zipkin Server还不能对微服务的调用链路进行人祸监控，Zipkin Server可以被认为是一个数据处理和展示中心，那它的数据哪里来呢？需要Zipkin Client作为代理连接到Zipkin Server源源不断的上送过来。今天讲解一下如何在微服务中引入Zipkin Client，然后结合Zipkin Server监控各微服务间的调用链路。整体调用链路图如下：

涉及的项目：

注册中心：sc-eureka-server

Zipkinserver：sc-zipkin-server

微服务：sc-zipkin-client-web、sc-zipkin-client-service

1、新建项目sc-zipkin-client-service，对应的pom.xml文件如下

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">

   <modelVersion>4.0.0</modelVersion>



   <groupId>spring-cloud</groupId>

   <artifactId>sc-zipkin-client-service</artifactId>

   <version>0.0.1-SNAPSHOT</version>

   <packaging>jar</packaging>



   <name>sc-zipkin-client-service</name>

   <url>http://maven.apache.org</url>

   <parent>

      <groupId>org.springframework.boot</groupId>

      <artifactId>spring-boot-starter-parent</artifactId>

      <version>2.0.4.RELEASE</version>

   </parent>



   <dependencyManagement>

      <dependencies>

        <dependency>

           <groupId>org.springframework.cloud</groupId>

           <artifactId>spring-cloud-dependencies</artifactId>

           <version>Finchley.RELEASE</version>

           <type>pom</type>

           <scope>import</scope>

        </dependency>



      </dependencies>

   </dependencyManagement>



   <properties>

      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

      <maven.compiler.source>1.8</maven.compiler.source>

      <maven.compiler.target>1.8</maven.compiler.target>

   </properties>



   <dependencies>

      <dependency>

        <groupId>org.springframework.cloud</groupId>

         <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>

      </dependency>



      <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>

</project>

备注：主要引入了spring-cloud-starter-zipkin，说明这是一个zipkin client。

2、新建配置文件application.yml

eureka:

  client:

    serviceUrl:

      defaultZone:http://localhost:5001/eureka/  

server:

  port: 9201

spring:

  application:

    name: sc-zipkin-client-service

  zipkin:

base-url:http://localhost:9000

3、 sc-zipkin-client-service（普通的微服务）项目其他项目文件如下图

4、新建项目sc-zipkin-client-web，对应的pom.xml文件如下

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">

   <modelVersion>4.0.0</modelVersion>



   <groupId>spring-cloud</groupId>

   <artifactId>sc-zipkin-client-web</artifactId>

   <version>0.0.1-SNAPSHOT</version>

   <packaging>jar</packaging>



   <name>sc-zipkin-client-web</name>

   <url>http://maven.apache.org</url>



   <parent>

      <groupId>org.springframework.boot</groupId>

      <artifactId>spring-boot-starter-parent</artifactId>

      <version>2.0.4.RELEASE</version>

   </parent>



   <dependencyManagement>

      <dependencies>

        <dependency>

           <groupId>org.springframework.cloud</groupId>

           <artifactId>spring-cloud-dependencies</artifactId>

           <version>Finchley.RELEASE</version>

           <type>pom</type>

           <scope>import</scope>

        </dependency>



      </dependencies>

   </dependencyManagement>



   <properties>

      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

      <maven.compiler.source>1.8</maven.compiler.source>

      <maven.compiler.target>1.8</maven.compiler.target>

   </properties>



   <dependencies>

      <dependency>

        <groupId>org.springframework.cloud</groupId>

         <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>

      </dependency>



      <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>



      <dependency>

        <groupId>org.springframework.cloud</groupId>

        <artifactId>spring-cloud-starter-openfeign</artifactId>

      </dependency>

   </dependencies>

</project>

`备注：同样引入了spring-cloud-starter-zipkin，说明是一个zipkin client

5、新建配置文件application.yml

eureka:

  client:

    serviceUrl:

      defaultZone:http://localhost:5001/eureka/



server:

  port: 9202

spring:

  application:

    name: sc-zipkin-client-web

  zipkin:

    base-url: http://localhost:9000

6、 sc-zipkin-client-web（普通的微服务）项目其他项目文件如下图

7、验证

项目启动顺序：

sc-eureka-server

sc-zipkin-server

sc-zipkin-client-service

sc-zipkin-client-web

访问注册中心：http://127.0.0.1:5001/

服务都已经注册成功

访问Zinkin Server：http://localhost:9000/zipkin/

目前zipkin server没有记录任何的微服务调用链路数据。

分别访问接口：

http://127.0.0.1:9202/user/listUser

http://127.0.0.1:9202/user/getUser/1

再次查看Zipkin Server（如果没有出现可以多访问几次接口，Zipkin需要更多的监控数据）

源码：

https://gitee.com/hjj520/spring-cloud-2.x/tree/master/sc-zipkin-client-web
https://gitee.com/hjj520/spring-cloud-2.x/tree/master/sc-zipkin-client-service

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