31、Spring Cloud 中整合Zipkin进行服务跟踪zipkin-client

      上一篇简介了Zipkin Server的搭建，但是从Spring boot 2.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

Zipkin server：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/4.0.0 http://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/4.0.0 http://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）