使用zipkin2在SpringCloud2.0环境下追踪服务调用情况

2022-02-25 21:25:15

1.目的：

使用zipkin2.0在Spring Cloud 2.0环境下，追踪服务调用情况。

2.所需组件：

zipkin2.0,Spring Cloud 2.0,Eureka Server,Eureka Client.

3.项目整体组成

如下图所示：

使用zipkin2在SpringCloud2.0环境下追踪服务调用情况

4.详细介绍及配置：

zipkinp的pom配置为：

<?xml version="1.0" encoding="UTF-8"?>

<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.</modelVersion>

    <groupId>com.****</groupId>

    <artifactId>zipkin-p</artifactId>

    <version>1.0-SNAPSHOT</version>

    <packaging>pom</packaging>

    <modules>

        <module>customer</module>

        <module>eurekaserver</module>

        <module>service</module>

    </modules>

    <parent>

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

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

        <version>2.0..RELEASE</version>

    </parent>

    <properties>

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

        <project.reporting.outputEncoding>UTF-</project.reporting.outputEncoding>

        <java.version>1.8</java.version>

        <zipkin-version>2.11.</zipkin-version>

    </properties>

    <dependencyManagement>

        <dependencies>

            <dependency>

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

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

                <version>2.0..RELEASE</version>

            </dependency>

            <!--            <dependency>

                            <artifactId>parent</artifactId>

                            <groupId>io.zipkin.zipkin2</groupId>

                            <version>${zipkin-version}</version>

                            <scope>import</scope>

                        </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>

</project>

zipkinserver项目的pom文件配置如下：

<?xml version="1.0" encoding="UTF-8"?>

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.</modelVersion>

    <parent>

        <groupId>com.****</groupId>

        <artifactId>zipkin-p</artifactId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <groupId>com.****</groupId>

    <artifactId>zipkinserver</artifactId>

    <version>0.0.-SNAPSHOT</version>

    <name>zipkinserver</name>

    <packaging>jar</packaging>

    <description>Demo project for Spring Boot</description>

    <properties>

        <java.version>1.8</java.version>

    </properties>

    <dependencies>

        <dependency>

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

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

        </dependency>

        <dependency>

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

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

            <version>2.0..RELEASE</version>

        </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>

    <build>

        <plugins>

            <plugin>

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

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>

配置完成后，在启动类，配置如下：

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

import zipkin2.server.internal.EnableZipkinServer;

@EnableZipkinServer

@EnableDiscoveryClient

@SpringBootApplication

public class ZipkinserverApplication {

    public static void main(String[] args) {

        SpringApplication.run(ZipkinserverApplication.class, args);

    }

}

之后，配置yaml文件：

server:

  port: 9411

eureka:

  instance:

    prefer-ip-address: true

    hostname: localhost

  client:

    service-url:

      defaultZone: http://admin:123456@localhost:8888/eureka/

spring:

  application:

    name: zipkinserver

配置eurekaserver项目，pom及启动类的配置如下：

<?xml version="1.0" encoding="UTF-8"?>

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.</modelVersion>

    <parent>

        <groupId>com.****</groupId>

        <artifactId>zipkin-p</artifactId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <groupId>com.****</groupId>

    <artifactId>eurekaserver</artifactId>

    <version>0.0.-SNAPSHOT</version>

    <name>eurekaserver</name>

    <description>Demo project for Spring Boot</description>

    <dependencies>

        <dependency>

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

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

        </dependency>

        <dependency>

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

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

            <version>2.0..RELEASE</version>

        </dependency>

        <dependency>

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

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

        </dependency>

        <dependency>

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

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

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

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

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>
import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@EnableEurekaServer

@SpringBootApplication

public class EurekaserverApplication {

    public static void main(String[] args) {

        SpringApplication.run(EurekaserverApplication.class, args);

    }

}

配置完成后，配置yaml文件：

server:

  port: 8888

eureka:

  instance:

    hostname: localhost

    lease-expiration-duration-in-seconds: 60

    lease-renewal-interval-in-seconds: 20

  client:

    registerWithEureka: false

    fetchRegistry: false

    serviceUrl:

      defaultZone: http://admin:123456@${eureka.instance.hostname}:${server.port}/eureka/

    healthcheck:

      enabled: true

spring:

  application:

    name: euraka-server

management:

  endpoint:

    health:

      enabled: true

login:

  user:

    name: admin

    password: 123456

至此Eureka配置完成，剩下配置service及customer项目，先看service项目：

<?xml version="1.0" encoding="UTF-8"?>

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <parent>

        <groupId>com.****</groupId>

        <artifactId>zipkin-p</artifactId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <groupId>com.****</groupId>

    <artifactId>service</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>service</name>

    <description>Demo project for Spring Boot</description>

    <dependencies>

        <dependency>

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

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

        </dependency>

        <dependency>

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

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

            <version>2.0.1.RELEASE</version>

        </dependency>

        <dependency>

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

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

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

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

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>
import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@EnableDiscoveryClient

@SpringBootApplication

public class ServiceApplication {

    public static void main(String[] args) {

        SpringApplication.run(ServiceApplication.class, args);

    }

}
eureka:

  client:

    serviceUrl:

      defaultZone: http://admin:123456@localhost:8888/eureka/

server:

  port: 8001

spring:

  application:

    name: user-service

  zipkin:

    base-url: http://localhost:9411

  sleuth:

    sampler:

      percentage: 1.0

业务代码为：

@RestController

@RequestMapping("/home")

public class homeController {

    @RequestMapping(value = "/hello", method = RequestMethod.GET)

    public String hello()

    {

        return "Hello,this is the service response.";

    }

}

customer项目配置为：

<?xml version="1.0" encoding="UTF-8"?>

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <parent>

        <groupId>com.****</groupId>

        <artifactId>zipkin-p</artifactId>

        <version>1.0-SNAPSHOT</version>

    </parent>

    <groupId>com.****</groupId>

    <artifactId>customer</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>customer</name>

    <description>Demo project for Spring Boot</description>

    <dependencies>

        <dependency>

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

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

        </dependency>

        <dependency>

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

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

            <version>2.0.1.RELEASE</version>

        </dependency>

        <dependency>

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

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

        </dependency>

        <dependency>

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

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

        </dependency>

        <dependency>

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

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

            <version>2.0.1.RELEASE</version>

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

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

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>
import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

import org.springframework.cloud.openfeign.EnableFeignClients;

@EnableDiscoveryClient

@SpringBootApplication

@EnableFeignClients

public class CustomerApplication {

    public static void main(String[] args) {

        SpringApplication.run(CustomerApplication.class, args);

    }

}

业务代码为：

@Component

public class helloHystrix implements service {

    @Override

    public String hello() {

        return null;

    }

}
@FeignClient(value = "${service.request.name}", fallback = helloHystrix.class)

public interface service extends BaseService {

    @RequestMapping(method = RequestMethod.GET, value = path + "/home/hello")

    String hello();

}
@RestController

@RequestMapping("/home")

public class homeController {

    @Autowired

    private service service;

    @RequestMapping(value = "/hello", method = RequestMethod.GET)

    public String hello()

    {

        String x = service.hello();

        return "返回："+x;

    }

}
eureka:

  client:

    serviceUrl:

      defaultZone: http://admin:123456@localhost:8888/eureka/

server:

  port: 8002

spring:

  application:

    name: customer

  zipkin:

    base-url: http://localhost:9411

  sleuth:

    sampler:

      percentage: 1.0

service:

  request:

    name: USER-SERVICE

5.运行及结果

全部完成后，启动4个项目，在8888端口查看3个项目的启动情况，之后打开9411端口，查看追踪页面，报如下错误：

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Sun Sep 15 22:19:00 CST 2019

There was an unexpected error (type=Internal Server Error, status=500).

Prometheus requires that all meters with the same name have the same set of tag keys. There is already an existing meter containing tag keys [method, status, uri]. The meter you are attempting to register has keys [exception, method, status, uri].

经过查询，发现是zipkinserver项目缺失配置所致，在配置文件中添加配置即可：

management:

  metrics:

    web:

      server:

        auto-time-requests: false

重启后，查看结果，一切正常。

使用zipkin2在SpringCloud2.0环境下追踪服务调用情况、使用zipkin2在SpringCloud2.0环境下追踪服务调用情况

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