spring cloud - sleuth简单案例

一、背景

参考官网案例:
https://docs.spring.io/spring-cloud-sleuth/docs/current/reference/html/getting-started.html#getting-started

二、环境搭建

1、准备java环境
2、准备maven环境
3、准备zipkin环境 - https://www.jianshu.com/p/f36a93db085e

三、项目创建

1、创建spring cloud sleuth controller项目,并初始化

pom文件:

<?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>4.0.0</modelVersion>

    <groupId>com.toxic</groupId>
    <artifactId>spcloud.sleuth.controller</artifactId>
    <version>1.0-SNAPSHOT</version>


    <name>acme-financial-customer-microservice</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.14.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Edgware.SR4</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-sleuth-zipkin</artifactId>
        </dependency>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

application.yml文件:

server:
  port: 8080

spring:
  sleuth:
    sampler:
      percentage: 1.0

  zipkin:
    base-url: http://你的zipkin服务器地址:9411

  application:
    name: spcloud-sleuth-controller

TestController文件:

@RestController
@RequestMapping("/test")
public class TestController {
    private static final String URL = "http://localhost:8081/sleuth/biz";
    @Autowired
    RestTemplate restTemplate;

    @RequestMapping("/test1")
    public String test() {
        String forObject = restTemplate.getForObject(URL, String.class);
        return "test success";
    }

}

2、创建spring cloud sleuth biz项目
pom文件:

<?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>4.0.0</modelVersion>

    <groupId>com.toxic</groupId>
    <artifactId>spcloud.sleuth.biz</artifactId>
    <version>1.0-SNAPSHOT</version>


    <name>acme-financial-customer-microservice</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.14.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Edgware.SR4</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-sleuth-zipkin</artifactId>
        </dependency>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

application.yml文件:

server:
  port: 8081

spring:
  sleuth:
    sampler:
      percentage: 1.0

  zipkin:
    base-url: http://你的zipkin服务器地址:9411

  application:
    name: spcloud-sleuth-controller

TestController文件:

@RestController
public class TestController {
    @RequestMapping("/sleuth/biz")
    public String test() {
        System.out.println("sleuth biz test success");
        return "sleuth biz test success";
    }
}

四、项目调用测试

在三中，我们使用controller调用biz的http接口,此时预期是可以通过zipkin查到对应的请求追踪.

启动两个项目并执行请求即可
http://localhost:8080/test/test1

五、查看zipkin结果

登录zipkin地址: http://你的服务器ip:9411/zipkin/

出现以下界面即可

image.png image.png