Spring Cloud Sleuth 整合 Zipkin-蒲公英云

Spring Cloud Sleuth 是分布式服务跟踪，Zipkin可以帮助收集时间数据，解决在microservice架构下的延迟问题。

<?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.example</groupId>
    <artifactId>server-zipkin</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>server-zipkin</name>
    <description>Demo project for Spring Cloud</description>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.12.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.SR3</spring-cloud.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</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>
        <dependency>
            <groupId>io.zipkin.java</groupId>
            <artifactId>zipkin-server</artifactId>
        </dependency>
        <dependency>
            <groupId>io.zipkin.java</groupId>
            <artifactId>zipkin-autoconfigure-ui</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>io.zipkin.java</groupId>
            <artifactId>zipkin-autoconfigure-storage-mysql</artifactId>
        </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>

添加 @EnableZipkinServer

@EnableZipkinServer
@EnableEurekaClient
@SpringBootApplication
public class ServerZipkinApplication { 
    public static void main(String[] args) {
        SpringApplication.run(ServerZipkinApplication.class, args);
    }
}

zipkin server 默认将跟踪信息存储在内存中,每次重启都会丢失之前的跟踪信息,可以修改为mysql存储

application.yml

# 修改为mysql存储:
# 1.添加依赖 <dependency>
# <groupId>org.springframework.boot</groupId>
# <artifactId>spring-boot-starter-jdbc</artifactId>
# </dependency>
# <dependency>
# <groupId>mysql</groupId>
# <artifactId>mysql-connector-java</artifactId>
# </dependency>
# <dependency>
# <groupId>io.zipkin.java</groupId>
# <artifactId>zipkin-autoconfigure-storage-mysql</artifactId>
# </dependency>
#
# 2.配置 spring.datasource
# 3.配置 zipkin.storage.type=mysql
spring:
  datasource:
# zipkin-autoconfigure-storage-mysql 包下有 mysql.sql 脚本,程序启动时会自动根据sql脚本创建表结构
    schema: classpath:/mysql.sql
    url: jdbc:mysql://localhost:3306/qinwei?useUnicode=true&characterEncoding=utf-8
    username: root
    password: 123456
    initialize: true

application.properties

server.port=8090
spring.application.name=server-zipkin
eureka.client.service-url.defaultZone=http://localhost:8081/eureka-server/eureka/
management.security.enabled=false
#将zipkin server 存储切换为 mysql
zipkin.storage.type=mysql

在需要跟踪的服务中添加依赖

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

在配置文件中指定Zipkin Server的地址

application.properties

spring.zipkin.base-url=http://localhost:8090

创建 bean

@Bean
    public RestTemplate getRestTemplate() {
        return new RestTemplate();
    }
    /** * sleuth 默认使用 PercentageBasedSampler 实现的抽样策略,以请求百分比的方式配置和收集跟踪信息. * 默认是0.1(表示收集10%的跟踪信息),可以配置spring.sleuth.sampler.percentage来修改. * <p> * 创建 AlwaysSampler 的bean,会覆盖默认的 PercentageBasedSampler 策略,收集全部的跟踪信息 */
    @Bean
    public AlwaysSampler defaultSampler() {
        return new AlwaysSampler();
    }