㐅韵味十足的 - 云代码空间
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<?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.forezp</groupId> <artifactId>service-zipkin</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>service-hi</name> <description>Demo project for Spring Boot</description> <parent> <groupId>com.forezp</groupId> <artifactId>sc-f-chapter9</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</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>在其配置文件application.yml指定zipkin server的地址头通过配置“spring.zipkin.base-url”指定
server.port=8988 spring.zipkin.base-url=http://localhost:9411 spring.application.name=service-hi
通过引入spring-cloud-starter-zipkin依赖和设置spring.zipkin.base-url就可以了。
对外暴露接口
package com.forezp; import brave.sampler.Sampler; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.client.RestTemplate; import java.util.logging.Level; import java.util.logging.Logger; @SpringBootApplication @RestController public class ServiceHiApplication { public static void main(String[] args) { SpringApplication.run(ServiceHiApplication.class, args); } private static final Logger LOG = Logger.getLogger(ServiceHiApplication.class.getName()); @Autowired private RestTemplate restTemplate; @Bean public RestTemplate getRestTemplate(){ return new RestTemplate(); } @RequestMapping("/hi") public String callHome(){ LOG.log(Level.INFO, "calling trace service-hi "); return restTemplate.getForObject("http://localhost:8989/miya", String.class); } @RequestMapping("/info") public String info(){ LOG.log(Level.INFO, "calling trace service-hi "); return "i'm service-hi"; } @Bean public Sampler defaultSampler() { return Sampler.ALWAYS_SAMPLE; } }
4.3 创建service-miya
创建过程痛service-hi引入相同的依赖配置下spring.zipkin.base-url。
对外暴露接口
package com.forezp; import brave.sampler.Sampler; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.client.RestTemplate; import java.util.logging.Level; import java.util.logging.Logger; @SpringBootApplication @RestController public class ServiceMiyaApplication { public static void main(String[] args) { SpringApplication.run(ServiceMiyaApplication.class, args); } private static final Logger LOG = Logger.getLogger(ServiceMiyaApplication.class.getName()); @RequestMapping("/hi") public String home(){ LOG.log(Level.INFO, "hi is being called"); return "hi i'm miya!"; } @RequestMapping("/miya") public String info(){ LOG.log(Level.INFO, "info is being called"); return restTemplate.getForObject("http://localhost:8988/info",String.class); } @Autowired private RestTemplate restTemplate; @Bean public RestTemplate getRestTemplate(){ return new RestTemplate(); } @Bean public Sampler defaultSampler() { return Sampler.ALWAYS_SAMPLE; } }
访问http://localhost:8989/miya浏览器出现
i’m service-hi
再打开http://localhost:9411/的界面点击Dependencies,可以发现服务的依赖关系