增加 skywalking 示例 - opentracing

lab-39/lab-39-opentracing/pom.xml

@@ -0,0 +1,30 @@
+<?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">
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.2.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>lab-39-opentracing</artifactId>
+
+    <dependencies>
+        <!-- SkyWalking Opentracing 集成 -->
+        <dependency>
+            <groupId>org.apache.skywalking</groupId>
+            <artifactId>apm-toolkit-opentracing</artifactId>
+            <version>6.6.0</version>
+        </dependency>
+
+        <!-- 实现对 SpringMVC 的自动化配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

lab-39/lab-39-opentracing/src/main/java/cn/iocoder/springboot/lab39/skywalkingdemo/OpentracingApplication.java

@@ -0,0 +1,13 @@
+package cn.iocoder.springboot.lab39.skywalkingdemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class OpentracingApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(OpentracingApplication.class, args);
+    }
+
+}

lab-39/lab-39-opentracing/src/main/java/cn/iocoder/springboot/lab39/skywalkingdemo/controller/DemoController.java

@@ -0,0 +1,23 @@
+package cn.iocoder.springboot.lab39.skywalkingdemo.controller;
+
+import io.opentracing.Tracer;
+import org.apache.skywalking.apm.toolkit.opentracing.SkywalkingTracer;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/demo")
+public class DemoController {
+
+    @GetMapping("/opentracing")
+    public String echo() {
+        // 创建一个 Span
+        Tracer tracer = new SkywalkingTracer();
+        tracer.buildSpan("custom_operation").withTag("mp", "芋道源码").startManual().finish();
+
+        // 返回
+        return "opentracing";
+    }
+
+}

lab-39/lab-39-opentracing/src/main/resources/application.yml

@@ -0,0 +1,2 @@
+server:
+  port: 8079

lab-39/pom.xml

@@ -25,6 +25,7 @@
         <module>lab-39-activemq</module>
         <module>lab-39-logback</module>
         <module>lab-39-trace-annotations</module>
+        <module>lab-39-opentracing</module>
     </modules>
 
 </project>