增加 spring cloud 用例

spring-cloud/spring-cloud-sleuth-zipkin/eureka/src/main/java/com/heibaiying/eureka/EurekaApplication.java

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+package com.heibaiying.eureka;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
+
+@SpringBootApplication
+@EnableEurekaServer
+public class EurekaApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(EurekaApplication.class, args);
+    }
+
+}
+

spring-cloud/spring-cloud-sleuth-zipkin/eureka/src/main/resources/application.yml

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+server:
+  port: 8010
+eureka:
+  instance:
+    hostname: localhost
+  client:
+    # 设置为false,代表不向注册中心注册自己
+    register-with-eureka: false
+    # 注册中心主要用于维护服务，并不需要检索服务，所以设置为false
+    fetch-registry: false
+    serviceUrl:
+          defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

spring-cloud/spring-cloud-sleuth-zipkin/eureka/src/test/java/com/heibaiying/eureka/EurekaApplicationTests.java

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+package com.heibaiying.eureka;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class EurekaApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}
+