Spring Cloud构建微服务架构（三）断路器

2016-06-25 22:31:15 +08:00
parent c2ee5eb1ee
commit 13dcebbeb0
10 changed files with 294 additions and 0 deletions
@@ -0,0 +1,61 @@
+<?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.didispace</groupId>
+	<artifactId>compute-service</artifactId>
+	<version>1.0.0</version>
+	<packaging>jar</packaging>
+
+	<name>compute-service</name>
+	<description>Spring Cloud project</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>1.3.5.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-eureka</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>Brixton.RELEASE</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>
@@ -0,0 +1,15 @@
+package com.didispace;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+
+@EnableDiscoveryClient
+@SpringBootApplication
+public class ComputeServiceApplication {
+
+	public static void main(String[] args) {
+		new SpringApplicationBuilder(ComputeServiceApplication.class).web(true).run(args);
+	}
+
+}
@@ -0,0 +1,28 @@
+package com.didispace.web;
+
+import org.apache.log4j.Logger;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cloud.client.ServiceInstance;
+import org.springframework.cloud.client.discovery.DiscoveryClient;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class ComputeController {
+
+    private final Logger logger = Logger.getLogger(getClass());
+
+    @Autowired
+    private DiscoveryClient client;
+
+    @RequestMapping(value = "/add" ,method = RequestMethod.GET)
+    public Integer add(@RequestParam Integer a, @RequestParam Integer b) {
+        ServiceInstance instance = client.getLocalServiceInstance();
+        Integer r = a + b;
+        logger.info("/add, host:" + instance.getHost() + ", service_id:" + instance.getServiceId() + ", result:" + r);
+        return r;
+    }
+
+}
@@ -0,0 +1,6 @@
+spring.application.name=compute-service
+
+server.port=2222
+
+eureka.client.serviceUrl.defaultZone=http://localhost:1111/eureka/
+
@@ -0,0 +1,40 @@
+package com.didispace;
+
+import com.didispace.web.ComputeController;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.http.MediaType;
+import org.springframework.mock.web.MockServletContext;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = MockServletContext.class)
+@WebAppConfiguration
+public class ApplicationTests {
+
+	private MockMvc mvc;
+
+	@Before
+	public void setUp() throws Exception {
+		mvc = MockMvcBuilders.standaloneSetup(new ComputeController()).build();
+	}
+
+	@Test
+	public void getHello() throws Exception {
+		mvc.perform(MockMvcRequestBuilders.get("/hello").accept(MediaType.APPLICATION_JSON))
+				.andExpect(status().isOk())
+				.andExpect(content().string(equalTo("Hello World")));
+	}
+
+}
@@ -0,0 +1,66 @@
+<?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.didispace</groupId>
+	<artifactId>Chapter9-2-1</artifactId>
+	<version>1.0.0</version>
+	<packaging>jar</packaging>
+
+	<name>Chapter9-2-1</name>
+	<description>Spring Boot project</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>1.3.2.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<java.version>1.8</java.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-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>com.alibaba</groupId>
+			<artifactId>dubbo</artifactId>
+			<version>2.4.9</version>
+			<exclusions>
+				<exclusion>
+					<artifactId>spring</artifactId>
+					<groupId>org.springframework</groupId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+
+	</dependencies>
+	
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
@@ -0,0 +1,15 @@
+package com.didispace;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ImportResource;
+
+@SpringBootApplication
+@ImportResource({"classpath:dubbo.xml"})
+public class Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Application.class, args);
+	}
+
+}
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
+
+    <!-- 提供方应用信息，用于计算依赖关系 -->
+    <dubbo:application name="hello-world-app"  />
+
+    <!-- 使用multicast广播注册中心暴露服务地址 -->
+    <dubbo:registry address="multicast://224.5.6.7:1234" />
+
+    <!-- 用dubbo协议在20880端口暴露服务 -->
+    <dubbo:protocol name="dubbo" port="20880" />
+
+    <!-- 声明需要暴露的服务接口 -->
+    <dubbo:service interface="com.alibaba.dubbo.demo.DemoService" ref="demoService" />
+
+    <!-- 和本地bean一样实现服务 -->
+    <bean id="demoService" class="com.alibaba.dubbo.demo.provider.DemoServiceImpl" />
+
+</beans>
@@ -0,0 +1,40 @@
+package com.didispace;
+
+import com.didispace.web.HelloController;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.http.MediaType;
+import org.springframework.mock.web.MockServletContext;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = MockServletContext.class)
+@WebAppConfiguration
+public class ApplicationTests {
+
+	private MockMvc mvc;
+
+	@Before
+	public void setUp() throws Exception {
+		mvc = MockMvcBuilders.standaloneSetup(new HelloController()).build();
+	}
+
+	@Test
+	public void getHello() throws Exception {
+		mvc.perform(MockMvcRequestBuilders.get("/hello").accept(MediaType.APPLICATION_JSON))
+				.andExpect(status().isOk())
+				.andExpect(content().string(equalTo("Hello World")));
+	}
+
+}