Sample Hystrix implementation
This commit is contained in:
Christian Rädel
parent
9450837585
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.spring.cloud</groupId>
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<artifactId>spring-cloud-hystrix</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<modules>
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<module>spring-cloud-hystrix-rest-producer</module>
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<module>spring-cloud-hystrix-rest-consumer</module>
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</modules>
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<packaging>pom</packaging>
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<name>Spring Cloud Hystrix</name>
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<description>Spring Cloud Hystrix Demo</description>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-modules</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>..</relativePath>
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<build>
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<pluginManagement>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.5.1</version>
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<configuration>
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<source>1.8</source>
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<target>1.8</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<version>1.4.0.RELEASE</version>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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</project>
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>spring-cloud-hystrix-rest-consumer</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>Spring Cloud Hystrix REST Consumer</name>
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<description>Spring Cloud Hystrix Sample Implementation</description>
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<parent>
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<groupId>com.baeldung.spring.cloud</groupId>
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<artifactId>spring-cloud-hystrix</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>..</relativePath>
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</parent>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-hystrix</artifactId>
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<version>1.1.5.RELEASE</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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<version>1.4.0.RELEASE</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-thymeleaf</artifactId>
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<version>1.4.0.RELEASE</version>
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</dependency>
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</dependencies>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-parent</artifactId>
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<version>Brixton.SR4</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>
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package com.baeldung.spring.cloud.hystrix.rest.consumer;
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import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.web.client.RestTemplate;
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@Service
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public class GreetingService {
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@HystrixCommand(fallbackMethod = "defaultGreeting")
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public String getGreeting(String username) {
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return new RestTemplate().getForObject("http://localhost:9090/greeting/{username}", String.class, username);
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}
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private String defaultGreeting(String username) {
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return "Hello User!";
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}
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}
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package com.baeldung.spring.cloud.hystrix.rest.consumer;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestMapping;
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@SpringBootApplication
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@EnableCircuitBreaker
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@Controller
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public class RestConsumerApplication {
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@Autowired
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private GreetingService greetingService;
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public static void main(String[] args) {
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SpringApplication.run(RestConsumerApplication.class, args);
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}
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@RequestMapping("/get-greeting/{username}")
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public String getGreeting(Model model, @PathVariable("username") String username) {
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model.addAttribute("greeting", greetingService.getGreeting(username));
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return "greeting-view";
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}
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}
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<!DOCTYPE html>
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<html xmlns:th="http://www.thymeleaf.org">
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<head>
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<title>Greetings from Hystrix</title>
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</head>
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<body>
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<h2 th:text="${greeting}"/>
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</body>
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</html>
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>spring-cloud-hystrix-rest-producer</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>Spring Cloud Hystrix REST Producer</name>
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<description>Spring Cloud Hystrix Sample REST Producer Implementation</description>
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<parent>
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<groupId>com.baeldung.spring.cloud</groupId>
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<artifactId>spring-cloud-hystrix</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>..</relativePath>
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</parent>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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<version>1.4.0.RELEASE</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>
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package com.baeldung.spring.cloud.hystrix.rest.producer;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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public interface GreetingController {
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@RequestMapping("/greeting/{username}")
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String greeting(@PathVariable("username") String username);
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}
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package com.baeldung.spring.cloud.hystrix.rest.producer;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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@SpringBootApplication
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@RestController
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public class RestProducerApplication implements GreetingController {
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public static void main(String[] args) {
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SpringApplication.run(RestProducerApplication.class, args);
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}
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@Override
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public String greeting(@PathVariable("username") String username) {
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return String.format("Hello %s!\n", username);
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}
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}
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@ -0,0 +1 @@
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server.port=9090
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