增加 spring-cloud-hystrix用例
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65
spring-cloud/spring-cloud-hystrix/consumer/pom.xml
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65
spring-cloud/spring-cloud-hystrix/consumer/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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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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<parent>
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<groupId>com.heibaiying.hystrix</groupId>
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<artifactId>spring-cloud-hystrx</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<artifactId>consumer</artifactId>
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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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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
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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-freemarker</artifactId>
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</dependency>
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<!--ribbon 依赖-->
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
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</dependency>
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<!--hystrix 依赖-->
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
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</dependency>
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<!--hystrix 监控依赖-->
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
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</dependency>
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<!--健康检查依赖-->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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<!--引入对公共模块的依赖-->
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<dependency>
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<groupId>com.heibaiying.hystrix</groupId>
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<artifactId>common</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<scope>compile</scope>
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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.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.heibaiying.consumer;
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import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
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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.boot.web.servlet.ServletRegistrationBean;
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import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
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import org.springframework.cloud.netflix.hystrix.EnableHystrix;
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import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
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import org.springframework.context.annotation.Bean;
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@SpringBootApplication
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@EnableDiscoveryClient
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@EnableHystrix
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@EnableHystrixDashboard
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public class ConsumerApplication {
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@Bean
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public ServletRegistrationBean getServlet() {
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HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
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ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
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registrationBean.setLoadOnStartup(1);
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registrationBean.addUrlMappings("/actuator/hystrix.stream");
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registrationBean.setName("HystrixMetricsStreamServlet");
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return registrationBean;
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}
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public static void main(String[] args) {
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SpringApplication.run(ConsumerApplication.class, args);
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}
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}
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package com.heibaiying.consumer.config;
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import org.springframework.cloud.client.loadbalancer.LoadBalanced;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.client.RestTemplate;
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/**
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* @author : heibaiying
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*/
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@Configuration
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public class RibbonConfig {
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@LoadBalanced // 配置客户端负载均衡
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@Bean
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public RestTemplate restTemplate() {
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return new RestTemplate();
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}
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}
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package com.heibaiying.consumer.controller;
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import com.heibaiying.common.api.IProductService;
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import com.heibaiying.common.bean.Product;
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import org.springframework.beans.factory.annotation.Autowired;
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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.*;
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import java.util.Date;
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import java.util.List;
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/**
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* @author : heibaiying
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*/
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@Controller
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@RequestMapping("sell")
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public class SellController {
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@Autowired
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private IProductService productService;
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@GetMapping("products")
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public String productList(Model model) {
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List<Product> products = productService.queryAllProducts();
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model.addAttribute("products", products);
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return "products";
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}
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@GetMapping("product/{id}")
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public String productDetail(@PathVariable int id, Model model) {
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Product product = productService.queryProductById(id);
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model.addAttribute("product", product);
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return "product";
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}
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@PostMapping("product")
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public String save(@RequestParam String productName) {
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long id = Math.round(Math.random() * 100);
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Product product = new Product(id, productName, false, new Date(), 88);
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productService.saveProduct(product);
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return "redirect:products";
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}
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}
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package com.heibaiying.consumer.service;
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import com.heibaiying.common.api.IProductService;
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import com.heibaiying.common.bean.Product;
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import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
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import com.netflix.ribbon.proxy.annotation.Hystrix;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.ResponseEntity;
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import org.springframework.stereotype.Service;
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import org.springframework.web.client.RestTemplate;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* @author : heibaiying
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* @description : 产品提供接口实现类
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*/
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@Service
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public class ProductService implements IProductService {
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@Autowired
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private RestTemplate restTemplate;
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@HystrixCommand(fallbackMethod = "queryProductsFail")
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public List<Product> queryAllProducts() {
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ResponseEntity<List> responseEntity = restTemplate.getForEntity("http://producer/products", List.class);
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List<Product> productList = responseEntity.getBody();
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return productList;
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}
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public Product queryProductById(int id) {
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ResponseEntity<Product> responseEntity = restTemplate.getForEntity("http://producer/product/{1}", Product.class, id);
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return responseEntity.getBody();
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}
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public void saveProduct(Product product) {
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restTemplate.postForObject("http://producer/product", product, Void.class);
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}
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public List<Product> queryProductsFail() {
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return new ArrayList<>();
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}
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}
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server:
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port: 8080
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# 指定服务命名
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spring:
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application:
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name: consumer
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# 指定注册中心地址
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eureka:
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client:
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serviceUrl:
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defaultZone: http://localhost:8010/eureka/
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<!doctype html>
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<html lang="en">
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<head>
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<title>产品详情</title>
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</head>
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<body>
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<ul>
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<li>产品名称:${product.name}</li>
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<li>产品序列号:${product.id}</li>
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<li>是否贵重品:${product.isPrecious?string('是','否')}</li>
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<li>生产日期: ${product.dateInProduced?string("yyyy-MM-dd HH:mm:ss")}</li>
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<li>产品价格:${product.price}</li>
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</ul>
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</body>
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</html>
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<!doctype html>
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<html lang="en">
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<head>
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<title>产品列表</title>
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</head>
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<body>
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<h3>产品列表:点击查看详情</h3>
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<form action="/sell/product" method="post">
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<input type="text" name="productName">
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<input type="submit" value="新增产品">
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</form>
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<ul>
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<#if (products?size>0) >
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<#list products as product>
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<li>
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<a href="/sell/product/${product.id}">${product.name}</a>
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</li>
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</#list>
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<#else>
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<h4 style="color: red">当前排队人数过多，请之后再购买！</h4>
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</#if>
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</ul>
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</body>
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</html>
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package com.heibaiying.consumer;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
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@SpringBootTest
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public class ConsumerApplicationTests {
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@Test
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public void contextLoads() {
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}
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}
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