增加 spring cloud 用例

This commit is contained in:
罗祥
2019-01-17 17:58:18 +08:00
parent d9a7aef780
commit bd7cc53b50
46 changed files with 1326 additions and 0 deletions

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<?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>
<parent>
<groupId>com.heibaiying.sleuth.zipkin</groupId>
<artifactId>spring-cloud-sleuth-zipkin</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>consumer</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<!-- feign 依赖-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<!--引入对公共模块的依赖-->
<dependency>
<groupId>com.heibaiying.sleuth.zipkin</groupId>
<artifactId>common</artifactId>
<version>0.0.1-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
<!--zipkin-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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package com.heibaiying.consumer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class ConsumerApplication {
public static void main(String[] args) {
SpringApplication.run(ConsumerApplication.class, args);
}
}

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package com.heibaiying.consumer.config;
import feign.Retryer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import static java.util.concurrent.TimeUnit.SECONDS;
/**
* @author : heibaiying
* @description : feign 配置
*/
@Configuration
public class FeignConfig {
@Bean
public Retryer retryer(){
//重试间隔为 100ms最大重试时间为 1s, 重试次数为 5 次
return new Retryer.Default(100,SECONDS.toMillis(1),5);
}
}

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package com.heibaiying.consumer.controller;
import com.heibaiying.common.bean.Product;
import com.heibaiying.consumer.feign.CProductFeign;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;
/**
* @author : heibaiying
*/
@Controller
@RequestMapping("sell")
public class SellController {
@Autowired
private CProductFeign cproductFeign;
@GetMapping("products")
public String productList(Model model) {
List<Product> products = cproductFeign.productList();
model.addAttribute("products", products);
return "products";
}
@GetMapping("product/{id}")
public String productDetail(@PathVariable int id, Model model) {
Product product = cproductFeign.productDetail(id);
model.addAttribute("product", product);
return "product";
}
@PostMapping("product")
public String save(@RequestParam String productName) {
long id = Math.round(Math.random() * 100);
Product product = new Product(id, productName, false, new Date(), 88);
cproductFeign.save(product);
return "redirect:products";
}
}

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package com.heibaiying.consumer.feign;
import com.heibaiying.common.feign.ProductFeign;
import com.heibaiying.consumer.config.FeignConfig;
import com.heibaiying.consumer.feign.impl.CProductFeignImpl;
import org.springframework.cloud.openfeign.FeignClient;
/**
* @author : heibaiying
* @description : 声明式接口调用
*/
@FeignClient(value = "producer",configuration = FeignConfig.class,fallback = CProductFeignImpl.class)
public interface CProductFeign extends ProductFeign {
}

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package com.heibaiying.consumer.feign.impl;
import com.heibaiying.common.bean.Product;
import com.heibaiying.consumer.feign.CProductFeign;
import org.springframework.stereotype.Component;
import java.util.ArrayList;
import java.util.List;
/**
* @author : heibaiying
* @description : 定义发生错误时候的熔断处理。除了继承自CProductFeign,还需要用@Component声明为spring的组件
*/
@Component
public class CProductFeignImpl implements CProductFeign {
@Override
public List<Product> productList() {
return new ArrayList<>();
}
@Override
public Product productDetail(int id) {
return null;
}
@Override
public void save(Product product) {
}
}

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server:
port: 8080
# 指定服务命名
spring:
application:
name: consumer
# 指定zipkin地址 默认就是http://localhost:9411/
zipkin:
base-url: http://localhost:9411/
# 指定注册中心地址
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8010/eureka/
feign:
hystrix:
# 如果为true则OpenFign客户端将使用Hystrix断路器进行封装 默认为false
enabled: true

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<!doctype html>
<html lang="en">
<head>
<title>产品详情</title>
</head>
<body>
<ul>
<li>产品名称:${product.name}</li>
<li>产品序列号:${product.id}</li>
<li>是否贵重品:${product.isPrecious?string('是','否')}</li>
<li>生产日期: ${product.dateInProduced?string("yyyy-MM-dd HH:mm:ss")}</li>
<li>产品价格:${product.price}</li>
</ul>
</body>
</html>

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<!doctype html>
<html lang="en">
<head>
<title>产品列表</title>
</head>
<body>
<h3>产品列表:点击查看详情</h3>
<form action="/sell/product" method="post">
<input type="text" name="productName">
<input type="submit" value="新增产品">
</form>
<ul>
<#if (products?size>0) >
<#list products as product>
<li>
<a href="/consumer/sell/product/${product.id}">${product.name}</a>
</li>
</#list>
<#else>
<h4 style="color: red">当前排队人数过多,请之后再购买!</h4>
</#if>
</ul>
</body>
</html>

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package com.heibaiying.consumer;
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 ConsumerApplicationTests {
@Test
public void contextLoads() {
}
}