<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>cn.how2j.springcloud</groupId>
    <artifactId>springcloud</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>product-view-service-feign</artifactId>
   
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
                 
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
 
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
      </dependency>
 
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-zipkin</artifactId>
    </dependency>      
 
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-config</artifactId>
    </dependency>        
    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>    
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-bus-amqp</artifactId>
	</dependency>          
     
    </dependencies> 
   
</project>

spring:
  cloud:
    config:
      label: master
      profile: dev
      discovery:
        enabled:  true
        serviceId:  config-server
    bus:
      enabled: true
      trace:
        enabled: true
  client:
    serviceUrl:
      defaultZone:  http://localhost:8761/eureka/
  
rabbitmq: 
  host: localhost
  port: 5672
  username: guest
  password: guest      

spring:
  application:
    name:  product-view-service-feign
  thymeleaf:
    cache: false
    prefix: classpath:/templates/
    suffix: .html
    encoding: UTF-8
    content-type: text/html
    mode: HTML5        
  zipkin:
    base-url: http://localhost:9411    
    
management:
  endpoints:
    web:
      exposure:
        include: "*"
      cors:
        allowed-origins: "*"
        allowed-methods: "*"        

package cn.how2j.springcloud;

import java.util.Scanner;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.annotation.Bean;

import brave.sampler.Sampler;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.thread.ThreadUtil;
import cn.hutool.core.util.NetUtil;
import cn.hutool.core.util.NumberUtil;

@SpringBootApplication
@EnableEurekaClient
@EnableDiscoveryClient
@EnableFeignClients
public class ProductViewServiceFeignApplication {

	public static void main(String[] args) {
		//判断 rabiitMQ 是否启动
    	int rabbitMQPort = 5672;
    	if(NetUtil.isUsableLocalPort(rabbitMQPort)) {
    		System.err.printf("未在端口%d 发现 rabbitMQ服务，请检查rabbitMQ 是否启动", rabbitMQPort );
    		System.exit(1);
    	}		
    	int port = 0;
    	int defaultPort = 8012;
    	Future<Integer> future = ThreadUtil.execAsync(() ->{
	        	int p = 0;
	        	System.out.println("请于5秒钟内输入端口号, 推荐  8012 、 8013  或者  8014，超过5秒将默认使用"+defaultPort);
	        	Scanner scanner = new Scanner(System.in);
	            while(true) {
	                String strPort = scanner.nextLine(); 
	                if(!NumberUtil.isInteger(strPort)) {
	                	System.err.println("只能是数字");
	                	continue;
	                }
	                else {
	                	p = Convert.toInt(strPort);
	                	scanner.close();
	                	break;
	                }
	            }
	            return p;
		});
		try{
		    port=future.get(5,TimeUnit.SECONDS);
		}
		catch (InterruptedException | ExecutionException | TimeoutException e){
		    port = defaultPort;
		}
    	if(!NetUtil.isUsableLocalPort(port)) {
    		System.err.printf("端口%d被占用了，无法启动%n", port );
    		System.exit(1);
    	}
        new SpringApplicationBuilder(ProductViewServiceFeignApplication.class).properties("server.port=" + port).run(args);

	}
	@Bean
	public Sampler defaultSampler() {
		return Sampler.ALWAYS_SAMPLE;
	}
	
}

package cn.how2j.springcloud.util;

import java.util.HashMap;

import cn.hutool.http.HttpUtil;

public class FreshConfigUtil {

	public static void main(String[] args) {
		HashMap<String,String> headers =new HashMap<>();
		headers.put("Content-Type", "application/json; charset=utf-8"); 
		System.out.println("因为要去git获取，还要刷新config-server, 会比较卡，所以一般会要好几秒才能完成，请耐心等待");

		String result = HttpUtil.createPost("http://localhost:8012/actuator/bus-refresh").addHeaders(headers).execute().body();
		System.out.println("result:"+result);
		System.out.println("refresh 完成");
	}
}