Spring Cloud Hystrix DashBoard配置

上一个例程我们配置如何在Feign中使用Hystrix，如果不使用Feign如何使用Hystrix，需要使用注解@HystrixCommand

参考下面例程：

注册中心例程

POM.xml

  4.0.0
  com.test
  eureka-server
  war
  0.0.1-SNAPSHOT
  eureka-server Maven Webapp
  http://maven.apache.org
	
	
		org.springframework.boot
		spring-boot-starter-parent
		1.5.2.RELEASE
	

	
	  UTF-8
	

	
	
		
			
				org.springframework.cloud
				spring-cloud-dependencies
				Dalston.SR1
				pom
				import
			
		
	

	
	  
		org.springframework.boot
		spring-boot-starter-test
		test
	  
	  
	  
		org.springframework.cloud
		spring-cloud-starter-eureka-server
	  
	  
	  
		 
			org.springframework.boot 
			spring-boot-starter-security 	
		 
	

	
	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

application.properties

server.port=8110
eureka.instance.hostname=localhost
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false
eureka.client.serviceUrl.defaultZone=http://localhost:8110/eureka/

security.user.name=chenqx
security.user.password=123

启动类

package com.test.eureka_server;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@EnableEurekaServer
@SpringBootApplication
public class EureKaServer 
{
    public static void main( String[] args )
    {
        SpringApplication.run(EureKaServer.class, args);
    }
}

服务器端例程

POM.xml

  4.0.0
  com.test
  eureka-service-order
  war
  0.0.1-SNAPSHOT
  eureka-service-order Maven Webapp
  http://maven.apache.org
	
	
		org.springframework.boot
		spring-boot-starter-parent
		1.5.2.RELEASE
	
	
	
		UTF-8
	

	
		
			org.springframework.boot
			spring-boot-starter-web
		
		
		
			org.springframework.cloud
			spring-cloud-starter-eureka-server
		
		
		
			org.springframework.cloud
			spring-cloud-starter-hystrix
		
		
		
			org.springframework.boot
			spring-boot-starter-actuator
		
	
  
	
	
		
			
				org.springframework.cloud
				spring-cloud-dependencies
				Dalston.SR1
				pom
				import
			
		
	
	
	
	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

application.properties

server.port=9100
spring.application.name=service-order
eureka.client.service-url.defaultZone=http://chenqx:123@localhost:8110/eureka
eureka.client.register-with-eureka=true
eureka.client.registry-fetch-interval-seconds=10
eureka.client.fetch-registry=true

服务实现类

package com.test.eureka_service_order;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.sql.Date;

import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestHeader;
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 OrderServiceApiImpl{

	
	@RequestMapping(value = "/hello1", method = RequestMethod.GET)
	public String hello(@RequestParam("name") String name) {
		System.out.println("name="+name);
		return "hello " + name;
	}

	@RequestMapping(value = "/hello2", method = RequestMethod.GET)
    public OrderInfo hello(@RequestParam("name") String name,
    		@RequestParam("prdtName") String prdtName) {
		System.out.println("hello2 name="+name+",prdtName="+prdtName);
        try {
            name= URLDecoder.decode(name,"UTF-8");
            prdtName= URLDecoder.decode(prdtName,"UTF-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return new OrderInfo(name, prdtName,1,1,null,null);
    }
 
	@RequestMapping(value = "/hello3", method = RequestMethod.GET)
    public String hello(@RequestBody OrderInfo order) {
        if (order == null) {
            return "未知";
        }
        return order.toString();
    }

}

实体类

package com.test.eureka_service_order;

import java.io.Serializable;
import java.sql.Date;

public class OrderInfo implements Serializable {
    private static final long serialVersionUID = -7233238826463139634L;
    private Long id;
    private String name;
    private String prdtName;
    private Integer count;
    private Integer amount;
    private Date createDt = new Date(System.currentTimeMillis());
    private String userId = null;
    
 
    public OrderInfo() {
    }
 
    public OrderInfo(String name,String prdtName,Integer count,Integer amount,Date createDt,String userId) {
        this.name = name;
        this.prdtName = prdtName;
        this.count = count;
        this.amount = amount;
        this.createDt = createDt;
        this.userId = userId;
    }
 
 
    public Long getId() {
		return id;
	}

	public void setId(Long id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getPrdtName() {
		return prdtName;
	}

	public void setPrdtName(String prdtName) {
		this.prdtName = prdtName;
	}

	public Integer getCount() {
		return count;
	}

	public void setCount(Integer count) {
		this.count = count;
	}

	public Integer getAmount() {
		return amount;
	}

	public void setAmount(Integer amount) {
		this.amount = amount;
	}

	public Date getCreateDt() {
		return createDt;
	}

	public void setCreateDt(Date createDt) {
		this.createDt = createDt;
	}

	public String getUserId() {
		return userId;
	}

	public void setUserId(String userId) {
		this.userId = userId;
	}

	@Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ",prdtName=" + prdtName +
                ",count=" + count +
                ",amount=" + amount +
                '}';
    }
}

启动类

package com.test.eureka_service_order;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@EnableDiscoveryClient
@SpringBootApplication
public class OrderServer 
{
    public static void main( String[] args )
    {
    	SpringApplication.run(OrderServer.class, args);
    }
}

客户端例程

POM.xml

  4.0.0
	
	
		org.springframework.boot
		spring-boot-starter-parent
		1.5.2.RELEASE
	

  com.test
  eureka-service-web
  0.0.1-SNAPSHOT
  jar

  eureka-service-web
  http://maven.apache.org

  
    UTF-8
  

  
	  
		org.springframework.cloud
		spring-cloud-starter-eureka
	  
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.cloud
            spring-cloud-starter-feign
        
        
            org.springframework.cloud
            spring-cloud-starter-hystrix
        
        
            org.springframework.boot
            spring-boot-starter-actuator
        
        
            org.springframework.cloud
            spring-cloud-starter-hystrix-dashboard
        
  
  
	
	
		
			
				org.springframework.cloud
				spring-cloud-dependencies
				Dalston.SR1
				pom
				import
			
		
	
	
	
	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

application.properties

server.port=8887
spring.application.name=order-service-web
eureka.instance.hostname=localhost
eureka.instance.server.port=8110
eureka.client.serviceUrl.defaultZone=http://chenqx:123@${eureka.instance.hostname}:${eureka.instance.server.port}/eureka/

eureka.client.register-with-eureka=true

eureka.instance.lease-renewal-interval-in-seconds=10
eureka.client.registry-fetch-interval-seconds=10
eureka.client.fetch-registry=true
 
feign.hystrix.enabled=true

Controller类

package com.test.eureka_service_web;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.sql.Date;
import java.util.HashMap;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;

@RestController
public class OrderController {
	@Autowired
	@Qualifier(value="restTemplate")
	private RestTemplate restTemplate;
    
    @HystrixCommand(fallbackMethod="hellofallback")
    @RequestMapping(value="/hello2",method=RequestMethod.GET)
    public String hello6(String name,String prdtName)
    {
    	String url = "http://SERVICE-ORDER/hello2?name="+name+"&prdtName="+prdtName;
    	return restTemplate.getForEntity(url, String.class).getBody();
    }

    public String hellofallback(String name,String prdtName)
    {
    	return "FallBack invoke...name="+name+",prdtName="+prdtName;
    }
}

启动类

package com.test.eureka_service_web;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;

import feign.Logger;

@EnableHystrixDashboard
@EnableCircuitBreaker
@EnableFeignClients
@EnableDiscoveryClient
@SpringBootApplication
public class OrderClient 
{
	
	@Bean
	@LoadBalanced
	RestTemplate restTemplate()
	{
		return new RestTemplate();
	}
 
    public static void main(String[] args) {
        SpringApplication.run(OrderClient.class, args);
    }
}

测试效果

依次启动注册中心，服务端程序，客户端程序

在浏览器中输入地址http://localhost:8887/hello2?name=1&prdtName=Java

关闭服务端程序，再次刷新页面

添加Hystrix监控

在客户端程序的POM.xml中添加依赖

        
            org.springframework.boot
            spring-boot-starter-actuator
        

重新启动客户端程序
通过浏览器输入http://localhost:8887/hystrix.stream

添加Dashboard依赖
在客户端程序的POM.xml中添加依赖

        
            org.springframework.cloud
            spring-cloud-starter-hystrix-dashboard
        

重新启动客户端程序
通过浏览器输入http://localhost:8887/hystrix

在输入框中输入http://localhost:8887/hystrix.stream