第二十章 Spring cloud+turbine+context-path（项目路径配置）监测集群各项指标

Spring cloud+turbine+context-path（项目路径配置）监测集群各项指标

项目结构如下：

EurekaApplication类

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.turbine.EnableTurbine;

@EnableTurbine
@SpringBootApplication  //开启启动程序入口类
public class EurekaApplication {
  public static void main(String[] args) {
    SpringApplication.run(EurekaApplication.class, args);
  }
}

application.yml配置

server:
  port: 8031
spring:
  application:
    name: spring-cloud-hystrix-turbine2
eureka:
  client:
    serviceUrl:
      defaultZone: http://user:[email protected]:8761/eureka
  instance:
    prefer-ip-address: true
turbine:
  aggregator:
    clusterConfig: SPRING-CLOUD-ORDER-RIBBON-HYSTRIX2
  appConfig: spring-cloud-order-ribbon-hystrix2
  instanceUrlSuffix: 
    SPRING-CLOUD-ORDER-RIBBON-HYSTRIX2: /ribbon/hystrix.stream  #若不加此配置，到时候访问http:localhost:port/ribbon/hystrix.stream不了，报404

#此日志配置的是打印访问的URL
logging: 
  level:
    root: INFO
    com.netflix.turbine.monitor: DEBUG

pom.xml配置

<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>

	<groupId>com.example.demo</groupId>
	<artifactId>spring-cloud-hystrix-turbine2</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<name>spring-cloud-hystrix-turbine2</name>
	<description>spring-cloud-hystrix-turbine2</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.1.RELEASE</version>
	</parent>

	<properties>
		<!-- 文件拷贝时的编码 -->
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<!-- 编译时的编码 -->
		<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
		<!-- jdk版本 -->
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-turbine</artifactId>
		</dependency>
		<!-- 用于热部署 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>
	<dependencyManagement>
		<dependencies>
			<!-- 版本依赖管理，故之后添加依赖无需指定version -->
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>Camden.SR2</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<build>
		<plugins>
			<!-- 用以为integration-test提供支持。 -->
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

第二十章 Spring cloud+turbine+context-path（项目路径配置）监测集群各项指标

OrderController类

package com.example.demo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import com.example.demo.entity.User;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;

@RestController
public class OrderController {
	
	  @Autowired
	  private RestTemplate restTemplate;
	  

	  @GetMapping("/order/{id}")
	  @HystrixCommand(fallbackMethod="findByIdFallback")//熔断机制
	  public User findById(@PathVariable Long id) {
	    // http://localhost:7900/user/
	    // VIP virtual IP(http://localhost:7900/user/表示虚拟ip)
	    // HAProxy Heartbeat
	    return this.restTemplate.getForObject("http://spring-cloud-user/user/" + id, User.class);//直接写服务提供者的spring.application.name,这样方便于动态IP
	  }
	  
	  /**
	   * 若是出现调用findById方法时出现错误或超时时，则调用此方法
	   * @param id
	   * @return
	   */
	  public User findByIdFallback(Long id){
		  User user = new User();
		  user.setId(0L);
		  return user;
	  }
}

User类

package com.example.demo.entity;

import java.math.BigDecimal;

public class User {
  private Long id;

  private String username;

  private String name;

  private Short age;

  private BigDecimal balance;

  public Long getId() {
    return this.id;
  }

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

  public String getUsername() {
    return this.username;
  }

  public void setUsername(String username) {
    this.username = username;
  }

  public String getName() {
    return this.name;
  }

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

  public Short getAge() {
    return this.age;
  }

  public void setAge(Short age) {
    this.age = age;
  }

  public BigDecimal getBalance() {
    return this.balance;
  }

  public void setBalance(BigDecimal balance) {
    this.balance = balance;
  }

}

SpringCloudOrderApplication类

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;

@SpringBootApplication
@EnableEurekaClient
@EnableCircuitBreaker //熔断机制注解
public class SpringCloudOrderApplication {

  @Bean	//必须new 一个RestTemplate并放入spring容器当中,否则启动时报错
  @LoadBalanced //此注解整合了Ribbon，使客户端负载均衡
  public RestTemplate restTemplate() {
    return new RestTemplate();
  }

  public static void main(String[] args) {
    SpringApplication.run(SpringCloudOrderApplication.class, args);
  }
}

application.yml配置

spring:
  application:
    name: spring-cloud-order-ribbon-hystrix2  #微服务的名称
server:
  port: 7902  #微服务端口号
  context-path: /ribbon  #Spring boot默认是/ ，这样直接通过http://ip:port/就可以访问到index页面，如果要修改为http://ip:port/path/ 访问的话，那么需要在Application.yml文件中加入server.context-path = /你的path,比如：spring-boot,那么访问地址就是http://ip:port/spring-boot 路径。  
eureka:
  client:
    healthcheck: 
      enabled: true   # 开启健康检查
    serviceUrl: 
      defaultZone: http://user:[email protected]:8761/eureka   #服务eureka的URL地址
  instance:
    prefer-ip-address: true
    home-page-url-path: /ribbon  #因为默认是/

#超时所设定的时间
hystrix: 
   command: 
     default:   
        execution: 
          isolation: 
            thread: 
              timeoutInMilliseconds: 5000

pom.xml配置

<?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>

	<groupId>com.example.demo</groupId>
	<artifactId>spring-cloud-order-ribbon-hystrix2</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<name>spring-cloud-order-ribbon-hystrix2</name>
	<description>spring-cloud-order-ribbon-hystrix2</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.1.RELEASE</version>
	</parent>

	<properties>
		<!-- 文件拷贝时的编码 -->  
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		  <!-- 编译时的编码 -->  
        <maven.compiler.encoding>UTF-8</maven.compiler.encoding>  
        <!-- jdk版本 -->  
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<!-- 注册中心 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka</artifactId>
		</dependency>
		<!-- 这个库让我们可以访问应用的很多信息,包括:/env、/info、/metrics、/health等 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<!-- 添加hystrix依赖 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-hystrix</artifactId>
		</dependency>		
		<!-- 用于热部署 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>
	<dependencyManagement>
		<dependencies>
		<!-- 版本依赖管理，故之后添加依赖无需指定version -->
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>Camden.SR2</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<build>
		<plugins>
		<!-- 用以为integration-test提供支持。 -->
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

项目启动顺序：

spring-cloud-eureka-->spring-cloud-user-->spring-cloud-order-ribbon-hystrix2-->spring-cloud-hystrix-turbine2-->spring-cloud-hystrixDashboard

第二十章 Spring cloud+turbine+context-path（项目路径配置）监测集群各项指标

第二十章 Spring cloud+turbine+context-path（项目路径配置）监测集群各项指标

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第二十章 Spring cloud+turbine+context-path（项目路径配置） 监测集群各项指标

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第二十章 Spring cloud+turbine+context-path（项目路径配置）监测集群各项指标