Hystrix Dashboard仪表盘用于以GUI的形式展示消费者的执行情况,包括其处理器方法与Service方法的调用执行情况,及熔断器CircuitBreaker的状态等。当然,这些显示出的数据都是在指定时间窗内的执行情况及状态信息
一、创建消费者
(1)创建spring boot工程,命名04-consumer-dashboard-8080
(2)依赖
<?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.abc</groupId>
<artifactId>03-consumer-loadbalance-8080</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR1</spring-cloud.version>
</properties>
<dependencies>
<!--feign依赖-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<!--actuator依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!--eureka客户端依赖-->
<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-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
(3)application.yml配置
spring:
application:
name: abcmsc-consumer-depart
eureka:
client:
service-url:
defaultZone: http://localhost:8000/eureka
feign:
client:
config:
default:
connectTimeout: 5000 # 指定Feign客户端连接提供者的超时时限 取决于网络环境
readTimeout: 5000 # 指定Feign客户端从请求到获取到提供者给出的响应的超时时限 取决于业务逻辑运算时间
compression:
request:
enabled: true # 开启对请求的压缩
mime-types: text/xml, application/xml
min-request-size: 2048 # 指定启用压缩的最小文件大小
response:
enabled: true # 开启对响应的压缩
# 设置服务熔断时限
hystrix:
command:
default:
execution:
isolation:
thread:
timeoutInMilliseconds: 3000
(4)实体类
package com.abc.consumer.bean;
import lombok.Data;
@Data
public class Depart {
private Integer id;
private String name;
}
(5)service接口
package com.abc.consumer.service;
import com.abc.consumer.bean.Depart;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@Service
@FeignClient("abcmsc-provider-depart")
@RequestMapping("/provider/depart")
public interface DepartService {
@GetMapping("/get/{id}")
Depart getDepartById(@PathVariable("id") int id);
}
(6)控制层
package com.abc.consumer.controller;
import com.abc.consumer.bean.Depart;
import com.abc.consumer.service.DepartService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@RestController
@RequestMapping("/consumer/depart")
public class DepartController {
@Autowired
private DepartService service;
@GetMapping("/get/{id}")
public Depart getHandle(@PathVariable("id") int id) {
return service.getDepartById(id);
}
}
(7)启动类
package com.abc.consumer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.openfeign.EnableFeignClients;
// 指定Feign接口所在的包
@EnableFeignClients(basePackages = "com.abc.consumer.service")
@SpringBootApplication
public class ConsumerApplication {
public static void main(String[] args) {
SpringApplication.run(ConsumerApplication.class, args);
}
}
二、创建提供者
(1)创建spring boot工程,命名04-provider-8081
(2)依赖
<?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.abc</groupId>
<artifactId>01-provider-8081</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
<!--修改MySQL驱动版本-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
(3)application.yml配置
server:
port: 8081
# 设置Spring-Data-JPA
spring:
jpa:
# 指定在Spring容器启动时是否自动建表,默认为false
generate-ddl: true
# 指定是否在控制台显示其执行的SQL语句,默认false
show-sql: true
# 指定应用重启时是否重新创建更新表
hibernate:
ddl-auto: none
# 配置数据源
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql:///test?useUnicode=true&characterEncoding=utf8
username: root
password: root
application:
name: abcmsc-provider-depart # 暴露微服务名称
logging:
# 设置日志输出格式
pattern:
console: level-%level %msg%n
level:
root: info
org.hibernate: info
org.hibernate.type.descriptor.sql.BasicBinder: trace
org.hibernate.type.descriptor.sql.BasicExtractor: trace
com.abc.provider: debug
# 指定Eureka服务中心
eureka:
client:
service-url:
defaultZone: http://localhost:8000/eureka
(4)实体类
package com.abc.provider.bean;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import lombok.Data;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Data
@Entity
@JsonIgnoreProperties({"hibernateLazyInitializer", "handler", "fieldHandler"})
public class Depart {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
private String name;
}
(5)service接口
package com.abc.provider.service;
import com.abc.provider.bean.Depart;
import java.util.List;
public interface DepartService {
Depart getDepartById(int id);
}
(6)service接口类
package com.abc.provider.service;
import com.abc.provider.bean.Depart;
import com.abc.provider.repository.DepartRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.concurrent.TimeUnit;
@Service
public class DepartServiceImpl implements DepartService {
@Autowired
private DepartRepository repository;
@Override
public Depart getDepartById(int id) {
int time = id;
try {
TimeUnit.SECONDS.sleep(time);
} catch (InterruptedException e) {
e.printStackTrace();
}
if(repository.existsById(id)) {
return repository.getOne(id);
}
Depart depart = new Depart();
depart.setName("no this depart");
return depart;
}
}
(7)数据链路层
package com.abc.provider.repository;
import com.abc.provider.bean.Depart;
import org.springframework.data.jpa.repository.JpaRepository;
// 第一个泛型:当前Repository的操作对象类型
// 第二个泛型:当前Repository的操作对象的id类型
public interface DepartRepository extends JpaRepository<Depart, Integer> {
}
(8)控制层
package com.abc.provider.controller;
import com.abc.provider.bean.Depart;
import com.abc.provider.service.DepartService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@RequestMapping("/provider/depart")
@RestController
public class DepartController {
@Autowired
private DepartService service;
@GetMapping("/get/{id}")
public Depart getHandle(@PathVariable("id") int id) {
return service.getDepartById(id);
}
}
(9)启动类
package com.abc.provider;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ProviderApplication {
public static void main(String[] args) {
SpringApplication.run(ProviderApplication.class, args);
}
}
三、创建eureka
(1)创建spring boot工程,命名00-eurekaserver-8000
(2)依赖
<?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.abc</groupId>
<artifactId>00-eurekaserver-8000</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
(3)application.yml配置
server:
port: 8000
eureka:
instance:
hostname: localhost # 指定Eureka主机
client:
register-with-eureka: false # 指定当前主机是否向Eureka服务器进行注册
fetch-registry: false # 指定当前主机是否要从Eurka服务器下载服务注册列表
service-url: # 服务暴露地址
defaultZone: http://localhost:8000/eureka
# defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka
# server:
# enable-self-preservation: false # 关闭自我保护
(4)启动类
package com.abc.eureka;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer // 开启Eureka服务
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}
四、测试
(1)启动eureka
(2)启动提供者
(3)消费者
(4)访问仪表盘
A、请求超时
请求http://localhost:8080/consumer/depart/get/4
仪表盘效果
B、正常请求
请求http://localhost:8080/consumer/depart/get/2
提供端接口实现类
消费端配置因为超时设置3秒
提交请求30个
仪表盘效果
(5)其它
还有Turbine也是类似工具
使用Turbine对集群进行监控的实现步骤很简单,只需三步:
- 导入Turbine依赖
- 在配置文件中配置turbine
- 在启动类上添加@EnableTurbine注解