文章目录
- Eureka
- 一、erueka 客户端配置
- 二、eureka 服务端配置
- 三、高可用配置
- Feign
- Hystrix
通过这篇文章来看看spring Cloud在代码中的具体应用，以及配置和注解；
Eureka
一、erueka 客户端配置
1、Eureka 启禁用
eureka.client.enabled=true
2、Eureka 连接超时时间
eureka.client.eureka-server-connect-timeout-seconds=5
eureka.client.eureka-connection-idle-timeout-seconds=30
3、Eureka Server等待超时时间
eureka.client.eureka-server-read-timeout-seconds=8
4、拉取Eureka注册信息
eureka.client.fetch-registry=true
5、注册自身到Eureka
eureka.client.register-with-eureka=true
6、过滤状态存活的实例
eureka.client.filter-only-up-instances=true
7、注册实例的名称
eureka.instance.appname=unknown
8、健康检查相对路径
eureka.instance.health-check-url-path=/health
9、HOME页面相对路径
eureka.instance.home-page-url-path=/
10、服务续约到期时间
eureka.instance.lease-expiration-duration-in-seconds=90
11、服务续约间隔时间
eureka.instance.lease-renewal-interval-in-seconds=30
12、注册元数据
eureka.instance.metadata-map=
13、通过配置文件找到namespace，忽略springcloud的配置
eureka.instance.namespace=
14、注册是否显示IP地址（第一个非回环地址）
eureka.instance.prefer-ip-address=false
15、注册时使用的IP地址
eureka.instance.ip-address=
16、压缩Eureka Server的数据
eureka.client.g-zip-content=true
17、心跳执行器的线程池初始值
eureka.client.heartbeat-executor-thread-pool-size=2
18、最初复制实例信息到Eureka服务器所需的时间
eureka.client.initial-instance-info-replication-interval-seconds=40
19、同步实例变更信息到Eureka服务到周期
eureka.client.instance-info-replication-interval-seconds=30
20、从Eureka服务器拉取服务信息周期
eureka.client.registry-fetch-interval-seconds=30
21、Eureka Server地址
eureka.client.serviceUrl.defaultZone=xxx,xxx,xxx
二、eureka 服务端配置
1、注册实例
eureka.instance.registry.default-open-for-traffic-count=1
eureka.instance.registry.expected-number-of-renews-per-min=1
2、服务面板
eureka.dashborad.enabled=true
eureka.dashboard.path=/
3、自我保护
eureka.server.enable-self-preservation: true
eureka.server.eviction-interval-timer-in-ms: 60000
eureka.server.renewal-percent-threshold: 0.85
4、限流
eureka.server.rate-limiter-enabled: false
eureka.server.rate-limiter-throttle-standard-clients: false
eureka.server.rate-limiter-burst-size: 10
eureka.server.rate-limiter-full-fetch-average-rate: 100
eureka.server.rate-limiter-registry-fetch-average-rate: 500
5、相应缓存
eureka.server.response-cache-auto-expiration-in-seconds: 180
eureka.server.response-cache-update-interval-ms: 30000
eureka.server.use-read-only-response-cache: true
6、安全校验
#启用安全校验
security.basic.enabled=true
#授权用户名
security.user.name=root
#授权密码
security.user.password=123456
三、高可用配置
1、节点数据同步
eureka.server.batch-replication: false
eureka.enable-replicated-request-compression: false
2、同步线程池
eureka.server.min-threads-for-status-replication: 1
eureka.server.max-threads-for-status-replication: 1
eureka.server.max-idle-thread-in-minutes-age-for-status-replication: 10
eureka.server.min-threads-for-peer-replication: 5
eureka.server.max-threads-for-peer-replication: 20
eureka.server.max-idle-thread-age-in-minutes-for-peer-replication: 15
eureka.server.number-of-replication-retries: 5
3、定时任务
eureka.server.peer-eureka-status-refresh-time-interval-ms: 3000
eureka.server.peer-eureka-nodes-update-interval-ms: 600000
eureka.server.min-available-instances-for-peer-replication: -1
4、连接
eureka.server.peer-node-total-connections-per-host: 500
eureka.server.peer-node-total-connections: 1000
eureka.server.peer-node-read-timeout-ms: 200
eureka.server.peer-node-connect-timeout-ms: 200
eureka.server.peer-node-connection-idle-timeout-seconds: 30
5、重置注册
eureka.server.registry-sync-retries: 0
eureka.server.registry-sync-retry-wait-ms: 30000
Feign
使用及配置url: SpringCloud：Feign的使用及配置_feignclient配置_Poetry-Distance的博客-CSDN博客
Hystrix
使用及配置的url: Hystrix使用及其配置详解_hystrix配置_李子捌的博客-CSDN博客
@RestController
@RequestMapping("/circuitBreaker")
public class CircuitBreakConfigController {@GetMapping@HystrixCommand(fallbackMethod = "fallback",commandProperties = {@HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "1000"),@HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "4"),@HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "50"),@HystrixProperty(name = "metrics.rollingStats.timeInMilliseconds",value = "60000"),@HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "60000")})public ResponseEntity<String> demo() {try {// 模拟接口请求TimeUnit.SECONDS.sleep(2);} catch (InterruptedException e) {e.printStackTrace();}return new ResponseEntity<>("Hello!", HttpStatus.OK);}private ResponseEntity<String> fallback() {return new ResponseEntity<>("Timeout!", HttpStatus.OK);}
}
