SpringCloud-Zuul服务网关[高并发请求下的限流处理]

<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-eureka</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-zuul</artifactId>
	</dependency>
	<dependency>
		<groupId>com.marcosbarbero.cloud</groupId>
		<artifactId>spring-cloud-zuul-ratelimit</artifactId>
		<version>1.3.4.RELEASE</version>
	</dependency>
</dependencies>

server.port=9030
# eureka注册中心的配置
eureka.client.serviceUrl.defaultZone=http://dpb:123456@eureka1:8761/eureka/,http://dpb:123456@eureka2:8761/eureka/

# 定义的两个路由规则
zuul.routes.e-book-product.path=/product/**
zuul.routes.e-book-product.serviceId=e-book-product
zuul.routes.e-book-order.path=/order/**
zuul.routes.e-book-order.serviceId=e-book-order

#全局配置限流
zuul.ratelimit.enabled=true
##60s 内请求超过 3 次，服务端就抛出异常，60s 后可以恢复正常请求
zuul.ratelimit.default-policy.limit=3
zuul.ratelimit.default-policy.refresh-interval=60
##针对 IP 进行限流，不影响其他 IP
zuul.ratelimit.default-policy.type=origin

# 局部限流：针对某个服务进行限流
##开启限流
zuul.ratelimit.enabled=true
##60s 内请求超过 3 次，服务端就抛出异常，60s 后可以恢复正常请求
zuul.ratelimit.policies.e-book-product.limit=3
zuul.ratelimit.policies.e-book-product.refresh-interval=60
##针对某个 IP 进行限流，不影响其他 IP
zuul.ratelimit.policies.e-book-product.type=origin

@RestController
public class ExceptionHandler implements ErrorController{

	@Override
	public String getErrorPath() {
		
		return "error";
	}
	
	@RequestMapping(value="/error")
	public String error(){
		return "{\"result\":\"访问太多频繁，请稍后再访问！！！\"}";
	}

}