spring zuul

API Gateway is a very important part of the microservices architecture, there are many different services provided to external use, API gateway can be a unified portal, can also be done on the gateway for protocol conversion, permission control and request statistics and limit flow and other workSpring-cloud encapsulates the open source API gateway implemented by Netflix Zuul, and we can easily launch an instance of a

Spring Cloud Version:Dalston.sr5These two days through JMeter measured the performance of spring Cloud Zuul, with two virtual machine 8 core 8G and 4 cores 8G, host is 10 core Logic 20 core, Proxy service simple return string HELLO,VM heap memory 1G enoughFirst mention the test situation, it is worth mentioning that the test is not rigorous, because the use of vi

Zuul is an edge service that provides dynamic routing, monitoring, resiliency, security, and more. Zuul corresponds to the front door of all requests from the Web site backend of the device and Netflix streaming app. Zuul can appropriately route requests to multiple Amazon Auto Scaling Groups. First create a new MAVEN project and add the following dependencies

Spring Cloud ZuultheNetflix Zuulthe encapsulation is implementednew Spring boot project demo-springcloud-api-gateway, creating startup class Zuulapplication,@ Enablezuulproxy Start the configuration of the gateway agent, which is also a combination of annotations, enabling service registration discovery and fusesProject-Critical dependency Spring-cloud-starter-

Spring Cloud Zuul Gateway exception handlingAn anomaly test:1> creates a pre-type filter and throws an exception in the filter's Run method implementation. For example, the following implementation, the DoSomething method called in the Run method throws a RuntimeException exception PackageCom.xbchen.springcloud.filter.post;ImportCom.netflix.zuul.ZuulFilter;ImportOrg.slf4j.Logger;Importorg.slf4j.LoggerFactor

Immediately following the previous essay, Spring Cloud Zuul , adding filters for authorization validation1. Adding filters PackageCom.dzpykj.filter;Importjava.io.IOException;Importjavax.servlet.http.HttpServletRequest;Importorg.springframework.stereotype.Component;ImportCom.netflix.zuul.ZuulFilter;ImportCom.netflix.zuul.context.RequestContext; @Component Public classAccessfilterextendsZuulfilter {@Override

Original Address https://my.oschina.net/u/3300636/blog/851984?nocache=1491877235421 Zuul Open First, the @enablezuulproxy annotation is the annotation that opens the Zuul. @EnableCircuitBreaker @EnableDiscoveryClient @Target ({elementtype.type}) @Retention ( Retentionpolicy.runtime) //introduction of Zuul configuration @Import ({zuulproxyconfiguration.class})

Zuul as a business gateway needs to control its internal services, the use of OAUTH2 resources server integration into the Zuul can be very good protection of Zuul internal services, need to build a service registry, certification center, authentication Center, three major sections, The authentication center is integrated with

(mediatype. Text_plain );return headers;}};}}?? Zuul Configuration ClassCreate a configuration class and create an instance Bean of the fallback class in the configuration class Package Org.lixue.zuul;??Import org.springframework.context.annotation. Bean; Import org.springframework.context.annotation. Configuration; ??@ConfigurationPublic class zuulfallbackconfiguration{??@Bean Public helloworldfallback Helloworldfallback () {return new Hellowor

Summarize the structure of Spring cloud:1, the request unifies through the API Gateway (Zuul) to access the internal service.2, the gateway received the request, from the registry (Eureka) to obtain available services3, after the balanced load by the ribbon, distributed to the backend specific examples4, micro-services through the feign communication processing business5, Hystrix is responsible for processi

MicroServices are multiple services to accomplish one thing together, then "consistent with the external" is very necessary, like we go to buy bread, it is impossible to find farmers to buy wheat, then ....Theft mapSpring Cloud introduces a Zuul approach to this featureAdd dependency Dependency > groupId >org.springframework.cloudgroupId> Artifactid>spring-cloud-starter-zuulartifactid> Dependency

1. ConceptZuul is a framework for providing dynamic routing, monitoring, resiliency, security and other edge services on cloud platforms. Zuul corresponds to the front door of all requests from the Web site backend of the device and Netflix streaming app. Another need to understand the concept is the reverse proxy and load balancing, reverse proxy: is the external network to request resources to the intranet, and the resources back to the client, is t

Spring Cloud Zuul acts as a gateway that enables request validation filtering and routing to specific services.Example:For example, the request order interface, the message includes authentication information and specific request parameters.By configuring the route to a specific interface, the interface is called through the parameters to return the specific message.Parameter passing:1. Post request, String

, avoid cors (cross-domain resource access) and permissions issues, @EnableZuulProxy The proxy uses Ribbon to locate an instance to forward to via discovery, and all requests is executed in a hystrix comman D, so failures would show up in Hystrix metrics, and once the circuit is open the proxy would not try to contact the service The agent invokes the service through the service discovery and locates the instance through the Ribbon, and all requests are executed through the Hystrix

Springcloud-zuul modules We need to use the Zuul component, so we need to introduce spring-cloud-starter-zuul because we need to zuul get a list of micro-services from the registry Eureka. It is therefore necessary to bring spring