SPRINGCLOUD15---Zuul-fallback

 package   Com.itmuch.cloud;  import   org.springframework.boot.SpringApplication;  import   org.springframework.boot.autoconfigure.SpringBootApplication;  import   org.springframework.cloud.netflix.zuul.enablezuulproxy;@ Springbootapplication@enablezuulproxy  public  class   zuulapplication { public  static  void   main (string[] args) {Springapplication.run (zuulapplication. ) class   

 PackageCom.itmuch.cloud.fallback;ImportJava.io.ByteArrayInputStream;Importjava.io.IOException;ImportJava.io.InputStream;ImportOrg.springframework.cloud.netflix.zuul.filters.route.ZuulFallbackProvider;Importorg.springframework.http.HttpHeaders;ImportOrg.springframework.http.HttpStatus;ImportOrg.springframework.http.MediaType;ImportOrg.springframework.http.client.ClientHttpResponse;Importorg.springframework.stereotype.Component;//Access User micro-service HTTP via Zuul (8040 port)://LOCALHOST:8040/MICROSERVICE-PROVIDER-USER/SIMPLE/1//If the user Micro service is stopped at this time, it will return "Fallbackmicroservice-provider-user" (using the Hysitrcs circuit breaker function)//Feign's fallback is for a class, Zuul's fallback is for a microservices. @Component Public classMyfallbackproviderImplementsZuulfallbackprovider {@Override PublicString Getroute () {return"Microservice-provider-user"; } @Override Publicclienthttpresponse Fallbackresponse () {return NewClienthttpresponse () {@Override PublicHttpstatus Getstatuscode ()throwsIOException {returnhttpstatus.bad_request; } @Override Public intGetrawstatuscode ()throwsIOException {returnHttpStatus.BAD_REQUEST.value (); } @Override PublicString Getstatustext ()throwsIOException {returnHttpStatus.BAD_REQUEST.getReasonPhrase (); } @Override Public voidclose () {} @Override PublicInputStream GetBody ()throwsIOException {return NewBytearrayinputstream ("fallback" + Myfallbackprovider. This. Getroute ()). GetBytes ()); } @Override Publichttpheaders getheaders () {httpheaders headers=Newhttpheaders ();        Headers.setcontenttype (Mediatype.application_json); returnheaders;  }    }; }}

Spring:  application:    name:microservice-gateway-zuulserver:  8040Eureka:  Client:    service-URL:      defaultzone:http://user:[email protected]:8761/ Eureka  instance:    prefertrueHystrix.command. default. execution.isolation.thread.timeoutinmilliseconds:60000Ribbon:      60000

<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> <parent> <groupId>com.itmuch.cloud</groupId> <artifactid>mi Croservice-spring-cloud</artifactid> <version>0.0.1-SNAPSHOT</version> </parent> < Artifactid>microservice-gateway-zuul-fallback</artifactid> <packaging>jar</packaging> < Properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties&gt    ;            <dependencies> <dependency> <groupId>org.springframework.cloud</groupId>            <artifactId>spring-cloud-starter-zuul</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactid>spring-cloud-starter-eureka </artifactId> </dEpendency> </dependencies></project> 

SPRINGCLOUD15---Zuul-fallback