我目前只是在检查如何在我的一个项目中使用 Feign 作为声明式 REST 客户端。
以下是Feign Client
@FeignClient(name = "SEARCHCABMS",configuration = AppFeignConfiguration.class)
public interface SearchCabMsClient {
@RequestMapping(value = "api/searchcab/locationcabtimedetail/search/getCabForLocationAfterTimeSlot", method = RequestMethod.GET)
String searchCabDetails(@PathVariable("fromDate") String fromDate,
@PathVariable("locationId") long locationId,
@PathVariable("isdeleted") byte isdeleted,
@PathVariable("hourforbooking")int hourforbooking);
}
该接口在一项服务中自动装配
@Autowired
SearchCabMsClient restService;
将 EnableFeignClients 添加到 SpringBootApplication
@EnableFeignClients(basePackages = {"com.gp.cabbooking.services.feign"})
pom.xml 中的依赖项、父项等
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
</parent>
依赖
<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-ribbon</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
</dependency>
我可以看到在调试 spring 为我的假客户端创建代理时我尝试在功能区的帮助下调用此服务并且它工作正常但是当我在我的假客户端中执行方法定义时。我收到 feign.FeignException: status 404 reading
feign.FeignException: status 404 reading SearchCabMsClient#searchCabDetails(String,long,byte,int)
at feign.FeignException.errorStatus(FeignException.java:62) ~[feign-core-8.16.2.jar:8.16.2]
at feign.codec.ErrorDecoder$Default.decode(ErrorDecoder.java:91) ~[feign-core-8.16.2.jar:8.16.2]
at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:134) ~[feign-core-8.16.2.jar:8.16.2]
at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:76) ~[feign-core-8.16.2.jar:8.16.2]
at feign.hystrix.HystrixInvocationHandler$1.run(HystrixInvocationHandler.java:97) ~[feign-hystrix-8.16.2.jar:8.16.2]
at com.netflix.hystrix.HystrixCommand$1.call(HystrixCommand.java:293) ~[hystrix-core-1.5.3.jar:1.5.3]
at com.netflix.hystrix.HystrixCommand$1.call(HystrixCommand.java:289) ~[hystrix-core-1.5.3.jar:1.5.3]
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:46) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:50) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:50) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.1.5.jar:1.1.5]
at rx.Observable.unsafeSubscribe(Observable.java:8460) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[rxjava-1.1.5.jar:1.1.5]
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:50) ~[rxjava-1.1.5.jar:1.1.5]
原文由 Ganesh Pol 发布,翻译遵循 CC BY-SA 4.0 许可协议
您需要创建一个
feign.ErrorDecoder
。请阅读本文以获取更多信息 https://github.com/spring-cloud/spring-cloud-openfeign/issues/118您还可以在 FeignClient 注释定义中添加
decode404=true
。