spring boot feign client获取HTTP 404

Question

我目前正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);
    }

此接口在一个服务中自动装配

@Autowired
SearchCabMsClient restService;

将EnableFeignClients添加到SpringBootApplication

@EnableFeignClients(basePackages = {"com.gp.cabbooking.services.feign"})

pom.xml中的依赖关系，父级等

<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>

我可以看到调试spring为我的假装客户端创建代理我尝试在功能区的帮助下调用此服务，它工作正常，但当我在我的假装客户端执行方法定义。我正在获取feign.FeignException：状态404读取

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]

Answer 1

您是否定义了使用此假装客户端所达到的服务的URL？ 404是未找到的问题。

  @FeignClient(name = "SEARCHCABMS", url = "${SEARCHCABMS.service.url}", 
  configuration = ClientConfiguration.class)
  public interface SearchCabMsClient {

  }

在url中使用引用持有者有助于将其外部化并为每个环境进行配置。

如果您确实配置了URL，请双击检查其余端点。

Answer 2

你需要创建一个feign.ErrorDecoder。有关https://github.com/spring-cloud/spring-cloud-openfeign/issues/118的更多信息，请阅读此内容

您还可以在FeignClient注释定义中添加decode404=true。

Answer 3

我有同样的问题。这是一个路由问题。只需在FeignClient中的@RequestMapping路径的开头添加/。此外，路径中未定义路径变量。我建议将它们定义为@RequestParam。然后路径是正确的，除了/在开始时。

@FeignClient(name = "SEARCHCABMS",configuration = AppFeignConfiguration.class)
   public interface SearchCabMsClient {

    @RequestMapping(value = "/api/searchcab/locationcabtimedetail/search/getCabForLocationAfterTimeSlot/{fromDate}/{locationId}/{isdeleted}/{hourforbooking}", method = RequestMethod.GET)
    String  searchCabDetails(@PathVariable("fromDate") String fromDate, 
                            @PathVariable("locationId") long locationId,
                            @PathVariable("isdeleted") byte isdeleted,
                            @PathVariable("hourforbooking")int hourforbooking);
}