如何通过Spring Cloud Feign发送POST请求 [英] How to send POST request by Spring cloud Feign

问题描述

这是我的Feign界面

It's my Feign interface

@FeignClient(
        name="mpi",
        url="${mpi.url}",
        configuration = FeignSimpleEncoderConfig.class
)
public interface MpiClient {

    @RequestMapping(method = RequestMethod.POST)
    public ResponseEntity<String> getPAReq(@QueryMap Map<String, String> queryMap
    );
}

和我的自定义配置

public class FeignSimpleEncoderConfig {
    public static final int FIVE_SECONDS = 5000;

    @Bean
    public Logger.Level feignLogger() {
        return Logger.Level.FULL;
    }

    @Bean
    public Request.Options options() {
        return new Request.Options(FIVE_SECONDS, FIVE_SECONDS);
    }

    @Bean 
    @Scope("prototype")
    public Feign.Builder feignBuilder() {
        return Feign.builder()
                .encoder(new FormEncoder());
    }
}

如果我发送这样的请求，我会看到我的请求发送的是Content-Type:application/json; charset = UTF-8. 但是，如果我设置内容类型

If I send request like this I see that my request send Content-Type: application/json;charset=UTF-8. But if I set content type

consumes = "application/x-www-form-urlencoded"

我收到此错误消息

feign.codec.EncodeException: Could not write request: no suitable HttpMessageConverter found for request type [java.util.HashMap] and content type [application/x-www-form-urlencoded]
    at org.springframework.cloud.netflix.feign.support.SpringEncoder.encode(SpringEncoder.java:108) ~[spring-cloud-netflix-core-1.1.7.RELEASE.jar:1.1.7.RELEASE]

如何发送POST请求，我想我应该使用Encoder做更多的事情. 感谢您的帮助.

How to send POST request, I think I should make something more with Encoder. Thanks for your help.

推荐答案

首先，您应该像这样更改Feign接口:

First of all you should change your Feign interface like this:

@FeignClient (
    configuration = FeignSimpleEncoderConfig.class
)
public interface MpiClient {
   @RequestMapping(method = RequestMethod.POST)
   ResponseEntity<String> getPAReq(Map<String, ?> queryMap);
}

然后，您应在伪装配置期间设置编码器:

Then you should set the encoder during feign configuration:

public class FeignSimpleEncoderConfig {
    @Bean
    public Encoder encoder() {
        return new FormEncoder();
    }
}

这篇关于如何通过Spring Cloud Feign发送POST请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！