springCloud 传文件

依赖

<dependency>
    <groupId>io.github.openfeign.form</groupId>
    <artifactId>feign-form</artifactId>
    <version>3.8.0</version>
</dependency>
<dependency>
    <groupId>io.github.openfeign.form</groupId>
    <artifactId>feign-form-spring</artifactId>
    <version>3.8.0</version>
</dependency>

服务消费者Service接口

@FeignClient(value = "xqwl-street-provider", configuration = ImsRhinfoZyxqCarService.MultipartSupportConfig.class)
@Service
public interface ImsRhinfoZyxqCarService {
    @PostMapping(value = "/ImsRhinfoZyxqSanitationController/upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    R SanitationUpload(@RequestPart(value = "file")MultipartFile file);

    @Configuration
    class MultipartSupportConfig {
        @Bean
        public Encoder feignFormEncoder(ObjectFactory<HttpMessageConverters> messageConverters) {
            return new FeignSpringFormEncoder(new SpringEncoder(messageConverters));
        }
    }
}

传文件配置

import feign.RequestTemplate;
import feign.codec.EncodeException;
import feign.codec.Encoder;
import feign.form.ContentType;
import feign.form.FormEncoder;
import feign.form.MultipartFormContentProcessor;
import feign.form.spring.SpringManyMultipartFilesWriter;
import feign.form.spring.SpringSingleMultipartFileWriter;
import org.springframework.web.multipart.MultipartFile;

import java.lang.reflect.Type;
import java.util.Collections;
import java.util.Map;
public class FeignSpringFormEncoder extends FormEncoder {
    public FeignSpringFormEncoder() {
        this(new Default());
    }
    public FeignSpringFormEncoder(Encoder delegate) {
        super(delegate);
        MultipartFormContentProcessor processor = (MultipartFormContentProcessor)this.getContentProcessor(ContentType.MULTIPART);
        processor.addFirstWriter(new SpringSingleMultipartFileWriter());
        processor.addFirstWriter(new SpringManyMultipartFilesWriter());
    }
    public void encode(Object object, Type bodyType, RequestTemplate template) throws EncodeException {
        if (bodyType.equals(MultipartFile.class)) {
            MultipartFile file = (MultipartFile) object;
            Map<String, Object> data = Collections.singletonMap(file.getName(), object);
            super.encode(data, MAP_STRING_WILDCARD, template);
            return;
        } else if (bodyType.equals(MultipartFile[].class)) {
            MultipartFile[] file = (MultipartFile[]) object;
            if(file != null) {
                Map<String, Object> data = Collections.singletonMap(file.length==0?"":file[0].getName(), object);
                super.encode(data, MAP_STRING_WILDCARD, template);
                return;
            }
        }
        super.encode(object, bodyType, template);
    }
}
服务提供者接口
@PostMapping(value="upload",produces = MediaType.APPLICATION_JSON_UTF8_VALUE,
        consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public R upload(MultipartFile file){
  return   sanitationService.importExcel(file);
}