服务提供者

@SpringBootApplicationpublic class FeignUploadFirstApplication { @RestController public class UploadController { @RequestMapping(value = "/uploadFile",method = RequestMethod.POST, consumes = MediaType.MULTIPART_FORM_DATA_VALUE) public String handleFileUpload(@RequestPart(value = "file") MultipartFile file) { return file.getOriginalFilename(); } } public static void main(String[] args) { SpringApplication.run(FeignUploadFirstApplication.class, args); }}服务消费者

1.feign相关的依赖

<dependency> <groupId>io.github.openfeign.form</groupId> <artifactId>feign-form</artifactId> <version>3.0.3</version> </dependency> <dependency> <groupId>io.github.openfeign.form</groupId> <artifactId>feign-form-spring</artifactId> <version>3.0.3</version> </dependency>

2.feign配置类

@Configurationpublic class FeignMultipartSupportConfig { @Bean public Encoder feignFormEncoder() { return new SpringFormEncoder(); }}

3.feign调用接口 注解中加入配置类

@FeignClient(value = "xxx", configuration = FeignMultipartSupportConfig.class)public interface IUploadService { /** * 文件上传 * @param file 文件 * @return */ @RequestMapping(value = "upload/uppic", method = RequestMethod.POST, consumes = MediaType.MULTIPART_FORM_DATA_VALUE) ResultModel<String> uppic(@RequestPart(value = "file")MultipartFile file, @RequestParam Map<String,Object> map);}

4.上传接口

@RestControllerpublic class UploadController { @Autowired IUploadService uploadService; @RequestMapping(value = "/uploadFile",method = RequestMethod.POST, consumes = MediaType.MULTIPART_FORM_DATA_VALUE) public String handleFileUpload(@RequestPart(value = "file") MultipartFile file) { return uploadService.uppic(file); }}文件上传 File 转 Multi

FileInputStream fileInputStream = new FileInputStream(file);MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), ContentType.TEXT_PLAIN.toString(), fileInputStream);注意：File 转 MultipartFile 中的第一个参数必须与服务提供者的接口参数一致，即@RequestPart中的value