Feign使用MultipartFile

Feign的方法参数使用MultipartFile

Feign的方法参数使用MultipartFile，不能直接用，需要做一些配置。

依赖包：

<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>

或者是直接用 spring-cloud-starter-openfeign。

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

服务提供者

MultipartFile 使用 @RequestPart 修饰。

还需要添加一个消费者类型：consumes = MediaType.MULTIPART_FORM_DATA_VALUE

@RestController
@RequestMapping("/xx")
public class FileController {

    @PostMapping(value = "/uploadFile", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    public Response uploadFile(@RequestPart("file") MultipartFile multipartFile, @RequestParam("name") String name) {
       
        //....
    }
}

配置Feign的Encoder

@Configuration
public class FeignMultipartConfig {

    @Autowired
    private ObjectFactory<HttpMessageConverters> messageConverters;

    @Bean
    @Primary
    @Scope("prototype")
    public Encoder feignEncoder() {
        return new SpringFormEncoder(new SpringEncoder(messageConverters));
    }
}

FeignClient

FeignClient 指定 configuration = FeignMultipartConfig.class

consumes = MediaType.MULTIPART_FORM_DATA_VALUE

如下所示。

@FeignClient(name = "xx",configuration = FeignMultipartConfig.class)
@RequestMapping("/xx")
public interface FeignService {

    @PostMapping(value = "/uploadFile", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    Response uploadFile(@RequestPart("file") MultipartFile multipartFile, @RequestParam("name") String name);

}

服务消费者

MultipartFile用 @RequestPart 修饰即可。

@RestController
@Slf4j
public class FeignController {

    @Autowired
    private FeignService feignService;

    @RequestMapping(value = "/uploadFile")
    public String fileUpload(@RequestPart("file") MultipartFile file, @RequestParam("name") String name ) {

        log.info("文件上传---fileName---{}",file.getOriginalFilename());
        return feignService.uploadFile(file,name);
    }

}

参考资料：

https://www.cnblogs.com/geekdc/p/13685039.html