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This article mainly introduces how springcloud uses Feign background internal transmission MultipartFile, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand.

How to use Feign background internal transfer MultipartFile to modify FeignClient interface import feign.codec.Encoder;import feign.form.spring.SpringFormEncoder;import org.springframework.cloud.openfeign.FeignClient;import org.springframework.context.annotation.Bean;import org.springframework.http.MediaType;import org.springframework.web.bind.annotation.DeleteMapping;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RequestPart;import org.springframework.web.multipart.MultipartFile first / * @ author linli * @ date 20-06-27 * / @ FeignClient (value = "upload", fallbackFactory = UploadFallbackFactory.class, configuration = UploadClient.MultipartSupportConfig.class) public interface UploadClient {@ PostMapping (path = "/ upload-text", consumes = MediaType.MULTIPART_FORM_DATA_VALUE) String uploadText (@ RequestPart (name = "file") MultipartFile file); / * * reference configuration class MultipartSupportConfig. And instantiate * / class MultipartSupportConfig {@ Bean public Encoder feignFormEncoder () {return new SpringFormEncoder ();}

If SpringFormEncoder introduces an error report, add the following dependencies

Io.github.openfeign.form feign-form 3.3.0 io.github.openfeign.form feign-form-spring 3.3.0 internal call private String uploadFile (String str) {FileOutputStream fos = null; FileInputStream fis = null; MultipartFile multipartFile = null; byte [] bt = str.getBytes (); File file = null Try {file = File.createTempFile ("file" + UUID.randomUUID (), ".txt"); fos = new FileOutputStream (file); fos.write (bt, 0, bt.length); fis = new FileInputStream (file); multipartFile = new MockMultipartFile ("file", file.getName (), MediaType.TEXT_PLAIN_VALUE, fis) } catch (FileNotFoundException e) {e.printStackTrace ();} catch (IOException e) {e.printStackTrace ();} finally {if (fis! = null) {try {fis.close ();} catch (IOException e) {e.printStackTrace () }} if (fos! = null) {try {fos.close ();} catch (IOException e) {e.printStackTrace ();} return uploadClient.uploadText (multipartFile);} attention

Feign delivers MultipartFile files across services

The file is uploaded by calling the service to prevent each module that needs to upload the file from writing the upload service again, resulting in code redundancy.

This paper mainly contains the file upload module through feign.

So that technicians have places to look up and rules to follow when they encounter problems in the development process.

Cross-service delivery of MultipartFile files through feign

Add dependency

Io.github.openfeign.form feign-form 3.0.3 io.github.openfeign.form feign-form-spring 3.0.3

Add Profil

Package com.ruiyi.twowayreferral.configurer;import feign.codec.Encoder;import feign.form.spring.SpringFormEncoder;import org.springframework.beans.factory.ObjectFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.autoconfigure.http.HttpMessageConverters;import org.springframework.cloud.openfeign.support.SpringEncoder;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;@Configurationpublic class MultipartSupportConfig {@ Autowired private ObjectFactory messageConverters @ Bean public Encoder feignFormEncoder () {return new SpringFormEncoder (new SpringEncoder (messageConverters));}}

Code example

@ FeignClient (value = "controller-center") public interface CallFrignService {/ * @ Create File upload wanggx_ruiyi 2019.11.15 * @ param uploadPath File upload address * @ param file uploaded File * @ return * / @ PostMapping (value = "/ api/v1/common/file/fileUpload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE) String fileUpload (@ RequestParam (value = "uploadPath", required = true) String uploadPath @ RequestPart (value = "file", required = true) MultipartFile file) } Thank you for reading this article carefully. I hope the article "how springcloud uses Feign to transmit MultipartFile in the background" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support and follow the industry information channel. More related knowledge is waiting for you to learn!

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