这篇文章主要介绍了springcloud怎么使用Feign后台内部传递MultipartFile，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。
如何使用Feign后台内部传递MultipartFile
先修改Feign Client接口
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; @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); class MultipartSupportConfig { @Bean public Encoder feignFormEncoder() { return new SpringFormEncoder(); } }}若SpringFormEncoder 引入报错，加上下面的依赖
<dependency> <groupId>io.github.openfeign.form</groupId> <artifactId>feign-form</artifactId><version>3.3.0</version></dependency><dependency><groupId>io.github.openfeign.form</groupId><artifactId>feign-form-spring</artifactId><version>3.3.0</version></dependency>内部调用
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); }注意点
Feign进行跨服务传递MultipartFile文件
通过调用服务进行文件上传，避免每个需要上传文件的模块都写一遍上传服务，造成代码冗余。
本文主要包含通过feign进行文件上传模块。
使技术人员在开发过程中遇到问题时有地可查，有章可循。
通过feign进行跨服务传递MultipartFile文件
添加依赖
<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>添加配置文件
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<HttpMessageConverters> messageConverters; @Bean public Encoder feignFormEncoder() { return new SpringFormEncoder(new SpringEncoder(messageConverters)); }}代码示例
@FeignClient(value = "controller-center")public interface CallFrignService { @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);}感谢你能够认真阅读完这篇文章，希望小编分享的“springcloud怎么使用Feign后台内部传递MultipartFile”这篇文章对大家有帮助，同时也希望大家多多支持编程网，关注编程网行业资讯频道，更多相关知识等着你来学习!
