最近有个任务是将文件上传到服务器后再发送到另一台服务器接收，作为一个代码表述为主的程序员，文字表达能力有限，就上代码吧~~

前端代码片段

<table><tbody><tr><td>需要上传服务器的文件</td><td><input type="file" id="file0001"></td></tr></tbody>
</table>
<div class="button-container"><input type="submit" value="上传" @click="uploadMiniIO">
</div>

uploadMiniIO: function () {var that = this;var formData = new FormData();formData.append("structureFile", document.getElementById('file0001').files[0]);formData.append("structureFileType", "proj");$.ajax({url: epmsServerUrl + '/history-pms-project-transfer/upload-structure-file',type: 'POST',data: formData, // 上传formdata封装的数据包dataType: 'JSON',processData: false,// jQuery不要去处理发送的数据contentType: false, // jQuery不要去设置Content-Type请求头success: function (data) {that.info = data.data;}})
}

后台接收端代码

@PostMapping("/upload-structure-file")
public Result uploadFileByFileId(@RequestPart("structureFile") MultipartFile multipartFile, String structureFileType){Map<String, Object> map = new HashMap<>();map.put("structureFileType", structureFileType);return restTemplateUtils.postForMiniIO(pmsminiioUploadStructureFiles, multipartFile, map);
}public Result postForMiniIO(String url, MultipartFile multipartFile, Map<String, Object> reqMap) {//设置请求头HttpHeaders headers = new HttpHeaders();headers.setContentType(MediaType.MULTIPART_FORM_DATA);//设置请求体，注意是LinkedMultiValueMapByteArrayResource byteArrayResource = null;try {byteArrayResource = new ByteArrayResource(multipartFile.getBytes()) {@Overridepublic long contentLength() {return multipartFile.getSize();}@Overridepublic String getFilename() {return multipartFile.getOriginalFilename();}};} catch (IOException e) {Result.error(-1, "上传文件失败，文件二进制获取失败");}MultiValueMap<String, Object> form = new LinkedMultiValueMap<>();form.add("structureFile", byteArrayResource);form.setAll(reqMap);HttpEntity<MultiValueMap<String, Object>> files = new HttpEntity<>(form, headers);return restTemplate.postForObject(url, files, Result.class);
}//远端接收代码
@PostMapping("/upload-structure-file")
public Result uploadFileByFileId(@RequestPart("structureFile") MultipartFile multipartFile, String structureFileType){Map<String, Object> map = new HashMap<>();map.put("structureFileType", structureFileType);map.put("structureFile", multipartFile);
}