Vue3使用ElementPlus中的el-upload手动上传并调用上传接口

前端代码

	   <div class="upload-div"><el-uploadv-model:file-list="form.fileImageList"ref="uploadRef"capture="false"action="#"accept="image/*"list-type="picture-card":on-change="handleChange":auto-upload="false":on-preview="handlePictureCardPreview":on-remove="handleRemove":multiple="true"><el-icon><Plus/></el-icon></el-upload><el-dialog v-model="dialogVisible" class="image-dialog"><img style="width: 100%;height: 100%" w-full :src="dialogImageUrl" alt="Preview Image"/></el-dialog></div>

const fileBinaryList = ref([]);
const dialogImageUrl = ref('');
const dialogVisible = ref(false);
const buttonLoading = ref(false);const handleChange = (file, files) => {// file是当前上传的文件，files是当前所有的文件，fileBinaryList.value = files;
};const handlePictureCardPreview = (file) => {dialogImageUrl.value = file.url;dialogVisible.value = true
}const handleRemove = (file) => {delImageByName(file.name).then(response => {proxy.$modal.msgSuccess("删除成功");}).finally(() => {});
}function submitForm() {let formData = new FormData();  //FormData中的参数formData.append('id', form.value.id);fileBinaryList.value.forEach((item) => {formData.append('files', item.raw);});uploadBinaryImage(formData);proxy.$modal.msgSuccess("修改成功");
}

前端定义接口

export function uploadBinaryImage(data) {return request({url: '/update/update/uploadBinaryImage',method: 'post',data: data,headers: {'Content-Type': 'multipart/form-data'}})
}

后端代码

实体类

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.web.multipart.MultipartFile;/*** @author: rattcs* @date: 2023/1/13*/
@Data
@AllArgsConstructor
@NoArgsConstructor
public class UploadDto {private String id;}

定义接口

	/*** 上传二进制文件图片集合*/@SaCheckPermission("update:update:uploadBinaryImage")@Log(title = "上传二进制文件图片", businessType = BusinessType.INSERT)@PostMapping("/uploadBinaryImage")public void uploadBinaryImage(@RequestBody @RequestParam("files") MultipartFile[] files, UploadDto bo) {iInvestigationRiverLakeDischargeOutletsService.uploadBinaryImage(files,bo);}

上传文件并插入数据库数据

	@Value("${upload.dir}")private String UPLOAD_DIR;@Overridepublic void uploadBinaryImage(MultipartFile[] files,UploadDto uploadDto) {String id = uploadDto.getId();for (MultipartFile file : files) {try {// 检查上传目录是否存在，不存在则创建File uploadDir = new File(UPLOAD_DIR);if (!uploadDir.exists()) {uploadDir.mkdirs();}// 获取文件名String fileName = file.getOriginalFilename();String suffix = file.getOriginalFilename().split("\\.")[1];// 设置上传文件的保存路径String fileUploadName = java.util.UUID.randomUUID() + "." + suffix;Path filePath = uploadDir.toPath().resolve(fileUploadName);// 将文件复制到指定路径Files.copy(file.getInputStream(), filePath, StandardCopyOption.REPLACE_EXISTING);investigationImageMapper.insert(new InvestigationImage() {{setInvestigationId(Long.valueOf(id));setImageUrl(fileUploadName);setImageName(fileUploadName);setCreateTime(new Date());}});} catch (IOException e) {e.printStackTrace();}}}