vue 文件上传，供大家参考，具体内容如下

首先 先说一下想要实现的效果

就如截图所见，需要将企业和需要上传的文件提交到后台处理，那么接下来就说如何实现

vue 实现

vue 页面代码

<el-upload class="upload-demo" ref="upload" action="doUpload" :limit="1" :file-list="fileList" :before-upload="beforeUpload"> <el-button slot="trigger" size="small" type="primary">选取文件</el-button> <a href="./static/moban.xlsx" rel="external nofollow" download="模板"><el-button size="small" type="success">下载模板</el-button></a> <!-- <el-button style="margin-left: 10px;" size="small" type="success" @click="submitUpload">上传到服务器</el-button> --> <div slot="tip" class="el-upload__tip">只能上传excel文件，且不超过5MB</div> <div slot="tip" class="el-upload-list__item-name">{{fileName}}</div> </el-upload> <span slot="footer" class="dialog-footer"> <el-button @click="visible = false">取消</el-button> <el-button type="primary" @click="submitUpload()">确定</el-button> </span>

上传之前的大小校验

beforeUpload(file){ debugger console.log(file,'文件'); this.files = file; const extension = file.name.split('.')[1] === 'xls' const extension2 = file.name.split('.')[1] === 'xlsx' const isLt2M = file.size / 1024 / 1024 < 5 if (!extension && !extension2) { this.$message.warning('上传模板只能是 xls、xlsx格式!') return } if (!isLt2M) { this.$message.warning('上传模板大小不能超过 5MB!') return } this.fileName = file.name; return false // 返回false不会自动上传 },

手动上传确认提交

submitUpload() { debugger console.log('上传'+this.files.name) if(this.fileName == ""){ this.$message.warning('请选择要上传的文件！') return false } let fileFormData = new FormData(); fileFormData.append('file', this.files, this.fileName);//filename是键，file是值，就是要传的文件，test.zip是要传的文件名 let requestConfig = { headers: { 'Content-Type': 'multipart/form-data' }, } this.$http.post(`/basedata/oesmembers/upload?companyId=`+this.company, fileFormData, requestConfig).then((res) => { debugger if (data && data.code === 0) { this.$message({ message: '操作成功', type: 'success', duration: 1500, onClose: () => { this.visible = false this.$emit('refreshDataList') } }) } else { this.$message.error(data.msg) } }) }

后台

/** * 上传文件 */ @PostMapping("/upload") @RequiresPermissions("basedata:oesmembers:upload") public R upload(@RequestParam("file") MultipartFile file, @RequestParam("companyId") Integer companyId) { System.out.println(companyId); if (file.isEmpty()) { throw new RRException("上传文件不能为空"); } //上传文件 相关逻辑 return R.ok();}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。