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"htmlcode">
/**
* 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。