1.前端页面

   <el-upload class="upload-demo" ref="upload" :limit="3" :auto-upload="false" :on-change="handleChange"              :on-remove="handleRemove" :file-list="fileList" action="" name="paramfile">             <el-button size="small" type="primary">选取文件</el-button> </el-upload>

 

2.js部分

 一定要加这两个方法，之前没有加，以为会自动赋值filelist

  handleChange(file, fileList) {                 this.files.push(file.raw);             },             handleRemove(file, fileList) {                 this.files = this.files.filter(t => { return t != file.raw });             },

 

方法提交部分

 var formData = new FormData();                         $this.files.forEach(item => {                             formData.append("paramfile",item);                         });                         axios({                             method: 'post',                             url: "/Device/SaveVersion",                             // headers里面设置token                             headers: {                                 'Content-Type': 'multipart/form-data',                                 // "token":window.sessionStorage.getItem('token')                             },                             data: formData,
                        })

 

 

3.后端部分，提交后便可接收到数据