vue+el-upload实现多文件动态上传
作者：ichuany
这篇文章主要为大家详细介绍了vue+el-upload实现多文件动态上传，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
vue+el-upload多文件动态上传，供大家参考，具体内容如下
使用场景
点击【添加/删除】，可动态增加/删除行数，并为每行上传附件，附件暂存前端，点击【上传】可以将所有附件和部分名称同时提交后台，实现表格的动态多文件上传。其中el-upload ，相关钩子函数可查看el-upload 官方文档
这里的表格行的新增是在弹框中填完再写入的，也可直接在表格中添加行，然后填写内容（template slot-scope=“scope” 注释部分代码），这里仅提供思路
代码html部分
<div class="vue-box">
<div class="title-line">
其他必须持有的证照<el-button type="primary" size="mini" style="height: 20px;padding-top: 3px !important;margin-left: 50px" icon="el-icon-plus" @click="handleAddDetails">添加行</el-button>
<el-button type="primary" size="mini" style="height: 20px;padding-top: 3px !important;margin-left: 50px" icon="el-icon-plus" @click="doFileUpload()">上传</el-button>
</div>
<el-table
:row-class-name="rowClassNameDeal"
:data="tableData"
style="width: 100%;">
<el-table-column
prop="id"
width="50"
label="序号">
</el-table-column>
<el-table-column
prop="cardName"
width="180"
label="证照名称">
<!--<template slot-scope="scope">
<el-input size="mini" v-model="tableData[scope.row.id-1].cardName"></el-input>
</template>-->
</el-table-column>
<el-table-column
prop="cardNo"
width="180"
label="证件号码">
<!--<template slot-scope="scope">
<el-input size="mini" v-model="tableData[scope.row.id-1].cardNo"></el-input>
</template>-->
</el-table-column>
<el-table-column
prop="startDate"
width="180"
label="起始日期">
<!--<template slot-scope="scope">
<el-date-picker
v-model="tableData[scope.row.id-1].startDate"
style="width: 80%;"
size="mini"
value-format="yyyy-MM-dd"
type="date"
placeholder="选择日期">
</el-date-picker>
</template>-->
</el-table-column>
<el-table-column
prop="endDate"
width="180"
label="结束日期">
<!--<template slot-scope="scope">
<el-date-picker
v-model="tableData[scope.row.id-1].endDate"
style="width: 80%;"
size="mini"
value-format="yyyy-MM-dd"
type="date"
placeholder="选择日期">
</el-date-picker>
</template>-->
</el-table-column>
<el-table-column
prop="address"
label="附件">
<template slot-scope="scope">
<el-upload
:ref="scope.row.cardName"
:http-request="dynamicUpload"
:before-upload="beforeUploadFile(scope.row)"
:on-remove="uploadRemove"
:before-remove="uploadBeforeRemove"
:on-preview="uploadPreview"
name="upload"
:limit="1"
:data="scope.row.cardName"
:on-exceed="uploadHandleExceed"
:file-list="tableData[scope.row.id-1].fileUploadedList">
<el-button size="mini" type="info">点击上传</el-button>
</el-upload>
</template>
</el-table-column>
<el-table-column
prop="date"
width="80"
label="操作">
<template slot-scope="scope">
<el-button size="mini" type="warning" @click="handleDeleteDetails(scope.row)">删除</el-button>
</template>
</el-table-column>
</el-table>
<el-dialog title="证照信息" :visible.sync="addCardVisible" width="40%">
<el-form :model="fileInfo">
<el-form-item label="证照名称" :label-width="labelWidth">
<el-input v-model="fileInfo.cardName" autocomplete="off" style="width: 100%;"></el-input>
</el-form-item>
<el-form-item label="证件号码" :label-width="labelWidth">
<el-input v-model="fileInfo.cardNo" autocomplete="off" style="width: 100%;"></el-input>
</el-form-item>
<el-form-item label="生效日期" :label-width="labelWidth">
<el-date-picker type="date" placeholder="生效日期" value-format="yyyy-MM-dd" v-model="fileInfo.startDate" style="width: 100%;"></el-date-picker>
</el-form-item>
<el-form-item label="失效日期" :label-width="labelWidth">
<el-date-picker type="date" placeholder="失效日期" value-format="yyyy-MM-dd" v-model="fileInfo.endDate" style="width: 100%;"></el-date-picker>
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click="addCardVisible = false">取 消</el-button>
<el-button type="primary" @click="addFileDetail">确 定</el-button>
</div>
</el-dialog>
</div>
js部分代码
let nodeVue = new Vue({
el: '.vue-box',
data: {
labelWidth: '150px',
tableData: [],
uploadParams:{
fileTagName: ''
},
totalFileList:[],
totalFileNameList:[],
addCardVisible:false,
fileInfo:{
cardName:'',
cardNo:'',
startDate:'',
endDate:''
}
},
methods:{
// 文件相关
uploadRemove:function(file) {
let that = this;
// 删除文件列表中的文件
for(let i=0;i<that.totalFileNameList.length;i++){
if(that.totalFileNameList[i].fileName === file.name){
that.totalFileNameList.splice(i,1)
}
}
for(let i=0;i<that.totalFileList.length;i++){
if(that.totalFileList[i].name === file.name){
that.totalFileList.splice(i,1)
}
}
},
// 上传文件参数设置
beforeUploadFile:function(row) {
console.log(row.cardName);
this.uploadParams.fileTagName=row.cardName
this.uploadParams.fid=row.id
},
// 下载文件,点击文件列表中的文件下载
uploadPreview:function(file){
console.log(file);
},
uploadHandleExceed:function(files, fileList) {
this.$message.warning(`当前限制选择 1 个文件`);
},
uploadBeforeRemove:function(file) {
return this.$confirm(`确定移除 ${ file.name }？`);
},
// 附件添加行,打开添加行弹框
handleAddDetails(){
let that = this;
that.addCardVisible = true;
that.fileInfo.cardName = '';
that.fileInfo.cardNo = '';
that.fileInfo.startDate = '';
that.fileInfo.endDate = '';
},
// 向表格数据中添加一行
addFileDetail(){
let that = this;
if (that.tableData == undefined) {
that.tableData = new Array();
}
let obj = {};
obj.id = 0;
obj.cardName = that.fileInfo.cardName;
obj.cardNo = that.fileInfo.cardNo;
obj.startDate = that.fileInfo.startDate;
obj.endDate = that.fileInfo.endDate;
obj.fileUploadedList=[];
that.tableData.push(obj);
that.addCardVisible = false;
},
// 删除行
handleDeleteDetails(row){
let that = this;
that.tableData.splice(row.id-1, 1);
//同时 删除文件列表及关联列表中的数据
let tmpFileName = '';
for(let i=0;i<that.totalFileNameList.length;i++){
if(that.totalFileNameList[i].cardName === row.cardName){
tmpFileName = that.totalFileNameList[i].fileName;// 先暂存再执行删除操作
that.totalFileNameList.splice(i,1);
}
}
for(let i=0;i<that.totalFileList.length;i++){
if(that.totalFileList[i].name === tmpFileName){
that.totalFileList.splice(i,1)
}
}
},
rowClassNameDeal({row, rowIndex}) {
//把每一行的索引放进row.id,此方法用于生成表格中的序号，当在表格中填写内容时，每一行都需要绑定不同的v-model
row.id = rowIndex+1;
},
// 自定义上传，只将文件暂存在前端
dynamicUpload(content){
let that = this;
if(content.data.length === 0){
that.$message.warning(`请填写证照名称！！！`);
that.$refs[content.data].clearFiles();
return false;
}
for(let i=0;i<that.totalFileNameList.length;i++){
if(that.totalFileNameList[i].fileName === content.file.name){
that.$message.warning('改文件已上传，请重新选择文件上传！！！');
that.$refs[content.data].clearFiles();
return false;
}
}
// 将文件加入到待传输的文件列表
that.totalFileList.push(content.file)
let fileNameData = {
cardName: content.data,
fileName: content.file.name
}
// totalFileNameList 存储文件和表格内容的关联关系，这里只关联了证照名称
that.totalFileNameList.push(fileNameData)
},
// 执行上传操作将文件和表格信息一起发送到后台
doFileUpload(){
let that = this;
if(that.totalFileList.length === 0){
that.$message.warning("请上传文件！！！");
return;
}
// 上传文件需要用FormData，processData和contentType 两个参数必须设置，否则上传不成功
const params = new FormData();
// 为上传的每个文件命名，方便后台获取时与表格数据关联
for (let i = 0; i < that.totalFileList.length; i++) {
params.append(that.totalFileList[i].name, that.totalFileList[i]);
}
params.append("fileNameList", JSON.stringify(that.totalFileNameList));
$.ajax({
url:baseurl+"/testupload/fileUpload",
type:"POST",
dataType: "json",
processData: false, //用于对data参数进行序列化处理 这里必须false
contentType: false, //必须
data:params,
success:function(res){
that.$message.warning('上传成功');
}
});
}
},
created: function(){
}
})
后台接收代码
@Controller
@RequestMapping("/testupload")
public class RegisterController {
// 附件从 request中获取
@RequestMapping("/fileUpload")
@ResponseBody
public ServerResponse fileupload(HttpServletRequest request,String fileNameList){
try{
if(fileNameList == null){
throw new Exception("请选择文件后上传！！！");
}
// 1. 上传的位置
String path = "E:\\uploadfile";
//判断该路径是否存在
File file = new File(path);
if (!file.exists()) {
file.mkdirs();
}
// 处理以字符串形式上传的关联数据信息
JSONArray jsonArray = JSON.parseArray(fileNameList);
// 遍历关联列表
for(Object object : jsonArray){
JSONObject jsonObject = JSON.parseObject(object.toString());
System.out.println(jsonObject.getString("cardName"));
// 获取文件
MultipartFile file1 = ((MultipartHttpServletRequest) request).getFile(jsonObject.getString("fileName"));
// 获取文件信息
String filename = file1.getOriginalFilename();
System.out.println(filename);
// 保存文件
file1.transferTo(new File(path, filename));
}
}catch (Exception e) {
log.error(e.getMessage());
return ServerResponse.createByErrorMessage(e.getMessage());
}
return ServerResponse.createBySuccess();
}
}
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脚本之家。