vue+el-upload實現多檔案動態上傳
阿新 • • 發佈:2021-10-18
+el-upload多檔案動態上傳,供大家參考,具體內容如下
使用場景
點選【新增/刪除】,可動態增加/刪除行數,併為每行上傳附件,附件暫存前端,點選【上傳】可以將所有附件和部分名稱同時提交後臺,實現表格的動態多檔案上傳。其中el-upload ,相關鉤子函式可檢視el-upload 官方文件
這裡的表格行的新增是在彈框中填完再寫入的,也可直接在表格中新增行,然後填寫內容(template slot-scope=“scope” 註釋部分程式碼),這裡僅提供思路
程式碼html部分
<div class="vue-box"> <div class="title-line"> 其他必須持有的證照<el-button type="primary" size="mini" style="height: 20px;padding-top: 3px !important;margin-left: 50px" icon="el-icon-plus" @click="handleAddDetails">新增行</el-button> <el-button type="primary" size="mini" style="height: 20px;padding-top: 3px !important;margin-left: 50px" icon="el-icon-plus" @click="doFileUpload()">上傳</el-button> </div> <el-table :row-class-name="rowClassNameDeal" :data="tableData" style="width: 100%;"> <el-table-column prop="id" width="50" label="序號"> </el-table-column> <el-table-column prop="cardName" width="180" label="證照名稱"> <!--<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="證件號碼"> <!--<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="選擇日期"> </el-date-picker> </template>--> </el-table-column> <el-table-column prop="endDate" width="180" label="結束日期"> <!--<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="選擇日期"> </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">點選上傳</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)">刪除</el-button> </template> </el-table-column> </el-table> <el-dialog title="證照資訊" :visible.sync="addCardVisible" width="40%"> <el-form :model="fileInfo"> <el-form-item label="證照名稱" :label-width="labelWidth"> <el-input v-model="fileInfo.cardName" autocomplete="off" style="width: 100%;"></el-input> </el-form-item> <el-form-item label="證件號碼" :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</elwww.cppcns.com-button> <el-button type="primary" @click="addFileDetail">確 定</el-button> </div> </el-dialog> </div>
部分程式碼
let nodeVue = new Vue({ el: '.vue-box',data: { labelWidth: '150px',tableData: [],uploadParams:{ fileTagName: '' },totalFileList:[],totalFileNameList:[],addCardVisible:false,fileInfo:{ cardName:'',cardNo:'',startDate:'',endDate:'' } },methods:{ // 檔案相關 uploadRemove:function(file) { let that = this; // 刪除檔案列表中的檔案 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) } } },// 上傳檔案引數設定 beforeUploadFile:function(row) { console.log(row.cardName); this.uploadParams.fileTagName=row.cardName this.uploadParams.fid=row.id },// 下載檔案,點選檔案列表中的檔案下載 uploadPreview:function(file){ console.log(file); },uploadHandleExceed:function(files,fileList) { this.$message.warning(`當前限制選擇 1 個檔案`); },uploadBeforeRemove:function(file) { return this.$confirm(`確定移除 ${ file.name }?`); },// 附件新增行,開啟新增行彈框 handleAddDetails(){ let that = this; that.addCardVisible = true; that.fileInfo.cardName = ''; that.fileInfo.cardNo = ''; that.fileInfo.startDate = ''; that.fileInfo.endDate = ''; },// 向表格資料中新增一行 addFileDetail(){ let that = this; if (that.tableData == undefined) { that.tableData = new Array(); } let obj = {}; obj.id = 0; obj.cardName = that.fileInfo.cardName; obj.cardNo = that.fileInfo.cardNo; obj.startDate = that.fileInfo.startDate; obj.endDate = that.fileInfo.endDate; obj.fileUploadedList=[]; that.tableData.push(obj); that.addCardVisible = false; },// 刪除行 handleDeleteDetails(row){ let that = this; that.tableData.splice(row.id-1,1); //同時 刪除檔案列表及關聯列表中的資料 let tmpFileName = ''; http://www.cppcns.comfor(let i=0;i<that.totalFileNameList.length;i++){ if(that.totalFileNameList[i].cardName === row.cardName){ tmpFileName = that.totalFileNameList[i].fileName;// 先暫存再執行刪除操作 that.totalFileNameList.splice(i,1); } } for(let i=0;i<that.totalFileList.length;i++){ if(that.totalFileList[i].name === tmpFileName){ that.totalFileList.splice(i,rowClassNameDeal({row,rowIndex}) { //把每一行的索引放進row.id,此方法用於生成表格中的序號,當在表格中填寫內容時,每一行都需要繫結不同的v-model row.id = rowIndex+1; },// 自定義上傳,只將檔案暫存在前端 dynamicUpload(content){ let that = this; if(content.data.length === 0){ that.$message.warning(`請填寫證照名稱!!!`); 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('改檔案已上傳,請重新選擇檔案上傳!!!'); that.$refs[content.data].clearFiles(); return false; } } // 將檔案加入到待傳輸的檔案列表 that.totalFileList.push(content.file) let fileNameData = { cardName: content.data,fileName: content.file.name } // totalFileNameList 儲存檔案和表格內容的關聯關係,這裡只關聯了證照名稱 that.totalFileNameList.push(fileNameData) },// 執行上傳操作將檔案和表格資訊一起傳送到後臺 doFileUpload(){ let that = this; if(that.totalFileList.length === 0){ that.$message.warning("請上傳檔案!!!"); return; } // 上傳檔案需要用FormData,processData和contentType 兩個引數必須設定,否則上傳不成功 const params = new FormData(); // 為上傳的每個檔案命名,方便後臺獲取時與表格資料關聯 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)); $.ajax({ url:baseurl+"/testupload/fileUpload",type:"POST",dataType: "json",processData: false,//用於對data引數進行序列化處理 這裡必須false contentType: false,//必須 data:params,success:function(res){ that.$message.warning('上傳成功'); } }); } },created: function(){ } })
後臺接收程式碼
@Controller @RequestMapping("/testupload") public class RegisterController { // 附件從 request中獲取 @RequestMapping("/fileUpload") @ResponseBody public ServerResponse fileupload(HttpServletRequest request,String fileNameList){ try{ if(fileNameList == null){ throw new Exception("請選擇檔案後上傳!!!"); } // 1. 上傳的位置 String path = "E:\\uploadfile"; //判斷該路徑是否存在 File file = new File(path); if (!file.exists()) { file.mkdirs(); } // 處理以字串形式上傳的關聯資料資訊 http://www.cppcns.com JSONArray jsonArray = JSON.parseArray(fileNameList); // 遍歷關聯列表 for(Object object : jsonArray){ JSONObject jsonObject = JSON.parseObject(object.toString()); System.out.println(jsonObject.getString("cardName")); // 獲取檔案 MultipartFile file1 = ((MultipartHttpServletRequest) request).getFile(jsonObject.getString("fileName")); // 獲取檔案資訊 String filename = file1.getOriginalFilename(); System.out.println(filename); // 儲存檔案 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內容,希望對大家的學習有所幫助,也希望大家多多支援我們。