1.前端代码-HTML
<div class="second-second" v-show="firstflag"> <input type="file" ref="clearFile" @change="getFile($event)" class="add-file-right-input" accept=".txt,.docx,.doc,.pdf" style="margin-top: 20px"> <span style="display:block;margin-top: 20px">反对扩展名：.txt .doc .docx .pdf </span> <div class="file" v-html="loadxy"></div> <div style="margin-top: 20px"> <input type="button" class="btn btn-primary" @click="submitAddFile" value="开始上传"/> </div></div>
2.前端代码-JS
/*抉择文件*/ getFile:function(event){ var file = event.target.files; for(var i = 0;i<file.length;i++){ //上传类型判断 var imgName = file[i].name; var idx = imgName.lastIndexOf("."); if (idx != -1){ var ext = imgName.substr(idx+1).toUpperCase(); ext = ext.toLowerCase( ); if (ext!='pdf' && ext!='doc' && ext!='docx' && ext!='txt'){ }else{ this.addArr.push(file[i]); } }else{ } } },/*开始上传*/ submitAddFile:function(){ if(0 == this.addArr.length){ layer.msg("请抉择文件", {icon: 1}); return; } var formData = new FormData(); for(var i=0;i<this.addArr.length;i++){ formData.append('file',this.addArr[i]); } const vm = this $.ajax({ type: "POST", url: baseURL + "air/crackCalculateController/upload", contentType:false, processData:false, data: formData, success: function(r){ if(r.code == 0){ layer.msg("操作胜利", {icon: 1}); vm.loadxy = r.ret }else{ layer.alert(r.msg); } } }); }
3.后盾代码-Controller
@PostMapping("/upload") @RequiresPermissions("air:crackCalculate:save") public R upload(@RequestParam("file") MultipartFile file) throws IOException { if (file.isEmpty()) { return R.ok().put("ret", "上传失败，请抉择文件"); } String fileName = file.getOriginalFilename(); String lastStr = fileName.substring(fileName.lastIndexOf(".")); String result = ""; if (".txt".equals(lastStr)) { //10,100,1000/n20,200,2000/n30,300,3000/n result = FileToString.convertStreamToString(file.getInputStream()); } else if ("doc".equals(lastStr)){ String prefix = fileName.substring(fileName.lastIndexOf(".")); File filef = null; try { filef = File.createTempFile(fileName, prefix); file.transferTo(filef); result = FileToString.convertDocToString(filef); } catch (Exception e) { e.printStackTrace(); } finally { // 操作完下面的文件 须要删除在根目录下生成的临时文件 File f = new File(filef.toURI()); f.delete(); } } else if (".docx".equals(lastStr)){ String prefix = fileName.substring(fileName.lastIndexOf(".")); File filef = null; try { filef = File.createTempFile(fileName, prefix); file.transferTo(filef); result = FileToString.convertDocxToString(filef); } catch (Exception e) { e.printStackTrace(); } finally { // 操作完下面的文件 须要删除在根目录下生成的临时文件 File f = new File(filef.toURI()); f.delete(); } } return R.ok().put("ret", result); }}