<div class="form-group"> <label for="inputEmail3" class="col-xs-3 control-label">項(xiàng)目LOGO</label> <div class="col-xs-7"> <input id="testlogo" type="file" name="icoFile" class="file-loading" /> <input type="text" name="htestlogo" id="htestlogo" onchange="addFile(this)" > </div> </div>

// 初始化獲取原有文件 $(function(){ $.ajax({ type : "post", url : "/eim/project/testFileUpload.do", dataType : "json", success : function(data) { layer.msg('操作成功！'); showPhotos(data); }, error: function(XMLHttpRequest, textStatus, errorThrown) { layer.msg('操作失敗！'); } }); }); 

function showPhotos(djson){ //后臺返回json字符串轉(zhuǎn)換為json對象 var reData = eval(djson); // 預(yù)覽圖片json數(shù)據(jù)組 var preList = new Array(); for ( var i = 0; i < reData.length; i++) { var array_element = reData[i]; // 此處指針對.txt判斷，其余自行添加 if(array_element.fileIdFile.name.indexOf("txt")>0){ // 非圖片類型的展示 preList[i]= "<div class='file-preview-other-frame'><div class='file-preview-other'><span class='file-icon-4x'><i class='fa fa-file-text-o text-info'></i></span></div></div>" }else{ // 圖片類型 preList[i]= "<img src=/"/eim/upload/getIMG.do?savePath="+array_element.fileIdFile.filePath+"&name="+array_element.fileIdFile.name+"/" class=/"file-preview-image/">"; } } var previewJson = preList; // 與上面 預(yù)覽圖片json數(shù)據(jù)組 對應(yīng)的config數(shù)據(jù) var preConfigList = new Array(); for ( var i = 0; i < reData.length; i++) { var array_element = reData[i]; var tjson = {caption: array_element.fileIdFile.fileName, // 展示的文件名 width: '120px', url: '/eim/project/deleteFile.do', // 刪除url key: array_element.id, // 刪除是Ajax向后臺傳遞的參數(shù) extra: {id: 100} }; preConfigList[i] = tjson; } // 具體參數(shù)自行查詢 $('#testlogo').fileinput({ uploadUrl: '/eim/upload/uploadFile.do', uploadAsync:true, showCaption: true, showUpload: true,//是否顯示上傳按鈕 showRemove: false,//是否顯示刪除按鈕 showCaption: true,//是否顯示輸入框 showPreview:true, showCancel:true, dropZoneEnabled: false, maxFileCount: 10, initialPreviewShowDelete:true, msgFilesTooMany: "選擇上傳的文件數(shù)量 超過允許的最大數(shù)值！", initialPreview: previewJson, previewFileIcon: '<i class="fa fa-file"></i>', allowedPreviewTypes: ['image'], previewFileIconSettings: { 'docx': '<i class="fa fa-file-word-o text-primary"></i>', 'xlsx': '<i class="fa fa-file-excel-o text-success"></i>', 'pptx': '<i class="fa fa-file-powerpoint-o text-danger"></i>', 'pdf': '<i class="fa fa-file-pdf-o text-danger"></i>', 'zip': '<i class="fa fa-file-archive-o text-muted"></i>', 'sql': '<i class="fa fa-file-word-o text-primary"></i>', }, initialPreviewConfig: preConfigList }).off('filepreupload').on('filepreupload', function() { // alert(data.url); }).on("fileuploaded", function(event, outData) { //文件上傳成功后返回的數(shù)據(jù)， 此處我只保存返回文件的id var result = outData.response.id; // 對應(yīng)的input 賦值 $('#htestlogo').val(result).change(); }); }

@RequestMapping(value="/uploadFile",method=RequestMethod.POST) @ResponseBody public Object uploadFile(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //轉(zhuǎn)型為MultipartHttpServletRequest MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest)request; //獲取文件到map容器中 Map<String,MultipartFile> fileMap = multipartRequest.getFileMap(); //獲取頁面?zhèn)鬟f過來的路徑參數(shù) folderPath = request.getParameter("folder"); String rootPath = BaseConfig.uploadPath; String filePath = rootPath + folderPath+"/"; //文件上傳并返回map容器，map存儲了文件信息 FileModel fileModel = UploadifyUtils.uploadFiles(filePath,fileMap); boolean flag = service.add(fileModel); if(flag){ String result = fileModel.getId()+";"+fileModel.getFilePath()+";"+fileModel.getName()+";"+fileModel.getFilePath(); Map map = new HashMap<>(); map.put("id", fileModel.getId()); //返回文件保存ID //response.getWriter().write(map); return map; } return null; } 

/** * 文件下載 * * @param savePath * 保存目錄 * @param name * 文件原名 * @param file * 保存時的名稱 包含后綴 * @param request * @param response * @return */ public static String down(String savePath, String name, String fileName, HttpServletRequest request, HttpServletResponse response) { try { String path = savePath + "/" + name; File file = new File(path); if (!file.exists()) { // 不存在 request.setAttribute("name", fileName); return "download_error";// 返回下載文件不存在 } response.setContentType("application/octet-stream"); // 根據(jù)不同瀏覽器 設(shè)置response的Header String userAgent = request.getHeader("User-Agent").toLowerCase(); if (userAgent.indexOf("msie") != -1) { // ie瀏覽器 // System.out.println("ie瀏覽器"); response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(name, "utf-8")); } else { response.addHeader("Content-Disposition", "attachment;filename=" + new String(name.getBytes("utf-8"), "ISO8859-1")); } response.addHeader("Content-Length", "" + file.length()); // 以流的形式下載文件 InputStream fis = new BufferedInputStream(new FileInputStream(path)); byte[] buffer = new byte[fis.available()]; fis.read(buffer); fis.close(); //response.setContentType("image/*"); // 設(shè)置返回的文件類型 OutputStream toClient = response.getOutputStream(); OutputStream bos = new BufferedOutputStream(toClient); //BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(bos)); bos.write(buffer); //bw.close(); bos.close(); toClient.close(); return null; } catch (Exception e) { e.printStackTrace(); //response.reset(); return "exception";// 返回異常頁面 } finally { /* if (toClient != null) { try { toClient.close(); } catch (IOException e) { e.printStackTrace(); } }*/ } }

public static FileModel uploadFiles(String savePath,Map<String,MultipartFile> fiLeMap){ //上傳文件 //附件模型對象 FileModel fm=new FileModel(); try { File file = new File(savePath); //判斷文件夾是否存在,如果不存在則創(chuàng)建文件夾 makeDir(file); if(fiLeMap!=null){ for(Map.Entry<String, MultipartFile> entity:fiLeMap.entrySet()){ MultipartFile f = entity.getValue(); if(f!=null&&!f.isEmpty()){ String uuid=UploadifyUtils.getUUID();//uuid作為保存時的文件名 String ext=UploadifyUtils.getFileExt(f.getOriginalFilename());//獲取文件后綴 //保存文件 File newFile = new File(savePath+"/"+uuid+"."+ext); f.transferTo(newFile); fm.setFileName(f.getOriginalFilename()); fm.setName(uuid+"."+ext); fm.setFilePath(savePath);//保存路徑 fm.setExt(ext); fm.setSize(f.getSize()); } } } return fm; }catch (Exception e) { log.error(e); return null; } }