Ext5实现html5的拖拽上传功能 博客分类: ext5 hmtl5 html5extuploadFile
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2024-03-24 10:42:34
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这方面网络上的资源有很多,所以直接上代码了。
ext使用SenchaArchitect开发
后台用的jersey
在最外层的window上添加代码
在文件导航window上添加dropFileToUpload方法
ext使用SenchaArchitect开发
后台用的jersey
@POST @Path("/upload") @Consumes(MediaType.MULTIPART_FORM_DATA) public Response upload(@NotBlank @FormDataParam("SID") String sid, @NotNull @FormDataParam("size") Long size, @NotNull @FormDataParam("dmsFileId") Long dmsFileId, @FormDataParam("file") InputStream fileInputStream, @FormDataParam("file") FormDataContentDisposition contentDispositionHeader) { try { Boolean valid = sessionsService.checkSessionsValid(sid); if (valid == null) { throw new Exception("session not exist !"); } if (!valid) { throw new Exception("session is invalid !"); } // Get Configuration String names[] = { "system.dms.upload.destFolder", "system.dms.upload.maxFilesizeInBytes", "system.dms.upload.tempFolder", "system.dms.upload.allowed", }; Map configurations = configurationsService.getSystemConfigurationsByName(names); String destFolder = ((Configurations) configurations.get("system.dms.upload.destFolder")).getDefaultvalue(); Integer tempMaxFilesizeInBytes = Utils.getInteger( ((Configurations) configurations.get("system.dms.upload.maxFilesizeInBytes")).getDefaultvalue()); int maxFilesizeInBytes = -1; if (tempMaxFilesizeInBytes != null) { maxFilesizeInBytes = tempMaxFilesizeInBytes.intValue(); } String tempDir = ((Configurations) configurations.get("system.dms.upload.tempFolder")).getDefaultvalue(); boolean allowed = "1" .equals(((Configurations) configurations.get("system.dms.upload.allowed")).getDefaultvalue()); // Create Directorys File destDirFile = new File(destFolder); if (!destDirFile.exists()) { destDirFile.mkdirs(); } File tempDirFile = new File(tempDir); if (!tempDirFile.exists()) { tempDirFile.mkdirs(); } Sessions session = sessionsService.getSessions(sid); Long usersId = session.getUserid(); int maxSize = 1073741824; String fileName = contentDispositionHeader.getFileName(); // Check dmsFileId if exist DmsFiles file = dmsFilesService.findById(DmsFiles.class, dmsFileId); if (file == null) { throw new Exception("DmsFileId is not exist :" + dmsFileId); } // Check if file size is too big if (!((maxFilesizeInBytes == -1 || maxFilesizeInBytes >= size) && size <= maxSize)) { throw new Exception("File Upload FAILED. File is too Big : " + size); } // Check if dest Folder exist and create it if necessary destDirFile = new File(destFolder + dmsFilesService.getRelativIdFolderPath(dmsFileId)); if (!destDirFile.exists()) { destDirFile.mkdirs(); } String datapath = destFolder + dmsFilesService.getRelativIdFilePath(dmsFileId); if (!destFolder.endsWith("/") && !destFolder.endsWith("\\")) { destFolder += "/"; } // save the file to the server saveFile(fileInputStream, datapath); // Write DmsFile Info TXT for disaster recovery RandomAccessFile recorvery_infoFile = new RandomAccessFile(datapath + ".txt", "rw"); recorvery_infoFile.writeBytes("Org. Filename: " + fileName + "\r\n"); recorvery_infoFile.writeBytes("Filesize: " + size + "\r\n"); recorvery_infoFile.writeBytes("Upload Date: " + new Date() + "\r\n"); recorvery_infoFile.writeBytes("Upload User ID:" + usersId + "\r\n"); recorvery_infoFile.writeBytes("DMSFile ID : " + dmsFileId + "\r\n"); recorvery_infoFile.close(); dmsFilesService.updateFileDataPath(dmsFileId, datapath); //update fileSize dmsFilesService.mergeFileSize(dmsFileId, size); log.info("File Uploaded succesfully with ID " + dmsFileId); log.info("File saved to server location : " + datapath); return Response.ok("ok").build(); } catch (Exception e) { log.error(ExceptionUtils.getFullStackTrace(e)); return Response.serverError().entity(e.getMessage()).build(); } }
在最外层的window上添加代码
onMainViewportAfterRender: function(component, eOpts) { //drage and drop file to upload in explorer file win window.ondragenter = function(e) { e.preventDefault(); }; window.ondragover = function(e) { e.preventDefault(); }; window.ondrop = function(e) { e.preventDefault(); }; window.ondragleave = function(e) { e.preventDefault(); }; //xxxxxx }
在文件导航window上添加dropFileToUpload方法
{ localStorage.setItem('dmsId',result); var fd = new FormData(); fd.append("file", tempfile); fd.append("SID", localStorage.getItem('sid')); fd.append("size", file.size); fd.append("dmsFileId",result); var xhr = new XMLHttpRequest(); xhr.upload.addEventListener("progress", function(){ dropUploadProgress.call(controller,arguments); }, false); xhr.addEventListener("load",function(){ var successFileSize = Number(localStorage.getItem("successFileSize")); var filesSize = Number(localStorage.getItem("filesSize")); var failedFileSize = Number(localStorage.getItem("failedFileSize")); successFileSize++; localStorage.setItem("successFileSize",successFileSize); if((successFileSize+failedFileSize)==filesSize){ refreshFileList.call(controller,parentnode.data.folderId,arguments); }else{ dropFileToUpload(file, controller, tree); } } , false); xhr.upload.addEventListener("error", function(){ var successFileSize = Number(localStorage.getItem("successFileSize")); var filesSize = Number(localStorage.getItem("filesSize")); var failedFileSize = Number(localStorage.getItem("failedFileSize")); failedFileSize++; localStorage.setItem("failedFileSize",failedFileSize); dropUploadFailed.call(controller,arguments); if((successFileSize+failedFileSize)==filesSize){ refreshFileList.call(controller,parentnode.data.folderId,arguments); }else{ dropFileToUpload(file, controller, tree); } }, false); xhr.open("POST", "../../../rest/FileExplorerPortal/upload"); xhr.send(fd); }
refreshFileList: function(folderID, evt) { var progressBar = this.getView().lookupReference('dropFileToUploadProgressBar'); if(progressBar.isVisible()){ progressBar.hide(); } progressBar.setValue(0); progressBar.updateText('0%'); var successFileSize = Number(localStorage.getItem("successFileSize")); var filesSize = Number(localStorage.getItem("filesSize")); var failedFileSize = Number(localStorage.getItem("failedFileSize")); if(filesSize>1){ Ext.Msg.show({ title:'Result', message: 'Upload successful:'+successFileSize+" , Upload failed:"+failedFileSize, buttons: Ext.Msg.OK }); }else if(failedFileSize==1){ Ext.Msg.show({ title:'Error', message: 'The file upload failed, please try again...', buttons: Ext.Msg.OK }); } if(folderID){ this.getView().lookupReference('FilesList').store.load({params:{folderId:folderID}}); } }, dropUploadProgress: function(evt) { var successFileSize = localStorage.getItem("successFileSize"); var filesSize = localStorage.getItem("filesSize"); var progressBar = this.getView().lookupReference('dropFileToUploadProgressBar'); if (evt[0].lengthComputable) { if(!progressBar.isVisible()){ progressBar.show(); } var percentComplete = Math.round(evt[0].loaded*100 / evt[0].total); var filesInfo = " ("+successFileSize+"/"+filesSize+")"; progressBar.setValue(percentComplete/100); progressBar.updateText(percentComplete+'%'+filesInfo); }else { progressBar.updateText('Uploding....'); } }, dropUploadFailed: function(evt) { var progressBar = this.getView().lookupReference('dropFileToUploadProgressBar'); progressBar.setValue(0); progressBar.updateText('0%'); progressBar.hide(); },