ExtJS: File Upload instance

ExtJS: File Upload instance

ExtJS: File Upload instance

Var ext_dateFormat = 'Y-m-d H: I: s'; var dateFormat = 'yyyy-MM-dd HH: mm: ss'; var date = new Date (); ext. onReady (function () {var partition P = Ext. create ('ext. form. panel ', {renderTo: 'fi-form', width: 500, frame: true, title: 'file upload', bodyPadding: '10 10 0', ults: {anchor: '200', allowBlank: false, msgTarget: 'nee', labelWidth: 80}, items: [{xtype: 'textfield ', fieldLabel: 'sample number', id: 'finfo', name: 'fin Fo '}, {xtype: 'Container', layout: 'hbox', items: [{xtype: 'textfield', fieldLabel: 'Current longitude ', id: 'flongout ', name: 'background', msgTarget: 'day', allowBlank: false, labelWidth: 80}, {xtype: 'textfield ', fieldLabel: 'Current latitude', id: 'flatout', name: 'flatout', msgTarget: 'day', allowBlank: false, labelWidth: 80}]}, {xtype: 'textfield ', fieldLabel: 'upload time', id: 'ftime', name: 'ftime', // yyyy-MM- Dd HH: mm: ssvalue: Ext. date. format (new Date (date. getFullYear (), date. getMonth (), date. getDate (), date. getHours (), date. getMinutes (), date. getSeconds (), ext_dateFormat), listeners: {'focal ': function () {WdatePicker ({dateFmt: dateFormat}) ;}}, {xtype: 'filefield ', id: 'fiupload', emptyText: 'click the right button to select a file! ', FieldLabel: 'select file', name: 'fiupload', buttonText: 'browse file', buttonConfig: {iconCls: 'upload-icons'}], buttons: [{text: 'save file', handler: function () {var writable ORM = this. up ('form '). getForm (); if (writable Orm. isValid () {mongoorm. submit ({type: 'ajax ', url: 'files/addData. action ', method: "POST", waitMsg:' uploading. Please wait... ', success: function (form, action) {Ext. msg. alert ('success', 'file uploaded successfully! ');}, Failure: function (form, action) {Ext. msg. alert ("Failure", "File Upload Failed") ;}}}}, {text: 'reupload', handler: function () {this. up ('form '). getForm (). reset () ;}}]}) ;});

Core background processing methods:

Private static final int BUFFER_SIZE = 16*1024; public String addData () throws Exception {Timestamp ts = new Timestamp (System. currentTimeMillis (); SimpleDateFormat df = new SimpleDateFormat ("yyyyMMddHHmmssSSS"); // set the date format ts = Timestamp. valueOf (this. ftime); System. out. println (ts); String nowtime = df. format (new Date (); System. out. println ("uploadFileName =" + this. fiuploadFileName); System. out. println ("UploadContentType =" + this. fiuploadContentType); System. out. println (nowtime); // upload -- the folder under wapps, used to store the image String toSrc = ServletActionContext. getServletContext (). getRealPath ("upload") + "/" + nowtime + getFileExp (this. fiuploadFileName); // use the time stamp as the file name String toFilename = nowtime + getFileExp (this. fiuploadFileName); String toSrcPath = ". /upload/"+ toFilename; String toinfo = this. finfo; Double tolo Ng133 = Double. parseDouble (this. flonglatitude); Double tolatitude = Double. parseDouble (this. flatitude); System. out. println ("original file name:" + this. fiuploadFileName); System. out. println ("file Description:" + toinfo); System. out. println ("Storage path:" + toSrcPath); System. out. println ("file name:" + toFilename); System. out. println ("Current longitude:" + tolongpolling); System. out. println ("Current dimension:" + tolatitude); File toFile = new File (toSrc); write File (this. fiupload, toFile); Files files = new Files (ts, toFilename, toSrcPath, toinfo, tolatitude, tolong.pdf); String result = filesService. addData (files); System. out. println (result); success = true; return SUCCESS;} private static void writeFile (File src, File dst) {System. out. println ("= file write ="); try {InputStream in = null; OutputStream out = null; try {in = new BufferedInputStream (new FileInputStr Eam (src), BUFFER_SIZE); out = new BufferedOutputStream (new FileOutputStream (dst), BUFFER_SIZE); byte [] buffer = new byte [BUFFER_SIZE]; while (in. read (buffer)> 0) {out. write (buffer) ;}} finally {if (null! = In) {in. close () ;}if (null! = Out) {out. close () ;}} catch (Exception e) {e. printStackTrace () ;}system. out. println ("= write successful! = ");}