SWFUpload simple use of the sample Java version (JSP)

SWFUpload official sample is PHP, here to provide a Java version of the simplest use of the sample, the use of JSP page finished all operations.

Implementation of the upload, divided into three steps:

1. JavaScript Settings swfupload section (similar to the official sample):

JS Code

2. var upload;
6. Window.onload = function() {
8. Upload = new swfupload ({
12. //URL to process file uploads   
14. Upload_url: "${pagecontext.request.contextpath}/swfupload/example.jsp?upload=1",
16. //Upload file Limit settings   
18. File_size_limit: "10240", //10MB
20. File_Types: "*.jpg;*.gif;*.png", //Here can also be changed to the type you want to limit, for example: *.doc;*.wpd;*.pdf
22. File_types_description: "Image Files",
24. File_upload_limit: "0",
26. File_queue_limit: "1",
28. //Event handling settings (all of their own definition processing methods are in the Handler.js file)   
30. File_dialog_start_handler:filedialogstart,
32. File_queued_handler:filequeued,
34. File_queue_error_handler:filequeueerror,
36. File_dialog_complete_handler:filedialogcomplete,
38. Upload_start_handler:uploadstart,
40. Upload_progress_handler:uploadprogress,
42. Upload_error_handler:uploaderror,
44. Upload_success_handler:uploadsuccess,
46. Upload_complete_handler:uploadcomplete,
48. //Button Settings   
50. Button_image_url: "Swfupload/xpbutton.png", //button icon
52. button_placeholder_id: "Spanbuttonplaceholder",
54. Button_width:61,
56. Button_height:22,
58. //SWF settings   
60. Flash_url: "swfupload/swfupload.swf",
62. Custom_settings: {
64. Progresstarget: "fsuploadprogress",
66. Cancelbuttonid: "btncancel"
68. },
70. //Debug settings   
72. Debug: false
74. });
76. }

2, the page display part:

HTML code

2. < Div class="Flash" id="fsuploadprogress" > </ Div >   
4. < Div style="padding-left:5px;" >   
6.      < span   id = > </ span >   
8.      < input   id = "Btncancel"   type = "button"   value = "Cancel"   onclick = "cancelqueue (upload);"    
10. Disabled = "Disabled"  style="MARGIN-LEFT:2PX; height:22px; font-size:8pt; " />
12. </ Div >   

3, the Java processing file upload part:

Java code

2. String uploadsign = request.getparameter ("upload");
4. String RootPath = Request.getparameter ("RootPath");
6. String path = request.getparameter ("path");
8. if (RootPath = = null) RootPath = ""  ;
10. RootPath = Rootpath.trim ();
12. if (rootpath.equals ("")) {
14. RootPath = Application.getrealpath ("/swfupload/files");
16. }
18. if (Path = = null) {
20. Path = RootPath;
22. }Else{
24. Path = new String (Base64.decodebase64 (Path.getbytes ()));
26. }
30. //upload Operation   
32. if (null ! = uploadsign &&! ) "" . Equals (Uploadsign)) {  
34. Fileitemfactory factory = new diskfileitemfactory ();
36. Servletfileupload upload = new servletfileupload (Factory);
38. //upload.setheaderencoding ("UTF-8");   
40. Try {  
42. List items = upload.parserequest (request);
44. if (null ! = items) {
46. Iterator ITR = Items.iterator ();
48. while (Itr.hasnext ()) {
50. Fileitem item = (Fileitem) itr.next ();
52. if (Item.isformfield ()) {
54. Continue  ;
56. }Else{
58. //The file name of the uploaded file with the current precision to the second date   
60. SimpleDateFormat sdf=New SimpleDateFormat ("Yyyymmddkkmmss");
62. String type = Item.getname (). Split ("\ \" ). ) [1]; //Get file type   
64. File Savedfile = new file (Path,sdf.format (new Date ()) +"."  +type);
66. Item.write (Savedfile);
68. }
70. }
72. }
74. }catch(Exception e) {
76. E.printstacktrace ();
78. }
80. }
    

SWFUpload simple use of the sample Java version (JSP)