Java JSP struts2.x File upload

/**

*

* Operating system: WIN-XP

* Background program: Java

* Front-end script: javascript/extjs/html

*

* Tried: Submitted by the form submission, in the background request.getinputstream () to the value of * is null, and *request.getcontentlength () can be normal value. Using Request.getread () throws an error, the request has been *called after the network check, it seems that struts filtered out. Find another way, and then you have the following code.

*/

@ParentPackage (Strutsnamespace.pp_json)

@Namespace ("")

@Action ("Savebillfile")

public class Savebillfileaction extends Sdbaseaction {

Private static final long serialversionuid = 5156288255337069381L;

Private String msg;

private int ErrNo;

Private String ContentType;

Private File Docmentfile;

Private String FileName;

Private Boolean success = false;

Private String Billtype;

Private String billID;

Public String upload () throws Exception {

Connection con =null;

Statement stm =null;

PreparedStatement pst=null;

errno=0;

msg= "";

if (!checkfile ())

{

return SUCCESS;

}

if (Docmentfile.isfile ())

{

FileInputStream in = new FileInputStream (docmentfile);

try{

con=connectpools.getconnection (getsession ());

Date dt=new date ();

String date = dateformat.getdateinstance (). Format (DT);

String sSQL = "INSERT into Billfiles (billtype,billid,filename,fileext,uploaddate,filesize,opid,filedata) VALUES (?,?,?,?,?,?,?,?) ";

PST = con.preparestatement (sSQL);

pst.setstring (1, Billtype);

pst.setstring (2, billID);

pst.setstring (3, fileName);

pst.setstring (4, Filename.substring (Filename.indexof ("."), Filename.length ()));

pst.setstring (5, date);

Pst.setlong (6, in.available ());

Pst.setint (7, ((Employinfo) this.getsession (). getattribute ("employ")). GetId ());

Pst.setbinarystream (8,in,in.available ());

pst.executeupdate ();

}

catch (Exception e) {

errno=1;

msg=e.getmessage ();

}

finally{

try{

pst.close ();

stm.close ();

con.close ();

}catch (Exception e)

{

errno=1;

msg=e.getmessage ();

}

}

}

setsuccess (true);

return SUCCESS;

}

Private Boolean checkfile () {

TODO auto-generated Method Stub

//Check file

return true;

}

public void Setfilename (String fileName) {

This.filename = FileName;

}

public void Setuploadfilename (String fileName) {

This.filename = FileName;

}

public void Setuploadcontenttype (String contentType) {

This.contenttype = ContentType;

}

public void Setupload (File docmentfile) {

This.docmentfile = Docmentfile;

}

Public String getmsg () {

return msg;

}

public void Setsuccess (Boolean success) {

This.success = success;

}

Public Boolean getsuccess () {

return success;

}

public void Setbilltype (String billtype) {

This.billtype = Billtype;

}

public void Setbillid (String billid) {

This.billid = billID;

}

public int Geterrno () {

return ErrNo;

}

public void Setmsg (String msg) {

this.msg = msg;

}

public void setContentType (String contentType) {

This.contenttype = ContentType;

}

}

To this Java code is complete:

Next is the script submit after found the upload progress bar has been there to walk around, I dropped a kidney, another Baidu. Because I do not jump, Baidu on many methods in my this seems unworkable. Had to use Ajax instead.

/*

* Ajax that part of the script is as follows

*/

var params={};

Ext.apply (Params,{billtype:this.billtype});

Ext.apply (Params,{billid:this.billid});

Ext.Ajax.request ({

URL: ' Savebillfile!upload.action ',

timeout:10000,

Scope:this,

Params:params,

Isupload:true,

Form: "Ufile",/* found this form seems a little different ... ExtJS directly written form seems to have a problem? */

Success:function (response)

{

var str = response.responseText.substring (response.responseText.indexOf (' {'), RESPONSE.RESP Onsetext.indexof ('} ') +1);//The front-desk script returned to be <pre> frame up. Well, for normal use, find out the JSON manually.

var objformdata = Ext.util.JSON.decode (str);

if (objformdata.errno==0)

{

Ext.Msg.show ({

Title: ' Hints ',

Buttons:Ext.MessageBox.OK,

Msg: ' Upload success! ‘,

fn:function (button,e)

{

//upload successful close upload attachment window

var window = ext.getcmp (' Selectfileid ');

window.close ();

//Refresh List

var win= ext.getcmp (' Billfileid ');

var Grid = Win.findbyid (' Billfile_grid ');

var store = Grid.store;

Store.load ({

Params:params

       });

}

});

}

}

});

/*

* The last code to post a form

*/

var fpanel=new ext.panel ({

Layout: ' Form ',

HEIGHT:40,

HTML: ' <form id= ' ufile ' enctype= ' multipart/form-data ' > Please select attachment <input type= ' file ' name= ' upload ' size= ' > </form> '

});

This article is from the "myplace" blog, make sure to keep this source http://bogy324.blog.51cto.com/4330880/1602335

Java JSP struts2.x File upload