After a general effort, I finally wrote the fileupload upload applet with JSP.

2) Upload method.

Please enter the file you want to upload:

2. Gets read: 1) .Request.getInputStream Perform Analysis Public ServletInputStream GetInputStream () THROWS JAVA.IOEXCEPTION2). Jakarta Universal Library

3. Download

Temp SQL:

CREATE TABLE UPLOAD

Name varchar2 (16) Primary Key Not Null,

Content Clob);

COMMIT;

Server end accepts file upload, download Commons-fileupload-1.0, http://jakarta.apache.org/commons/fileupload/

Description:

Commons is a Java sub-project in Apache Open Source Organization, which mainly involves modules that are commonly used in development, such as file upload, command line processing, database connection pool, XML configuration file processing, etc. These projects have brought about the test of practical applications from software engineers from all over the world. Effectively uses these items will have an obvious effect to the development. FILEUPLOAD is the subcommetled subproject to handle HTTP files. This article mainly describes how to use FileUPload to process the browser to submit file information. PS: General download * .jar files are copied to tomcat 5.5 / circon / lib

In addition, due to the FileUPload sub-project, it is necessary to use another project command-beanutils, so you must download beanUtils and copy the decompressed file commons-beanutils.jar to {$ Tomcat} / common / lib directory

REFERENCE:

Http://www.7880.com/info/Article-42b729a0.html I wrote the reference source code:

//inputupload.jsp

<% @ Page ContentType = "Text / HTML; Charset = BIG5"%> Please enter To upload the file:

//getupload.jsp

<% @ page contenttype = "text / html; charset = GBK"%>

<% @ Page Import = "java.util. *"%>

<% @ Page Import = "java.io. *"%>

<% @ page import = "org.apache.commons.fileUpload. *"%>

<% @ Page Import = "org.apache.commons.beanutils. *"%>

Getupload.jsp

<%

DiskfileUpload DFU = New DiskfileUpload ();

// Settings Allow users to upload file size, unit: byte

DFU.SetSizeMax (1000000);

// Maximum Size That Will Be Stored in Memory?

/ / Set up to only the data stored in the memory, unit: byte

Dfu.setsizetHold (4096);

// Setting Once the file size exceeds the value of getsizethreshold (), the data is stored in the directory DFU.SetRepositoryPath ("f: // public") ("f: // public");

// Start reading upload information

Try {

List fileItems = dfu.parsequest (required);

%>

<%

// handle each uploaded file

Iterator i = fileItems.Item ();

String name = NULL;

Long size = 0;

While (I.hasNext ())

{

FileItem Fi = (fileItem) i.next ();

/ / Ignore all form information not not the file domain

IF (! fi.isformfield ()) {

Name = FI.GETNAME ();

SIZE = fi.getsize ();

IF ((Name == Null || Name.equals (")) && size == 0)

CONTINUE;

Name = FI.GETNAME ();

SIZE = fi.getsize ();

Name = name.replace (':', '_');

Name = name.replace ('//', '_');

File Writefile = New File ("f: // public", name);

FI.WRITE (WRITEFILE);

}

} catch (fileUploadexception fue)

{Fue.PrintStackTrace ();}

%>

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experience:

1. The API is very important. It is important than any reference book!

2. Anything can only be used as a reference, only what you write is your own!

3. What difficulties encounter, only focuses and perseverance, after all, we have stood on the shoulders of others, and the road that others began to go is more difficult, so we have not attacked!

My reference source, remember, I can only give you a reference, maybe there is bug in the program, welcome to advise :)

If you have any questions, you can discuss it together :)

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