Use the jspsmartupload component in JSP to upload and download files.

Main Code for uploading files:

Step 1: import the jspsmartupload class to the project.

Step 2: When writing JSP pages, note that when using <input type = "file" name = "song" value = "scan"/>, do not forget to set the form's enctype, enctype = "multipart/form-data ".

Step 3: Main Code in Servlet

// Create a smartupload object

Smartupload upload = new smartupload ();

// Initialize the smartupload object

Upload. initialize (this. getservletconfig (), request. Response );

// Call the upload Method

Upload. Upload ();

// Save the uploaded file to the specified directory

Upload. Save ("/upload ");

 

Download the main code:

// Create a smartupload object

Smartupload upload = new smartupload ();

// Initialize the smartupload object

Upload. initialize (this. getservletconfig (), request. Response );

// Call the Download Method

Upload. downloadfile ("/download ");

For detailed operations, see the smartupload document.