JSP traverse the file under the folder code _jsp programming

Displayfile.java

//*********************************
File parentdirectory = null;//current directory
ArrayList [] File = null;//holds all files in the current directory
ArrayList [] directory = null;//holds all directories in the current directory
string [] temp = null;//Temporary array holds the absolute path of all files and directories in the current directory plus the full name string
File tempfile = null;

if (Request.getparameter ("directory") ==null)
{
Parentdirectory = new File ("c://temp");//Use the servlet for the first time using the default directory for Access objects

}
Else
{
Use the page submitted directory as the default directory for the second or subsequent visit
Parentdirectory = new File (request.getparameter ("directory"));
}

temp = Parentdirectory.list ();//extract absolute path of all files and directories in the current directory plus full name string

for (int i = 0; I<list.length (); i++) {
To make a judgment is to put the directory into the directory collection of files in the file collection
Tempfile = new File (temp)
if (Tempfile.isdirectory ())
Directory.add (Tempfile);
Else
File.add (Tempfile);
}


//*********************************

Then use the two collections in the JSP page to display the directory and file directories you can use the Super connection to invoke the above servlet again

"Displayfile?directory=<% ((File) file.get (i)). GetName ()%>"

There is no environment once written the inevitable problem ~ ~ ~ ~