//*********************************
File parentDirectory = null;//Current directory
ArrayList[] file= null;//Storage all files in the current directory
ArrayList [] directory = null;//Storage all directories in the current directory
String [] temp = null;//Temporary array: String with absolute paths and complete names to store all files and directories in the current directory
File tempFile = null;
if(("directory")==null)
{
parentDirectory = new File("C://temp");//The first time using SERVLET as the access object, use the default directory
}
else
{
//When accessing the second or later, the directory submitted by the page is the default directory
parentDirectory = new File(("directory"));//
}
temp = ();//Extract the absolute path of all files and directories in the current directory and the string with complete names
for(int i = 0 ; i<() ; i++ ){
//Make a judgment: It is to put the directory into the directory collection. The file into the file collection
tempFile = new File(temp)
if(())
(tempFile);
else
(tempFile);
}
//*********************************
Then use those two collections in the JSP page to display the directory and file. The directory can be used to use a super connection and call the above Servlet again
"DisplayFile?directory=<%((File)(i)).getName()%>"
There is no environment and it is inevitable that there will be problems if you write it in one go~~~~