如何摆脱扩张？

Question

Hi I help do I then took to myName parameter was no extension, I have tried to do this with regular expressions:

String myName = request.getParameter("text").replaceFirst("[.][^.]+$", "");

But we did not help to make it)

myName parameter takes the file names, I need to be without the help to do it Come listen to explain clearer: here I enter into the form (standard html form) the name of the file, it any, whether or indeks.html indeks.tht, myname parameter accepts that I have introduced, but he accepts it as indeks.html, and I need to accept it without permission, ie, an example I introduced indeks.html in shape, the servlet that I took introduced, and then it will print it, but I need that he derived no indeks.html, just index, I hope now it is clear, ie to be able to input form and indeks.html and index, and a servlet anyway find a file)

Answer 1

I think i understood your trouble. You're looking to strip (cut off) extension from a value that is passed through text parameter (example: .html, .gif, .jpeg

This should help you. ( it cuts the value from first character Up to the first "."

  String myName = request.getParameter("text").substring(0, str.indexOf(".");

Please beware that that some characters are special and can appear encoded.

See this helpful chart: http://www.ascii.cl/htmlcodes.htm