The java.net.URLDecoder class has a static method to perform this decoding. The following code fragment resides in the doGet() or doPost() method of a servlet. The variable request is a javax.servlet.http.HttpServletRequest object:

   String encodedData = request.getQueryString()  String decodedData = java.net.URLDecoder.decode (encodedData)

The decode(String)method does the following:

1. The plus sign ‘+’ is converted into a space character: ‘