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: ‘