Return the value of the provided header, or null if the header does not exist
Return the date value of the provided header, or the provided default-value if the header does not exist
Return the integer value of the provided header, or the provided default-value if the header does not exist
Output the param list to the provided consumer
Return the number of headers
Maintains a set of query parameters, parsed from an HTTP request. Use HttpParams instead for output parameters.
Note that these input params may have been encoded by the user- agent. Unfortunately there has been little consensus on what that encoding should be (especially regarding GET query-params). With luck, that will change to a consistent usage of UTF-8 within the near future.