SetAttribute (String name,object): Sets the parameter value of the request named name
GetAttribute (String name): Returns the property value specified by name
Getattributenames (): Returns a collection of names for all properties of the request object, with the result being an instance of an enumeration
GetCookies (): Returns all cookie objects for the client, resulting in an array of cookies
Getcharacterencoding (): Returns the character encoding method in the request
Getcontentlength (): Returns the length of the requested body
GetHeader (String name): Get file header information for HTTP protocol definitions
Getheaders (String name): Returns all values for the request header of the specified name, with the result being an instance of an enumeration
Getheadernames (): Returns the name of the request header, and the result is an enumerated instance
getInputStream (): Returns the requested input stream, which is used to obtain the data in the request
GetMethod (): Get client to server-side data transfer method
GetParameter (String name): Gets the parameter value specified by the client to the server side with name
Getparameternames (): Gets the name of all the parameters that the client sends to the server side, and the result is an enumerated instance
Getparametervalues (String name): Gets all values that have the parameters specified by name
Getprotocol (): Gets the protocol name on which the client transmits data to the server side
GetQueryString (): Get query string
Getrequesturi (): Gets the client address that issued the request string
GETREMOTEADDR (): Get the IP address of the client
Getremotehost (): Get the name of the client
GetSession ([Boolean create]): Return and request related session
getServerName (): Get the name of the server
Getservletpath (): Gets the path to the script file requested by the client
Getserverporti (): Gets the port number of the server
RemoveAttribute (String name): Delete a property in the request