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 of all properties of the request object, resulting in an instance of an enumeration
GetCookies (): Returns all cookie objects for the client, as a result of a cookie array
Getcharacterencoding (): Returns the character encoding in the request
Getcontentlength (): Returns the length of the requested body
GetHeader (String name): Gets the file header information defined by the HTTP protocol
Getheaders (String name): Returns all values of the request header for the specified name, resulting in an instance of an enumeration
Getheadernames (): Returns the name of the request header, and the result is an instance of the enumeration
getInputStream (): Returns the requested input stream for obtaining the data in the request
GetMethod (): Obtaining a client's way of transmitting data to the server side
GetParameter (String name): Gets the parameter value specified by the client that is passed to the server side by name
Getparameternames (): Gets the name of all parameters that the client sends to the server side, and the result is an instance of the enumeration
Getparametervalues (String name): Gets all values that have the parameter specified by name
Getprotocol (): Gets the protocol name on which the client transmits data to the server
GetQueryString (): Get query string
Getrequesturi (): Gets the client address that issued the request string
GETREMOTEADDR (): Gets the IP address of the client
Getremotehost (): Gets the name of the client
GetSession ([Boolean create]): Returns and requests the relevant session
getServerName (): Gets the name of the server
Getservletpath (): Gets the path of the script file requested by the client
Getserverport (): Gets the port number of the server
RemoveAttribute (String name): Delete One of the properties in the request
The main method of the request object and its role
