JSP built-in object (2)

The previous chapter focuses on the concept of built-in objects in jsp (the preferred choice for SUN enterprise-level applications). This article mainly describes some built-in object methods.

 1,RequestObject methods:

☉GetAttribute (String name)ReturnNameAttribute Value.

☉GetAttributeNames ()ReturnRequestAll property names of the object.

☉GetCookies ()ReturnsCookiesObject.

☉GetHeader (String name)ObtainHTTPThe file header defined by the Protocol.

☉GetHeaders (String name)ReturnsRequest HeaderAll values.

☉GetMethod ()Obtain the method by which the client transmits data to the server.

☉GetParameter (String name)Obtain the parameter value sent from the client to the server.

☉GetParameterNames ()Obtain the names of all parameters sent from the client to the server.

☉GetParameterValue (String name)Obtains all values of a specified parameter.

☉GetProtocol ()Obtain the protocol name that the client uses to transmit data to the server.

☉GetQueryString ()Obtain the query string.

☉GetRequestURI ()Obtain the client address of the request string.

☉GetRemoteAddr ()ObtainIPAddress.

☉GetRemoteHost ()Obtain the client name.

☉GetServerName ()Obtain the name of the server.

☉GetServletPath ()