Documents transmitted with HTTP that are of type text, such as text/html, text/plain, etc., can send a charset parameter in the HTTP header to specify the character encoding of the document. It is very important to always label Web documents explicitly. May 11, 2013 · There are two ways to generate output using Spring MVC: In either case you’ll need to deal with multiple representations (or views) of the same data returned by the controller. Working out which data format to return is called Content Negotiation. There are three situations where we need to know ... C++ Template Classes and Friend Function Details Introduction. When writing C++, there are a couple common situations where you may want to create a friend function, such as implementing operator<<. These are straightforward to write for non-template classes, but templates throw a real wrench in the works here. 彩虹岛-中韩双资料篇！ Db2 supports both IBM®-supplied data types (built-in data types) and user-defined data types (distinct types). The smallest unit of data that can be manipulated in SQL is called a value. How values are interpreted depends on the data type of their source. The Content-Type field for multipart entities requires one parameter, "boundary", which is used to specify the encapsulation boundary. The encapsulation boundary is defined as a line consisting entirely of two hyphen characters ("-", decimal code 45) followed by the boundary parameter value from the Content-Type header field.