The Q3HttpHeader class contains header information for HTTP. 更多...
| 头： | #include <Q3HttpHeader> |
| 继承者： | Q3HttpRequestHeader and Q3HttpResponseHeader |
| Q3HttpHeader () | |
| Q3HttpHeader (const Q3HttpHeader & header ) | |
| Q3HttpHeader (const QString & str ) | |
| virtual | ~Q3HttpHeader () |
| uint | contentLength () const |
| QString | contentType () const |
| bool | hasContentLength () const |
| bool | hasContentType () const |
| bool | hasKey (const QString & key ) const |
| bool | isValid () const |
| QStringList | keys () const |
| virtual int | majorVersion () const = 0 |
| virtual int | minorVersion () const = 0 |
| void | removeValue (const QString & key ) |
| void | setContentLength (int len ) |
| void | setContentType (const QString & type ) |
| void | setValue (const QString & key , const QString & value ) |
| virtual QString | toString () const |
| QString | value (const QString & key ) const |
| Q3HttpHeader & | operator= (const Q3HttpHeader & h ) |
The Q3HttpHeader class contains header information for HTTP.
In most cases you should use the more specialized derivatives of this class, Q3HttpResponseHeader and Q3HttpRequestHeader , rather than directly using Q3HttpHeader .
Q3HttpHeader provides the HTTP header fields. A HTTP header field consists of a name followed by a colon, a single space, and the field value. (See RFC 1945.) Field names are case-insensitive. A typical header field looks like this:
content-type: text/html
In the API the header field name is called the "key" and the content is called the "value". You can get and set a header field's value by using its key with value () 和 setValue ()，如
header.setValue( "content-type", "text/html" ); QString contentType = header.value( "content-type" );
Some fields are so common that getters and setters are provided for them as a convenient alternative to using value () 和 setValue ()，如 contentLength () 和 contentType (), setContentLength () 和 setContentType ().
Each header key has a single value associated with it. If you set the value for a key which already exists the previous value will be discarded.
另请参阅 Q3HttpRequestHeader and Q3HttpResponseHeader .
Constructs an empty HTTP header.
构造副本为 header .
Constructs a HTTP header for str .
This constructor parses the string str for header fields and adds this information. The str should consist of one or more "\r\n" delimited lines; each of these lines should have the format key, colon, space, value.
[虚拟]
Q3HttpHeader::
~Q3HttpHeader
()
析构函数。
Returns the value of the special HTTP header field
content-length
.
另请参阅 setContentLength () 和 hasContentLength ().
Returns the value of the special HTTP header field
content-type
.
另请参阅 setContentType () 和 hasContentType ().
Returns true if the header has an entry for the special HTTP header field
content-length
；否则返回 false。
另请参阅 contentLength () 和 setContentLength ().
Returns true if the header has an entry for the special HTTP header field
content-type
；否则返回 false。
另请参阅 contentType () 和 setContentType ().
Returns true if the HTTP header has an entry with the given key ；否则返回 false。
另请参阅 value (), setValue ()，和 keys ().
Returns true if the HTTP header is valid; otherwise returns false.
A Q3HttpHeader is invalid if it was created by parsing a malformed string.
Returns a list of the keys in the HTTP header.
另请参阅 hasKey ().
[pure virtual]
int
Q3HttpHeader::
majorVersion
() const
Returns the major protocol-version of the HTTP header.
[pure virtual]
int
Q3HttpHeader::
minorVersion
() const
Returns the minor protocol-version of the HTTP header.
Removes the entry with the key key from the HTTP header.
Sets the value of the special HTTP header field
content-length
to
len
.
另请参阅 contentLength () 和 hasContentLength ().
Sets the value of the special HTTP header field
content-type
to
type
.
另请参阅 contentType () 和 hasContentType ().
Sets the value of the entry with the key to value .
If no entry with key exists, a new entry with the given key and value is created. If an entry with the key already exists, its value is discarded and replaced with the given value .
另请参阅 value (), hasKey ()，和 removeValue ().
[虚拟]
QString
Q3HttpHeader::
toString
() const
Returns a string representation of the HTTP header.
The string is suitable for use by the constructor that takes a QString . It consists of lines with the format: key, colon, space, value, "\r\n".
Returns the value for the entry with the given key . If no entry has this key , an empty string is returned.
另请参阅 setValue (), removeValue (), hasKey ()，和 keys ().
赋值 h and returns a reference to this http header.