: , . - .
, , ( , ). " ". , ? , , submit. - , .
- * . -. Request Response ( ). -, ( html ). , : html , ?
httpRequest , : Get Post. Get . url, "?", , . , , , . Name=Value.
. , .
html , , name="someName", value="emptyValue"/defaultValue="defaultValue".
:
input name="login" value="" /
input name="pass" value="" /
: name=value "&".
Get
http://somesite.com/login.html?login=myLoginName&pass=myPassword
Get , Post. , Post - Get . Post , Get + user-agent, cookies, cookie-policy host, content-length, connection-type.
, Post , Post . , - ( - java. ):
...
code:
HttpConnection conn = null;
String url = "http://www.mysite.com/login.jsp";
String agent = "Mozilla/4.0";
String rawData = "userid=joe&password=guessme";
String type = "application/x-www-form-urlencoded";
String encodedData = encode( rawData ); // user-supplied
try {
conn = (HttpConnection) Connector.open( url );
conn.setRequestMethod( HttpConnection.POST );
conn.setRequestProperty( "User-Agent", agent );
conn.setRequestProperty( "Content-Type", type );
conn.setRequestProperty( "Content-Length",
encodedData.length() );
OutputStream os = conn.openOutputStream();
os.write( encodedData.getBytes() );
int rc = conn.getResponseCode();
... // process it
}
catch( IOException e ){
// handle the error here
}
...
()
http://developers.sun.com/mobility/midp/ttips/HTTPPost/
*Web- , HTTP-, .
