URL Request Form
I have this html form to pass my data from iphone to web server.. but I've got stucked how to build this form/data into a mutable request. Can you pls. advise me.
Html form:
<html>
<form method="post" action="https://mysite.com">
<input type="hidden" name="action" value="sale">
<input type="hidden" name="acctid" value="TEST123">
<input type="hidden" name="amount" value="1.00">
<input type="hidden" name="name" value="Joe Customer">
<input type="submit">
</form>
</html>
I don't know how to assign in the url request the "value" to the specific key (ex. action, acctid, amount, name) ???
This is my code:
NSString *urlString = @"https://mysite.com";
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString]];
NSString *p开发者_开发知识库ost = [[NSString alloc] initWithFormat:@"%@%@&%@%@&%@%@&%@%@",
action, sale,
acctid, TEST123,
amount, 1.00,
name, Joe Customer]; // ????
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setValue:postLength forHTTPHeaderField:@"Content-Length"];
[urlRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; // multipart/form-data
[urlRequest setHTTPBody:postData];
Looks about right, although you're missing some equals signs in your format string, and you need to wrap your string arguments up in @"":
NSString *post = [[NSString alloc] initWithFormat:@"%@=%@&%@=%@&%@=%@&%@=%@",
@"action", @"sale",
@"acctid", @"TEST123",
@"amount", @"1.00",
@"name", @"Joe Customer"];
For a more extendable solution you could store your key/value pairs in a dictionary then do something like this:
// Assuming the key/value pairs are in an NSDictionary called payload
NSMutableString *temp = [NSMutableString stringWithString:@""];
NSEnumerator *keyEnumerator = [payload keyEnumerator];
id key;
while (key = [keyEnumerator nextObject]) {
[temp appendString:[NSString stringWithFormat:@"%@=%@&",
[key description],
[[payload objectForKey:key] description]]];
}
NSString *httpBody = [temp stringByTrimmingCharactersInSet:
[NSCharacterSet characterSetWithCharactersInString:@"&"]];
(Bear in mind you may need to URL-encode the keys and values.)
加载中,请稍侯......
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