objective-c 我可以从 iPhone 应用程序发出 POST 或 GET 请求吗？
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Can I make POST or GET requests from an iphone application?
提问by Matt Gallagher
Is there a way using the iPhone SDK to get the same results as an HTTP POST or GET methods?
有没有办法使用 iPhone SDK 获得与 HTTP POST 或 GET 方法相同的结果？
回答by Matt Gallagher
Assume your class has a responseDatainstance variable, then:
假设你的类有一个responseData实例变量，那么：
responseData = [[NSMutableData data] retain];
NSURLRequest *request =
[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.domain.com/path"]];
[[NSURLConnection alloc] initWithRequest:request delegate:self];
And then add the following methods to your class:
然后将以下方法添加到您的类中：
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[responseData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
// Show error
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// Once this method is invoked, "responseData" contains the complete result
}
This will send a GET. By the time the final method is called, responseDatawill contain the entire HTTP response (convert to string with [[NSString alloc] initWithData:encoding:].
这将发送一个 GET。到调用最终方法时，responseData将包含整个 HTTP 响应（使用 [[NSString alloc] initWithData:encoding:] 转换为字符串。
Alternately, for POST, replace the first block of code with:
或者，对于 POST，将第一个代码块替换为：
NSMutableURLRequest *request =
[NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.domain.com/path"]];
[request setHTTPMethod:@"POST"];
NSString *postString = @"Some post string";
[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
回答by Ben Gottlieb
If you're using Objective C, you'll need to use the NSURL, NSURLRequest, and NURLConnection classes. Apple's NSURLRequest doc. HttpRequest is for JavaScript.
如果您使用目标 C，则需要使用 NSURL、NSURLRequest 和 NURLConnection 类。Apple 的 NSURLRequest 文档。HttpRequest 适用于 JavaScript。
