blocks|key|728071|text|我想我应该稍微更新一下这篇文章，并说在ASIHTTPRequest被抛弃后，很多iOS社区已经转移到了AFNetworking。我强烈推荐它。它是一个围绕NSURLConnection的很好的包装器，允许异步调用，基本上是您可能需要的任何东西。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|728072|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/AFNetworking/AFNetworking^0|J|E|25|F|1F|C|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

I thought I would update this post a bit and say that alot of the iOS community has moved over to <a href="https://github.com/AFNetworking/AFNetworking" rel="noreferrer">AFNetworking</a> after <code>ASIHTTPRequest</code> was abandoned. I highly recommend it. It's a great wrapper around <code>NSURLConnection</code> and allows for asynchronous calls, and basically anything you might need.

blocks|key|728132|text|以下是iOS7%2B的更新答案。它使用的是NSURLSession，一种新的热点。免责声明，这是未经测试的，并在文本字段中编写：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|728133|-+(void)post+{
++++NSURLSession+*session+=+[NSURLSession+sessionWithConfiguration:[NSURLSessionConfiguration+defaultSessionConfiguration]+delegate:self+delegateQueue:nil];
++++NSMutableURLRequest+*request+=+[NSMutableURLRequest+requestWithURL:[NSURL+URLWithString:@"https://example.com/dontposthere"]+cachePolicy:NSURLRequestUseProtocolCachePolicy+timeoutInterval:60.0];
++++//+Uncomment+the+following+two+lines+if+you're+using+JSON+like+I+imagine+many+people+are+(the+person+who+is+asking+specified+plain+text)
++++//+[request+addValue:@"application/json"+forHTTPHeaderField:@"Content-Type"];
++++//+[request+addValue:@"application/json"+forHTTPHeaderField:@"Accept"];+
++++[request+setHTTPMethod:@"POST"];
++++NSURLSessionDataTask+*postDataTask+=+[session+dataTaskWithRequest:request+completionHandler:%5E(NSData+*data,+NSURLResponse+*response,+NSError+*error)+{
++++++++NSString+*responseString+=+[[NSString+alloc]+initWithData:data+encoding:NSUTF8StringEncoding];
++++}];
++++[postDataTask+resume];
}

-(void)URLSession:(NSURLSession+*)session+didReceiveChallenge:(NSURLAuthenticationChallenge+*)challenge+completionHandler:(void+(%5E)(++++NSURLSessionAuthChallengeDisposition+disposition,+NSURLCredential+*credential))completionHandler+{
++++completionHandler(NSURLSessionAuthChallengeUseCredential,+[NSURLCredential+credentialForTrust:challenge.protectionSpace.serverTrust]);
}|code-block|syntax|javascript|728134|或者更好的是，使用AFNetworking+2.0%2B。通常我会将AFHTTPSessionManager子类，但我将所有这些都放在一个方法中，以便有一个简洁的示例。|728135|-+(void)post+{
++++AFHTTPSessionManager+*manager+=+[[AFHTTPSessionManager+alloc]+initWithBaseURL:[NSURL+URLWithString:@"https://example.com"]];
++++//+Many+people+will+probably+want+[AFJSONRequestSerializer+serializer];
++++manager.requestSerializer+=+[AFHTTPRequestSerializer+serializer];
++++//+Many+people+will+probably+want+[AFJSONResponseSerializer+serializer];
++++manager.responseSerializer+=+[AFHTTPRequestSerializer+serializer];
++++manager.securityPolicy.allowInvalidCertificates+=+NO;+//+Some+servers+require+this+to+be+YES,+but+default+is+NO.
++++[manager.requestSerializer+setAuthorizationHeaderFieldWithUsername:@"username"+password:@"password"];
++++[[manager+POST:@"dontposthere"+parameters:nil+success:%5E(NSURLSessionDataTask+*task,+id+responseObject)+{
++++++++NSString+*responseString+=+[[NSString+alloc]+initWithData:responseObject+encoding:NSUTF8StringEncoding];
++++}+failure:%5E(NSURLSessionDataTask+*task,+NSError+*error)+{
++++++++NSLog(@"darn+it");
++++}]+resume];
}|728136|如果您正在使用JSON响应序列化程序，那么responseObject将是来自JSON响应的对象(通常是NSDictionary或NSArray)。|728137|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Here is an updated answer for iOS7+. It uses NSURLSession, the new hotness. Disclaimer, this is untested and was written in a text field:

<pre><code>- (void)post {
 NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:nil];
 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://example.com/dontposthere"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
 // Uncomment the following two lines if you're using JSON like I imagine many people are (the person who is asking specified plain text)
 // [request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
 // [request addValue:@"application/json" forHTTPHeaderField:@"Accept"]; 
 [request setHTTPMethod:@"POST"];
 NSURLSessionDataTask *postDataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
 NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
 }];
 [postDataTask resume];
}

-(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)( NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *credential))completionHandler {
 completionHandler(NSURLSessionAuthChallengeUseCredential, [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust]);
}
</code></pre>

Or better yet, use AFNetworking 2.0+. Usually I would subclass AFHTTPSessionManager, but I'm putting this all in one method to have a concise example.

<pre><code>- (void)post {
 AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:[NSURL URLWithString:@"https://example.com"]];
 // Many people will probably want [AFJSONRequestSerializer serializer];
 manager.requestSerializer = [AFHTTPRequestSerializer serializer];
 // Many people will probably want [AFJSONResponseSerializer serializer];
 manager.responseSerializer = [AFHTTPRequestSerializer serializer];
 manager.securityPolicy.allowInvalidCertificates = NO; // Some servers require this to be YES, but default is NO.
 [manager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"username" password:@"password"];
 [[manager POST:@"dontposthere" parameters:nil success:^(NSURLSessionDataTask *task, id responseObject) {
 NSString *responseString = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
 } failure:^(NSURLSessionDataTask *task, NSError *error) {
 NSLog(@"darn it");
 }] resume];
}
</code></pre>

If you are using the JSON response serializer, the responseObject will be object from the JSON response (often NSDictionary or NSArray).

blocks|key|944265|text|以下是使用NSURLSession的iOS+8%2B的POST+HTTP请求的工作原理：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|944266|-+(void)call_PostNetworkingAPI:(NSURL+*)url+withCompletionBlock:(void(%5E)(id+object,NSError+*error,NSURLResponse+*response))completion
{
++++NSURLSessionConfiguration+*config+=+[NSURLSessionConfiguration+defaultSessionConfiguration];
++++config.requestCachePolicy+=+NSURLRequestReloadIgnoringLocalCacheData;
++++config.URLCache+=+nil;
++++config.timeoutIntervalForRequest+=+5.0f;
++++config.timeoutIntervalForResource+=10.0f;
++++NSURLSession+*session+=+[NSURLSession+sessionWithConfiguration:config+delegate:nil+delegateQueue:nil];
++++NSMutableURLRequest+*Req=[NSMutableURLRequest+requestWithURL:url];
++++[Req+setHTTPMethod:@"POST"];

++++NSURLSessionDataTask+*task+=+[session+dataTaskWithRequest:Req+completionHandler:%5E(NSData+*+_Nullable+data,+NSURLResponse+*+_Nullable+response,+NSError+*+_Nullable+error)+{
++++++++if+(error+==+nil)+{

++++++++++++NSDictionary+*dict+=+[NSJSONSerialization+JSONObjectWithData:data+options:NSJSONReadingAllowFragments+error:nil];
++++++++++++if+(dict+!=+nil)+{
++++++++++++++++completion(dict,error,response);
++++++++++++}
++++++++}else
++++++++{
++++++++++++completion(nil,error,response);
++++++++}
++++}];
++++[task+resume];

}|code-block|syntax|javascript|944267|希望这将满足您的以下要求。|944268|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here is how POST HTTP request works for iOS 8+ using NSURLSession:

<pre><code>- (void)call_PostNetworkingAPI:(NSURL *)url withCompletionBlock:(void(^)(id object,NSError *error,NSURLResponse *response))completion
{
 NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];
 config.requestCachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
 config.URLCache = nil;
 config.timeoutIntervalForRequest = 5.0f;
 config.timeoutIntervalForResource =10.0f;
 NSURLSession *session = [NSURLSession sessionWithConfiguration:config delegate:nil delegateQueue:nil];
 NSMutableURLRequest *Req=[NSMutableURLRequest requestWithURL:url];
 [Req setHTTPMethod:@"POST"];

 NSURLSessionDataTask *task = [session dataTaskWithRequest:Req completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
 if (error == nil) {

 NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];
 if (dict != nil) {
 completion(dict,error,response);
 }
 }else
 {
 completion(nil,error,response);
 }
 }];
 [task resume];

}
</code></pre>

Hope this will satisfy your following requirement.

I'm approaching iOS development and I'd like to have one of my first applications to perform a HTTP POST request.

As far as I can understand, I should manage the connection which handles the request via a <code>NSURLConnection</code> object, which forces me to have a delegate object, which in turn will handle data events.

Could someone please clarify the task with a practical example?

I should contact an https endpoint sending authentication data (username and password) and getting back a plain text response.

iOS: how to perform a HTTP POST request?

身份验证

JSON

我正在进行iOS开发，我想让我的第一批应用程序之一执行HTTP POST请求。据我所知，我应该通过NSURLConnection对象管理处理请求的连接，这迫使我有一个委托对象，而委托对象又将处理数据事件。有没有人可以用一个实际的例子来说明这项任务？我应该联系一个https端点，发送身份验证数据(用户名和密码)并返回一个...

问iOS:如何执行HTTP POST请求？
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