iOS:如何执行HTTP POST请求？
iOS:如何执行HTTP POST请求？
提问于 2011-04-04 18:36:39
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)并返回一个纯文本响应。
回答 3
Stack Overflow用户
发布于 2013-05-15 08:12:26
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。
Stack Overflow用户
发布于 2015-03-25 09:05:11
以下是iOS7+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：
- (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]);
}或者更好的是，使用AFNetworking 2.0+。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。
- (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];
}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)。
Stack Overflow用户
发布于 2017-05-19 20:25:14
以下是使用NSURLSession的iOS 8+的POST HTTP请求的工作原理：
- (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];
}希望这将满足您的以下要求。
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原文链接：
https://stackoverflow.com/questions/5537297
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