objective-c

Question

我想在我的应用程序中发出 POST 请求。我使用以下代码：

NSString *post = [NSString stringWithFormat:@"Email=%@&Password=%@",self.emailTxt.text,self.pwTxt.text];

NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];

[request setURL:[NSURL URLWithString:kEmailLogin]];

[request setHTTPMethod:@"POST"];

[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];

[request setHTTPBody:postData];

NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *responseCode = nil;

NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&responseCode error:&error];

当我运行使用带有 iOS 9 设备的模拟器时，它可以完美运行。但是在我的 iPad 和 iOS X 中，每次我执行请求时它都会崩溃。

我应该如何执行 POST 请求以使其在 iOS X 设备上工作？

kEmailLogin 是具有 HTTPS url 的变量，用于 returns 和 JSON.

的服务

Answer 1

我已经使用 NSURLSession 解决了这个问题。

NSString *post = [NSString stringWithFormat:@"Email=%@&Password=%@",self.emailTxt.text,self.pwTxt.text];

NSURLSessionConfiguration *sessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];

NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfiguration delegate: nil delegateQueue: [NSOperationQueue mainQueue]];
NSURL *url = [NSURL URLWithString:kEmailLogin];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    request.HTTPBody = [post dataUsingEncoding:NSUTF8StringEncoding];
    request.HTTPMethod = @"POST";

NSURLSessionDataTask *postDataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

  NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;  
}];
[postDataTask resume];

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post

nsurlconnection

ios