我的网络服务器上有一个API，可以为我们的应用提供数据。 POST和GET请求可以与Postman或其他测试一起使用。 GET请求似乎在应用程序中正常工作，但POST请求返回时出现错误（在Xcode 8.2.1上使用iOS 10.2在iPhone 6模拟器上测试）。
Error Domain=NSURLErrorDomain Code=-1012 "(null)"
UserInfo={NSErrorFailingURLStringKey=https://api.mysite.com/api/Device/Login,
NSUnderlyingError=0x6000002487f0 {Error Domain=kCFErrorDomainCFNetwork Code=-1012 "(null)"
UserInfo={_kCFURLErrorAuthFailedResponseKey=<CFURLResponse 0x6000000fde00 [0x108d59df0]>
{url = https://api.mysite.com/api/Device/Login}}},
NSErrorFailingURLKey=https://api.mysite.com/api/Device/Login}
domain: @"NSURLErrorDomain" - code: 18446744073709550604
以下是创建POST请求的大部分功能：
-(NSString*)login:(NSString*)username password:(NSString*)password
{
NSString *deviceID = [[[UIDevice currentDevice] identifierForVendor] UUIDString];
NSString *deviceModel = [[UIDevice currentDevice] model];
NSString *deviceOS = [[UIDevice currentDevice] systemVersion];
NSString *deviceOSName = [[UIDevice currentDevice] systemName];
NSString *pushEnabled = @"False";
NSArray *userDictObjects = [NSArray arrayWithObjects:username, password, nil];
NSArray *userDictKeys = [NSArray arrayWithObjects:@"Username", @"Password", nil];
NSDictionary *userDict = [NSDictionary dictionaryWithObjects:userDictObjects forKeys:userDictKeys];
NSArray *deviceDictObjects = [NSArray arrayWithObjects:
deviceID,
deviceOSName,
deviceOS,
@"Apple",
deviceModel,
pushEnabled,
@"pushID", nil];
NSArray *deviceDictKeys = [NSArray arrayWithObjects:
@"DeviceID",
@"OS",
@"OSVersion",
@"Manufacturer",
@"Model",
@"PushEnabled",
@"PushID", nil];
NSDictionary *deviceDict = [NSDictionary dictionaryWithObjects:deviceDictObjects forKeys:deviceDictKeys];
NSArray *sectionsArrayObjects = [NSArray arrayWithObjects:userDict, deviceDict, nil];
NSArray *sectionsArrayKeys = [NSArray arrayWithObjects:@"User", @"Device", nil];
NSDictionary *sectionsDict = [NSDictionary dictionaryWithObjects:sectionsArrayObjects forKeys:sectionsArrayKeys];
NSLog(@"Json > %@", sectionsDict);
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:sectionsDict options:0 error:nil];
NSString *conURL = [NSString stringWithFormat:@"%@/api/Device/Login", apiURL];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:conURL]];
[request setHTTPMethod:@"POST"];
[request addValue:@"application/json" forHTTPHeaderField:(@"content-type")];
[request addValue:@"application/json" forHTTPHeaderField:(@"accept")];
[request setHTTPBody:jsonData]; // This jsonData is populated elsewhere from a dictionary with [NSJSONSerialization dataWithJSONObject:sectionsDict options:0 error:nil];
NSURLResponse *response = nil;
NSError *error = nil;
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *authenticated = @"No";
if (error == nil) {
if (response) {
NSHTTPURLResponse *newResp = (NSHTTPURLResponse*)response;
NSLog(@"Authenticate - login - Response code - %li", (long)newResp.statusCode);
if (data.length > 0 && error == nil) {
NSLog(@"Authenticate - login - Data length - %li", (long)data.length);
authenticated = @"Yes";
} else {
NSLog(@"Authenticate - login - Data length - %li", (long)data.length);
NSLog(@"Authenticate - login - Error - %@", error);
}
} else {
NSLog(@"Authenticate - login - No response - %@", response);
}
} else {
NSLog(@"Authenticate - login - login error - %li", (long)error.code); // app currently gets here
if (error.code != -1012) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"There was a problem!"
message:@"The app is unable to login, the request timed out. Please make sure there is an Internet connection and try again."
delegate:self
cancelButtonTitle:@"Ok"
otherButtonTitles:nil];
[alert setTag:2];
[alert show];
} else {
NSLog(@"Authenticate - login - login error code - %li ", (long)error.code); // app currently gets here
}
}
我已尝试过HTTP和HTTPS，这没什么区别。我究竟做错了什么？如何在正文中成功发送包含JSON的POST请求？
更新
我创建了一个非常简单的测试方法来发送POST请求，这很好。我觉得问题与包装我需要发送的JSON以及服务器如何接收它有关。
工作测试：
NSString *string= [NSString stringWithFormat:@"http://api.mysite.com/api/Test/LoginSimplePost?username=%@&password=%@&portalid=%i",username,password,portalid];
NSLog(@"%@",string);
NSURL *url = [NSURL URLWithString:string];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"POST"];
NSURLResponse *response;
NSError *err;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSLog(@"responseData: %@", responseData);
NSString *str = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(@"responseData: %@", str);
答案 0 :(得分：0)
以下作品对我来说可能会对你有所帮助。
- (void)UpdateUser:(NSDictionary *)userdetails {
NSURL *url = [NSURL URLWithString:@"SOME URL"];
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:url];
request.HTTPMethod = @"POST";
[request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request addValue:@"application/json" forHTTPHeaderField:@"Accept"];
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:userdetails options:NSJSONWritingPrettyPrinted error:nil]; //don't set error to nil, handle the error
[request setHTTPBody:jsonData];
NSURLConnection *connection = [NSURLConnection connectionWithRequest:request delegate:self];
[connection start];
}
或其他情况
这是 kCFURLErrorUserCancelledAuthentication 错误，-10xx错误属于CFNetworkErrors枚举。这个常数的名称非常简单。服务器因某种原因取消了身份验证