fail:Error Domain=NSURLErrorDomain Code=-1012 "(null)" UserInfo={NSErrorFailingURLKey=https://url...

错误：

fail:Error Domain=NSURLErrorDomain Code=-1012 "(null)" UserInfo={NSErrorFailingURLKey=https://url, NSErrorFailingURLStringKey=https://url}

原因HTTPS请求引起的，没有配置安全证书。

解决方法：

  AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
  manager.requestSerializer = [AFJSONRequestSerializer serializer];
  [manager.requestSerializer setValue:@"*/*" forHTTPHeaderField:@"Accept"];
  [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
  manager.responseSerializer = [AFHTTPResponseSerializer serializer];
  AFSecurityPolicy *policy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];
  //是否允许CA不信任的证书通过
  policy.allowInvalidCertificates = YES;
  //是否验证主机名
  policy.validatesDomainName = NO;
  manager.securityPolicy = policy;