使用afnetworking，请求参数json＝{}

首先需要导入jsonkit第三方包

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager
manager];

NSDictionary *parameter = [NSDictionary dictionaryWithObjectsAndKeys:@"13817676763",@"UPHONE",@"123",@"UFPWD",@"0000",@"AUTHCODE",nil];

NSDictionary *parameters = [NSDictionary dictionaryWithObjectsAndKeys:[parameter JSONString],@"json",nil];

//    NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:[NSNumber numberWithInt:1],@"pagecount",[NSNumber numberWithInt:10],@"pagesize",[NSNumber numberWithInt:100],@"sumcount", nil];

//    NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:parameter,@"json", nil];

[manager POST:@"http://121.42.40.105:8888/register.ashx" parameters:parameters
success:^(AFHTTPRequestOperation *operation,
id responseObject) {

NSLog(@"JSON====: %@", responseObject);

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

NSLog(@"Error====: %@", error.description);

NSLog(@"返回值:",operation.responseString);

}];