Objective c 从响应中获取参数值

Question

我的回复：

data = {
"user_id" = "1";
username = "dame";
},
messsage = "success";
response = 1;

我的代码：

     NSDictionary *dict = [[NSDictionary alloc]initWithDictionary:responseobject];
        NSDictionary *data = [[NSDictionary alloc]initWithDictionary:dict];

        int success = [[NSString stringWithFormat:@"%@",dict [@"response"]]intValue];
        NSString*userid = [NSString stringWithFormat:@"%@",data [@"user_id"]];

 NSLog(@"%@", userid);

我的用户 ID 为空。我不知道 issue.please 帮了我什么。

Answer 1

您错过了父密钥

NSString*userid = [NSString stringWithFormat:@"%@",data ["data"] [@"user_id"]];

Answer 2

试试这个：

NSString*userid = [NSString stringWithFormat:@"%@",[[data valueForKey:@"data"] valueForKey:@"user_id"]];
NSLog(@"%@", userid);

Answer 3

试试这个

NSString *userid = [data valueForKeyPath:@"data.user_id"];

Answer 4

你的数据字典有完整的 responseObject 因为你没有传递 dict["data"]，更改那行以获取 userId

NSDictionary *dict = [[NSDictionary alloc]initWithDictionary:responseobject];

要获取数据，您必须添加数据键

NSDictionary *data = [[NSDictionary alloc]initWithDictionary:dict["data"]]; 
int success = [[NSString stringWithFormat:@"%@",dict [@"response"]]intValue];
NSLog(@"%d", success);
NSString*userid = [NSString stringWithFormat:@"%@",data [@"user_id"]];
NSLog(@"%@", userid);

Objective c 从响应中获取参数值

Objective c get parameter values from reposnse

response

objective-c

ios