nsdictionary获取值,从NSDictionary获取值

最新推荐文章于 2023-05-14 16:33:48 发布

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最新推荐文章于 2023-05-14 16:33:48 发布

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文章标签： nsdictionary获取值

这篇博客讨论了在iOS开发中遇到的问题，即如何从JSON字符串中提取数据。作者分享了他们收到的JSON响应，该响应包含一个字典数组。他们尝试通过键值对获取数据，但遇到了反斜杠转义的问题。解决方案是使用NSJSONSerialization将字符串转换为NSArray，然后遍历数组以访问每个字典中的值。

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Hi I'm new to iOS development. I want to get response and add those values to variable.

I tried it but I'm getting below response. I don't understand why there is slashes in this response.

@"[{\"VisitorID\":\"2864983a-e26b-441a-aedf-84e2a1770b8e\",\"ProfileID\":\"69c02265-abca-4716-8a2f-ac5d642f876a\",\"CompanyID\":null,\"VisitorName\":\"kanasalingam\",\"OperatorName\":\"baman\",\"Image\":null,\"isocode\":\"lk\",\"CurrentOperator\":[\"69c02265-abca-4716-8a2f-ac5d642f876a\"]},{\"VisitorID\":\"133bc108-b3bf-468a-9397-e1b0dba449db\",\"ProfileID\":\"69c02265-abca-4716-8a2f-ac5d642f876a\",\"CompanyID\":null,\"VisitorName\":\"kumar\",\"OperatorName\":\"baman\",\"Image\":null,\"isocode\":\"lk\",\"CurrentOperator\":[\"69c02265-abca-4716-8a2f-ac5d642f876a\"]}]"

I tried this :

- (void) sendOtherActiveChats:(NSDictionary *) chatDetails{

NSLog(@"inside sendOtherActiveChats");

NSLog(@"otherDetails Dictionary : %@ ", chatDetails);

NSString *VisitorID = [chatDetails objectForKey:@"VisitorID"];

NSString *ProfileID = [chatDetails objectForKey:@"ProfileID"];

NSString *CompanyID = [chatDetails objectForKey:@"CompanyID"];

NSString *VisitorName = [chatDetails objectForKey:@"VisitorName"];

NSString *OperatorName = [chatDetails objectForKey:@"OperatorName"];

NSString *isocode = [chatDetails objectForKey:@"isocode"];

NSLog(@"------------------------Other Active Chats -----------------------------------");

NSLog(@"VisitorID : %@" , VisitorID);

NSLog(@"ProfileID : %@" , ProfileID);

NSLog(@"CompanyID : %@" , CompanyID);

NSLog(@"VisitorName : %@" , VisitorName);

NSLog(@"OperatorName : %@" , OperatorName);

NSLog(@"countryCode: %@" , isocode);

NSLog(@"------------------------------------------------------------------------------");

}

Can some one help me to get the values out of this string ?

解决方案

You are getting Array of Dictionary in response, but your response is in string so you convert it to NSArray using NSJSONSerialization like this way for that convert your response string to NSData and after that use that data with JSONObjectWithData: to get array from it.

NSString *jsonString = @"[{\"VisitorID\":\"2864983a-e26b-441a-aedf-84e2a1770b8e\",\"ProfileID\":\"69c02265-abca-4716-8a2f-ac5d642f876a\",\"CompanyID\":null,\"VisitorName\":\"kanasalingam\",\"OperatorName\":\"baman\",\"Image\":null,\"isocode\":\"lk\",\"CurrentOperator\":[\"69c02265-abca-4716-8a2f-ac5d642f876a\"]},{\"VisitorID\":\"133bc108-b3bf-468a-9397-e1b0dba449db\",\"ProfileID\":\"69c02265-abca-4716-8a2f-ac5d642f876a\",\"CompanyID\":null,\"VisitorName\":\"kumar\",\"OperatorName\":\"baman\",\"Image\":null,\"isocode\":\"lk\",\"CurrentOperator\":[\"69c02265-abca-4716-8a2f-ac5d642f876a\"]}]";

NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];

NSError *e;

NSMutableArray *jsonArray = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&e];

Now loop through the array and access the each dictionary from it.

for (NSDictionary *dic in jsonArray) {

NSLog(@"%@",[dic objectForKey:@"VisitorID"]);

... and so on.

}