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我是 iPhone 新手。我正在从服务器接收一些数据，那么如何在 JSON 中解析这些数据。这里我想要解析JSON后所有人的名字。下面怎么可能是我从服务器接收数据？

{   "data":
    [{      "name":"Ashresh Devisetti","id":"1018103475"
    },{     "name":"Atluri Suhas","id":"1033093758"
    },{     "name":"Tejaswi Kumar","id":"1119007960"
    },{     "name":"Vineel MSatian","id":"1126218004"
    },{     "name":"Somesh Nookala","id":"1135608183"
    },{     "name":"Sriram Poduri","id":"1153984821"
    },{     "name":"Somesh Nookala","id":"1279615172"
    },{     "name":"Ravi Kanth","id":"1392429155"
    },{     "name":"Manikanta Swaroop","id":"1625515823"
    },{     "name":"Amulya Marivada","id":"1704204546"
    },{     "name":"Naresh Kumar Geddam","id":"1739192069"
    },{     "name":"Chaitanya Chaitu","id":"1749870844"
    },{     "name":"Cheruku Swamy","id":"1791647314"
    },{     "name":"Ramya Naidu","id":"1848155470"
    },{     "name":"Sri Divya Chenna","id":"100000032711858"
    },{     "name":"Sandeepkumar Katakam","id":"100000045911895"
    },{     "name":"Rupendra Kumar M","id":"100000050422004"
    },{     "name":"Sruthi Gollapudi","id":"100000055991847"
    },{     "name":"Ramanamurthy Saripalli","id":"100000073436389"
    },{     "name":"Ravi Teja","id":"100000085284134"
    },{     "name":"Sasank Pisipati","id":"100000183890281"
    },{     "name":"Sneha Yadla","id":"100000266481511"
    },{     "name":"Teja Bhupatiraju","id":"100000267197072"
    },{     "name":"Anisha Kosuri","id":"100000389025595"
    },{     "name":"Arun Kumar","id":"100000389565527"
    },{     "name":"Rohini Krishna","id":"100000545110674"
    },{     "name":"Lalitha Satyavolu","id":"100000545503024"
    },{     "name":"Ralli Raghu","id":"100000548726955"
    },{     "name":"Mansoor Sha","id":"100000560237166"
    },{     "name":"Tarun Medisetti","id":"100000612310803"
    },{     "name":"Anand Sathivada","id":"100000636872860"
    },{     "name":"Siva Prasad Rayapudi","id":"100000684818891"
    },{     "name":"Surekha Koruprolu","id":"100000704491702"
    },{     "name":"Sam Ernesto","id":"100000722715489"
    },{     "name":"Kalyan Kuchipudi","id":"100000764050697"
    },{     "name":"Sai Sandeep","id":"100000775011879"
    },{     "name":"Uma Kethavarapu","id":"100000777379251"
    },{     "name":"Lokesh Varma","id":"100000862073560"
    },{     "name":"Anusha Prakash","id":"100000916534219"
    },{     "name":"Tendu Chandu","id":"100001021718095"
    },{     "name":"Surendra Varma","id":"100001030129883"
    },{     "name":"Shiv Charan Yedavalli","id":"100001104018801"
    },{     "name":"Surya Sri Avinash","id":"100001261348651"
    },{     "name":"Sandeep Choppala","id":"100001381957897"
    },{     "name":"Sandeep Vaitla","id":"100001440817792"
    },{     "name":"Aadi Narayana","id":"100001453941516"
    },{     "name":"Brahmani Achanta","id":"100001526798068"
    },{     "name":"Prasad Pothala","id":"100001531038570"
    },{     "name":"Harsha Vardhan G","id":"100001547227974"
    },{     "name":"Satish Chowdary","id":"100001553950656"
    },{     "name":"Pramod Dsrb","id":"100001579793628"
    },{     "name":"Sree Ram","id":"100001582161546"
    },{     "name":"Ratnadeepthi Allakki","id":"100001607126997"
    },{     "name":"Bobba Satish Kumar","id":"100001623868422"
    },{     "name":"Sudheera Indugula","id":"100001628983788"
    },{     "name":"Phani Allada","id":"100001665690488"
    },{     "name":"Naveen Kumar","id":"100001695204621"
    },{     "name":"Akula Sundar Kumar","id":"100001722776059"
    },{     "name":"Karthik Varma Pakalapati","id":"100001754077975"
    },{     "name":"Sriram Valluri","id":"100001766246694"
    },{     "name":"Ramya Sindhuri","id":"100001839785670"
    },{     "name":"Rajendra Rudra","id":"100001877367454"
    },{     "name":"Anusha Kola","id":"100001927730228"
    },{     "name":"Gowtham Raj Chilakapati","id":"100001968713154"
    },{     "name":"Prasad Durga","id":"100002082589163"
    },{     "name":"Padmini Sudheera Tatiraju","id":"100002101582586"
    },{     "name":"Murali Nadh","id":"100002150494601"
    },{     "name":"Harish Harshu","id":"100002153956398"
    },{     "name":"Naveen Kumar","id":"100002223484093"
    },{     "name":"Satish Kumar","id":"100002241855098"
    },{     "name":"Siva Kumar","id":"100002316574080"
    },{     "name":"Harish Kalidindi","id":"100002350209493"
    },{     "name":"Ram Babu Yadamareddy","id":"100002350852565"
    },{     "name":"Aruna Sree","id":"100002394713943"
    },{     "name":"Siva Prasad","id":"100002396785204"
    },{     "name":"Navya Prasanna","id":"100002419100201"
    },{     "name":"Ramireddy Paila","id":"100002552254549"
    },{     "name":"John Edward","id":"100002595557538"
    },{     "name":"Abhishek Namma","id":"100002641337357"
    },{     "name":"Tirumala Rayudu Tandra","id":"100002673802695"
    },{     "name":"Lakshmiviveka Goli","id":"100002820242067"
    },{     "name":"Durgarao Vasamsetti","id":"100002947094683"
    },{     "name":"Geda Sudheer","id":"100002968743878"
    },{     "name":"Krishna Prasad Pasupuleti","id":"100003027388345"
    },{     "name":"Sudheer Palatherthapu","id":"100003095500995"
    },{     "name":"Raja Ramesh Haddubangi","id":"100003098069539"
    },{     "name":"Rupa Kamireddy","id":"100003137137936"
    },{     "name":"Krishnarao Paruchuri","id":"100003337821817"
    },{     "name":"Teja Varma","id":"100003786723963"
    },{     "name":"Madhuri Jasti","id":"100003926095705"
    }],"paging":{       "next":"https:\/\/graph.facebook.com\/100003137741947\/friends?value=1&redirect=1&access_token=AAAB3DjBNjrEBACF2foZBM6qModwfmyOP24zMBK6skwxN31aA3oLxTCuu2KI9CgnvAJu4yUxDFK9KyKnrErrv2q5zee4U5VcSbyoeDTAZDZD&limit=5000&offset=5000&__after_id=100003926095705"
    }
}
4

5 回答 5

1 
-(void)getData:(NSData*)response{

 // You have to include the SBJSON or else you can also use the NSJSONSerialization

 //NSDictionary *jsonData          =           [NSJSONSerialization JSONObjectWithData:response options:kNilOptions error:&erro];

SBJSON *parse                               =           [[SBJSON alloc]init];

NSString *jsonString                        =           [[NSString alloc] initWithData:response
                                                                            encoding:NSUTF8StringEncoding]; 

NSDictionary *jsonData                      =           [parse objectWithString:jsonString error:&erro];

NSArray *alldata                          =           [jsonData objectForKey:@"data"];

if(![alldata isKindOfClass:[NSNull class]] && [alldata count] > 0)
{
    for(int i = 0; i < [alldata count]; i++)
    {
        NSDictionary *getData               =       [allEvents objectAtIndex:i];

        NSString *nameString                   =       [NSString stringWithFormat:@"%@",[getData objectForKey:@"name"]];

         NSString *idString                   =       [NSString stringWithFormat:@"%@",[getData objectForKey:@"id"]];

    }

}

}
于 2012-07-17T13:09:28.207 回答
0

您需要为 Objective-C 使用 JSON 解析库。我会推荐JSON 框架。（现在叫SBJson）它被广泛使用。我们已经在几个成功的项目中使用它并且完全没有问题。

于 2012-07-17T13:04:54.417 回答
0

我是JSONKit的忠实粉丝。它的实现要小得多（只是一个 .h 和 .m 文件）并且非常快速和高效。SBJson也不错，但有很多大多数人不需要的开销。（流，写作等）。

NSDictionary *myData = [jsonString objectFromJSONString];

NSString *name = [myData objectForKey:@"data"] objectForKey:@"name"];
NSArray *names = [myData objectForKey:@"data"]; // save all names into an array
于 2012-07-17T13:15:26.353 回答
0

首先你应该添加 Json 框架。取一个字典变量来加载json的响应。因为字典格式的数据。然后在其中找到一个数组，因此获取一个数组并加载该字典。然后将值存储到对象最后你得到了值

于 2012-07-17T13:52:46.147 回答
0

iOS 5 版本中包含用于 JSON 的 API 函数。检查API 文档中的NSJSONSerialization。

例如：

NSDictionary *dict =  [NSJSONSerialization JSONObjectWithData: data options: kNilOptions error: error];
于 2012-07-17T13:39:48.567 回答