目标C:解析子json对象
目标C:解析子json对象
提问于 2013-04-23 11:20:10
我有这个(很长的)json文件，我需要解析它。
{
"_status": "success",
"_data": {
"clients": [{
"id": 1,
"name": "Audi Bank",
"contacts": [{
"id": 1,
"first_name": "Raymond",
"last_name": "Audi",
"templates": [{
"id": 1,
"name": "SecurityQuestionnaire",
"title": "Security Questionnaire",
"creation_date": "2012-08-12",
"sections": [{
"id": 2,
"title": "Personal questions",
"header": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
"footer": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
"questions": [{
"id": 1,
"type": "MCQ_question",
"value": "What type of firewall would you like to install?",
"answers": [{
"id": 1,
"answer": "Network layer or packet filters"
}, {
"id": 2,
"answer": "Application-layer"
}, {
"id": 3,
"answer": "Proxies"
}, {
"id": 4,
"answer": "Network address translation"
}
]
}, {
"id": 3,
"type": "numerical_question",
"value": "How many posts do you have approximatively in your company?"
}, {
"id": 4,
"type": "short_answer_question",
"value": "What is the name of your IT manage?"
}
]
}, {
"id": 5,
"title": "Professional experience",
"questions": [{
"id": 6,
"type": "long_answer_question",
"value": "Tell us about your business needs"
}, {
"id": 8,
"type": "association",
"value": "Link the department with its number of switches",
"answers": {
"left": [{
"id": 6,
"answer": "Financial Department"
}, {
"id": 7,
"answer": "Marketing Department"
}, {
"id": 8,
"answer": "HR Department"
}
],
"right": [{
"id": 9,
"answer": "over 100"
}, {
"id": 10,
"answer": "under 100"
}
]
}
}, {
"id": 7,
"type": "text",
"title": "Remarks",
"value": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
}
]
}
]
}, {
"id": 2,
"name": "bbbb",
"title": "bbb",
"creation_date": "2000-09-11",
"sections": [{
"id": 2,
"title": "Personal questions",
"header": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
"footer": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
"questions": [{
"id": 1,
"type": "MCQ_question",
"value": "What type of firewall would you like to install?",
"answers": [{
"id": 1,
"answer": "Network layer or packet filters"
}, {
"id": 2,
"answer": "Application-layer"
}, {
"id": 3,
"answer": "Proxies"
}, {
"id": 4,
"answer": "Network address translation"
}
]
}, {
"id": 3,
"type": "numerical_question",
"value": "How many posts do you have approximatively in your company?"
}, {
"id": 4,
"type": "short_answer_question",
"value": "What is the name of your IT manage?"
}
]
}, {
"id": 5,
"title": "Professional experience",
"questions": [{
"id": 6,
"type": "long_answer_question",
"value": "Tell us about your business needs"
}, {
"id": 8,
"type": "association",
"value": "Link the department with its number of switches",
"answers": {
"left": [{
"id": 6,
"answer": "Financial Department"
}, {
"id": 7,
"answer": "Marketing Department"
}, {
"id": 8,
"answer": "HR Department"
}
],
"right": [{
"id": 9,
"answer": "over 100"
}, {
"id": 10,
"answer": "under 100"
}
]
}
}, {
"id": 7,
"type": "text",
"title": "Remarks",
"value": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
}
]
}
]
}
]
}
]
}, {
"id": 2,
"name": "Byblos Bank",
"contacts": [{
"id": 2,
"first_name": "Antoine",
"last_name": "Atallah",
"templates": [{
"id": 1,
"name": "SecurityQuestionnaire",
"title": "Security Questionnaire",
"creation_date": "2012-08-12",
"sections": [{
"id": 2,
"title": "Personal questions",
"header": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
"footer": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
"questions": [{
"id": 1,
"type": "MCQ_question",
"value": "What type of firewall would you like to install?",
"answers": [{
"id": 1,
"answer": "Network layer or packet filters"
}, {
"id": 2,
"answer": "Application-layer"
}, {
"id": 3,
"answer": "Proxies"
}, {
"id": 4,
"answer": "Network address translation"
}
]
}, {
"id": 3,
"type": "numerical_question",
"value": "How many posts do you have approximatively in your company?"
}, {
"id": 4,
"type": "short_answer_question",
"value": "What is the name of your IT manage?"
}
]
}, {
"id": 5,
"title": "Professional experience",
"questions": [{
"id": 6,
"type": "long_answer_question",
"value": "Tell us about your business needs"
}, {
"id": 8,
"type": "association",
"value": "Link the department with its number of switches",
"answers": {
"left": [{
"id": 6,
"answer": "Financial Department"
}, {
"id": 7,
"answer": "Marketing Department"
}, {
"id": 8,
"answer": "HR Department"
}
],
"right": [{
"id": 9,
"answer": "over 100"
}, {
"id": 10,
"answer": "under 100"
}
]
}
}, {
"id": 7,
"type": "text",
"title": "Remarks",
"value": "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
}
]
}
]
}
]
}
]
}
]
}
}我面临的问题是，我有很多子json对象，我编写了这个函数来解析这个文件。
-(void)readJson
{
//Emplacement du json file
NSString *filePath = [[NSBundle mainBundle]pathForResource:@"allClients?userId=2" ofType:@"json"];
//Contenu du fichier
NSString *jsonString = [NSString stringWithContentsOfFile:filePath];
NSError *error;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&error];
id wordParam = [[json objectForKey:@"words"] objectForKey:@"word"];
if ([wordParam isKindOfClass:[NSArray class]]) {
NSDictionary *word = [(NSArray *)wordParam objectAtIndex:0];
} else if ([wordParam isKindOfClass:[NSDictionary class]]) {
NSDictionary *word = (NSDictionary *)wordParam;
} else {
NSLog(@"error. %@ is not an array or dictionary", wordParam);
}
//_data
NSDictionary *items = [json objectForKey:@"_data"];
for (NSDictionary *item in items)
{
NSDictionary *clients = [items objectForKey:@"clients"];
for(NSDictionary *client in clients)
{
NSString * clientId=[client objectForKey:@"id"];
NSString * name=[client objectForKey:@"name"];
@try{
NSDictionary *contacts=[clients objectForKey:@"contacts"];
}
@catch (NSException *ex) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[NSString stringWithFormat:@"%@",ex]
delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
[alert show];
}
}
}
}这个函数在这里给了我一个例外：
NSDictionary *contacts=[clients objectForKey:@"contacts"];我是新手，谢谢你的帮助和耐心。
回答 1
Stack Overflow用户
发布于 2013-04-23 12:14:10
NSDictionary *contacts=clients objectForKey：@“联系人”；
那应该是[client objectForKey:@"contacts"]。注意，client是单数，而不是复数。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/16168028
复制相关文章
相似问题
腾讯云开发者
Copyright © 2013 - 2026 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有
深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 
粤公网安备44030502008569号
腾讯云计算（北京）有限责任公司 京ICP证150476号 | 京ICP备11018762号