用NSJSONSerialization自己构造WebService的Json响应包

NSString *sampleData = @"{\"id\":1, \"name\":\"NickName\", \"sex\":\"Male\", \"PhoneNo\":18818157583, \"comment\":\"Thisiscomment\", \"profile\":\"nothing is impossible\"}"; 

NSDictionary *dict = [NSJSONSerializationJSONObjectWithData:[sampleData dataUsingEncoding:NSUTF8StringEncoding]options:(NSJSONReadingMutableContainers)error:nil];

CustomModel *model = [ [CustomModel alloc] initWithDict: dict];