Ios 从服务器读取Json响应并在objective-c xcode中解析

iOS中的新鲜人尝试解析我从服务器接收的json数据。 下面是我的json响应

{
    "msg": "success",
    "data": {
        "id": "1",
        "salutation": "Mr.",
        "first_name": "DIPAK NARANBHAI",
        "last_name": "PATEL",
        "email": "20xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxc@",
        "phone": "XXXXXXXXXXXXXXXXXXXXXXXXXXXX3094",
        "vin_no": "SALVA2AN1HL921364",
        "lob": "Land Rover",
        "ppl": "Range Rover Evoque",
        "sub_model": "",
        "pl": "2.0 L TD4 132 kW Diesel 5 Door SE 5 Seater",
        "date_of_sale": "10-JUL-17",
        "account_name": "",
        "actual_delivery_date": "10-JUL-17",
        "selling_dealer": "CARGO MOTORS PVT LTD",
        "dlrid": "11201",
        "time": "1499773196",
        "stk_sync": "N",
        "vehicle_reg_no": "MH-01-AB1234"
    }
}

---

使用NSJSONSerialization有什么想法吗？

我认为您对objective-C编程还不熟悉。我试图解释你应该如何检索数据

首先创建一个模型类。将根据服务器响应生成模型类对象

{
    "msg": "success",
    "data": {
        "id": "1",
        "salutation": "Mr.",
        "first_name": "DIPAK NARANBHAI",
        "last_name": "PATEL",
        "email": "20xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxc@",
        "phone": "XXXXXXXXXXXXXXXXXXXXXXXXXXXX3094",
        "vin_no": "SALVA2AN1HL921364",
        "lob": "Land Rover",
        "ppl": "Range Rover Evoque",
        "sub_model": "",
        "pl": "2.0 L TD4 132 kW Diesel 5 Door SE 5 Seater",
        "date_of_sale": "10-JUL-17",
        "account_name": "",
        "actual_delivery_date": "10-JUL-17",
        "selling_dealer": "CARGO MOTORS PVT LTD",
        "dlrid": "11201",
        "time": "1499773196",
        "stk_sync": "N",
        "vehicle_reg_no": "MH-01-AB1234"
    }
}

这个班级应该是这样的

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:YourURL];

    [request setHTTPMethod:@"GET"];
    NSURLSessionConfiguration *sessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];
    NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfiguration];

    NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler: ^(NSData *data, NSURLResponse *response, NSError *error) {

        if (!error)
        {
            NSError *jsonError;

            NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&jsonError];

            if(!jsonError)
            {
                if([json[@"data"] isKindOfClass:[NSDictionary class]])
                {
                     YourModelClass *modelObject = [[YourModelClass alloc] initWithDictionary:json[@"data"]];
                }
            }

        }
    }];
    [task resume];

YourModelClass.h文件

#import <Foundation/Foundation.h>

@interface YourModelClass : NSObject

@property (nonatomic, strong) NSNumber *id;
@property (nonatomic, strong) NSString * salutation;
@property (nonatomic, strong) NSString * firstName;
@property (nonatomic, strong) NSString * lastName;
@property (nonatomic, strong) NSString * email;
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@property (nonatomic, strong) NSString * vehicleRegNo;

- (instancetype)initWithDictionary: (NSDictionary *) dictionary;

@end

现在假设您获得了作为数据的服务器响应

使用这些数据，您可以像这样填充模型对象

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:YourURL];

    [request setHTTPMethod:@"GET"];
    NSURLSessionConfiguration *sessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];
    NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfiguration];

    NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler: ^(NSData *data, NSURLResponse *response, NSError *error) {

        if (!error)
        {
            NSError *jsonError;

            NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&jsonError];

            if(!jsonError)
            {
                if([json[@"data"] isKindOfClass:[NSDictionary class]])
                {
                     YourModelClass *modelObject = [[YourModelClass alloc] initWithDictionary:json[@"data"]];
                }
            }

        }
    }];
    [task resume];

---

我用下面的代码解决了这个问题

 NSMutableDictionary *jsondata = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&error];
                NSMutableArray *jsonfname = [[jsondata objectForKey:@"data"] objectForKey:@"first_name"];
                NSMutableArray *jsonlname = [[jsondata objectForKey:@"data"] objectForKey:@"last_name"];

---

我正在使用的以下代码可能重复：NSMutableArray*jsondata=[jsonObject objectForKey:@“data”]；对于（jsondata中的NSDictionary*getdata）{custfname=[getdata objectForKey:@“first_name”]；custlname=[getdata objectForKey:@“last_name”]；}但获取以下错误：[[Uu_NSCFConstantString objectForKey:]：根据您的服务器响应，无法识别的选择器发送到实例0x37E85A28，代码应该是这样的，我在您的服务器响应中没有找到任何数组，NSDictionary*jsonData=json[@“data”]；客户名称=[jsonData objectForKey:@“姓氏”]；客户名称=[jsonData objectForKey:@“姓氏”]；