Json 加速器和 AFNetworking

Posted 2023-03-16

【中文标题】Json 加速器和 AFNetworking

【英文标题】：Json Accelerator and AFNetworking

【发布时间】：2013-03-26 20:24:59

【问题描述】：

当操作运行时，我无法在由加速器创建的 JSON 模型中输入数据。 你能告诉我我做错了什么吗？

    [super viewDidLoad];

NSLog(@"you are in a tableViewController");
self.title = @"NavigationOrdini";


NSURLRequest *req = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.stampa6x3.com/json.php?azione=ordini"]];
AFJSONRequestOperation* operation;

operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:req
                                                            success:^(NSURLRequest *request, NSURLResponse *response, id JSON)


    [[ordiniModel alloc] initWithDictionary:JSON];




             failure:^(NSURLRequest *request, NSURLResponse *response, NSError
                       *error, id JSON) 
                 [self setTitle:@"Dictionary"];
                 NSLog(@"failed! %d",[error code]);
             ];
[operation start];


ordiniModel*test;

NSLog(@"il valore è %@",test.ordini.description);

【问题讨论】：

你能说得更具体点吗？你得到什么回应？你有错误吗？

反应没问题！没有错误

【参考方案1】：

AFJSONRequestOperation 是异步的，这意味着代码在应用程序的其余部分运行时继续执行。完成块在代码实际完成时运行。

那就试试吧：

NSLog(@"you are in a tableViewController");
self.title = @"NavigationOrdini";
ordiniModel *test;  // <-- create variable here

NSURLRequest *req = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.stampa6x3.com/json.php?azione=ordini"]];
AFJSONRequestOperation* operation;

operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:req
                                                            success:^(NSURLRequest *request, NSURLResponse *response, id JSON)


    test = [[ordiniModel alloc] initWithDictionary:JSON]; // <-- Assign here
    NSLog(@"il valore è %@",test.ordini.description);



             failure:^(NSURLRequest *request, NSURLResponse *response, NSError
                       *error, id JSON) 
                 [self setTitle:@"Dictionary"];
                 NSLog(@"failed! %d",[error code]);
             ];
[operation start];

【讨论】：

[测试 initWithDictionary:JSON]; //