你可能不知道的事(服务器返回 id)

最后更新于:2022-04-01 14:25:21

首先说一下id的问题 加入服务器就是给我们反馈了一个id:如下: ![id](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-04-07_57061102a4860.jpg "") 既然返回的是id,有些人就乱了阵脚,“这个是关键字,怎么来接?” 其实没事,他返回什么给我们,我们就拿什么来接,就行。看一下如何解决: 既然返回的是字典,那么久字典转模型,写个模型先: 模型.h ~~~ @interface ZYDemo : NSObject @property(nonatomic,assign)int id; @property(nonatomic,copy)NSString *message; - (instancetype)initWithDict:(NSDictionary *)dict; + (instancetype)demoWithDict:(NSDictionary *)dict; @end ~~~ 模型.m ~~~ @implementation ZYDemo - (instancetype)initWithDict:(NSDictionary *)dict { if (self = [super init]) { [self setValuesForKeysWithDictionary:dict]; } return self; } + (instancetype)demoWithDict:(NSDictionary *)dict { return [[self alloc]initWithDict:dict]; } @end ~~~ 在viewControllder进行数据解析 ~~~ - (void)viewDidLoad { [super viewDidLoad]; NSURL *url = [NSURL URLWithString:@"http://localhost/demo.json"]; NSURLRequest *request1 = [NSURLRequest requestWithURL:url]; NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:1 timeoutInterval:10.0]; [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) { NSDictionary *result = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil]; ZYDemo *demo = [ZYDemo demoWithDict:result]; NSLog(@"%@",demo); }]; } ~~~ 看一下我们的模型是否出来了: ![id](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-04-07_57061102b4fde.jpg "") 看,我们一样能解决,不要去为难服务器的人
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