Question

所以我正在发送http'POST'请求，并使用下面的代码获得响应...

static HistoryViewController *sharedInstance;

+(HistoryViewController *) getInstance
{
@synchronized (self) {
    if (sharedInstance == nil) {
        sharedInstance = [[HistoryViewController alloc] init];
        sharedInstance.photo_URL =@"";
        return sharedInstance;
    }else{
        return sharedInstance;
    }
  }
}


- (void)viewDidLoad {
[super viewDidLoad];

NSURLSessionConfiguration *defaultConfigObject = [NSURLSessionConfiguration defaultSessionConfiguration];    
NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration:defaultConfigObject delegate:nil delegateQueue:[NSOperationQueue mainQueue]];    
NSURL *url = [NSURL URLWithString:@"http://www.MyURL/getPhotos.php"];   
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];    
NSString *post = [[NSString alloc] initWithFormat:@"parameter=%@", parameter];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:[post dataUsingEncoding:NSUTF8StringEncoding]];    
NSURLSessionDataTask *dataTask = [defaultSession dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
    NSLog(@"Response:%@ %@\n", response, error);
    if(error == nil)
    {
        NSString *text =[[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];            
        NSLog(@"Data = %@",text);            
        NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:&error];
        [HistoryViewController getInstance].photo_URL = [jsonDict objectForKey:@"photoURL"];

    }
}];
[dataTask resume];

服务器发出的响应如下：

"<MyURLResponse><photoURL>photoURLexample</photoURL><created>04/12/2019 at 8:58 am EDT</created></MyURLResponse>"

那只是一张照片，但是当更多照片上传到瞄准镜时，它将返回所有照片。当我尝试从JSON字典中获取数据时，它返回“ null”，该怎么做才能将<photoURL>之间的响应放入字典或数组中？

Answer 1

您有2个选择。 1.使用NSString的API（例如“ componentsSeparatedByString：”）生成NSArray。参数应在和之间的子字符串中定义。 2.使用NSObject + YYModel。 https://github.com/ibireme/YYModel

Obj-C将服务器响应作为参数并将其放入数组

1 个答案: