Objective C从PHP获取JSON [重复]

Posted 2023-03-16

【中文标题】Objective C从PHP获取JSON [重复]

【英文标题】：Objective C get JSON from PHP [duplicate]

【发布时间】：2014-11-28 07:01:06

【问题描述】：

我正在制作一些应用程序，该应用程序调用 php 来传递 JSON 文件。

在我的 PHP 代码中，我有这样的 JSON 结果"files":["name":"sharing-config.txt","date":"28-11-2014-11-59-59","name":"2.jpg","date":"28-11-2014-14-25-35"]

现在我想将 JSON 结果调用到我的 objc 函数并将其返回为 NSArray，有人可以帮助我吗？

非常感谢您的帮助:)

对不起，我的英语不好。

更新

下面是我的 PHP 代码

$directory  = '../download/sponsors';

$arrayFiles     = array();

if ($handle = opendir($directory)) 


$i = 1 ;

while (false !== ($entry = readdir($handle))) 

    if($entry != "." && $entry != "..")

        if (file_exists($directory  . "/" .$entry)) 

            $fileList       = array("name" => $entry, "date" => date ("d-m-Y-H-i-s", filemtime($directory . "/" .$entry)));
            $arrayFiles[]   = $fileList;

        

    


closedir($handle);



$obj = new stdClass();
$obj->files = $arrayFiles;

echo json_encode($obj);

我的 ObjC 代码

-(void)getPHPdata 
NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://appserver.com/applications/appUpdate.php"]
                                          cachePolicy:NSURLRequestUseProtocolCachePolicy
                                      timeoutInterval:60.0];
NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if (theConnection) 
    receivedData = [[NSMutableData data] retain];
    NSString *receivedDataString = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding];
    NSLog(@"This1: %@", receivedData);
    NSLog(@"This2: %@", receivedDataString);
 else 
    // Inform the user that the connection failed.



- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response 
[receivedData setLength:0];
NSLog(@"This3: %@", receivedData);


- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 
// Append the new data to receivedData.
// receivedData is an instance variable declared elsewhere.
[receivedData appendData:data];

filePath = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding]; // Get the return value from server

connectionSuccess = YES;


NSLog(@"This4: %@", [filePath stringByReplacingOccurrencesOfString:@"-" withString:@""]);
NSLog(@"This5: %@", receivedData);

这是我从 xCode 得到的日志

2014-11-28 14:35:51.905 balisfinestvillas[17577:9635538] This4: "files":["name":"sharingconfig.txt","date":"28112014115959","name":"2.jpg","date":"28112014142535"]

干杯:)

【问题讨论】：

请显示您的代码...

请看我的更新，谢谢

【参考方案1】：

您的JSon 响应以NSDictionary 开头，而不是NSArray

- (void)connectionDidFinishLoading:(NSURLConnection *)connection


 NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:receivedData options: kNilOptions error:nil];

  NSMutableArray *finalresult=[[NSMutableArray alloc] init];  // allocating the array

    NSArray *responseArr=[jsonDict objectForKey@"files"];

    for (NSDictionary *tmp in responseArr) 

      NSMutableDictionary  *itemshowdetails=[[NSMutableDictionary alloc]init];

        [itemshowdetails setValue:[tmp objectForKey:@"name"] forKey:@"name"];
        [itemshowdetails setValue:[tmp objectForKey:@"date"] forKey:@"date"];

         [finalresult addObject:itemshowdetails];

    

   

检索

此方法用于您想要访问您的数据的地方，自定义您的自我

 for (int i=0;i<[finalresult count];i++)

 NSLog(@"%@",[[finalresult objectAtIndex:i] objectForKey:@"name"];

【讨论】：

self. self.finalresult?不清楚你为什么用了两次self。

哦，对不起，请稍等，我更新了答案

@Kampai -- 你给了下载投票，你能解释一下我犯了什么错误

根据你的回购 - 你必须解释你做了什么。你还没有解释把这个 for 循环放在哪里。你也没有按照OP的需要回答。

@Anbu.Karthik 请告诉我，我可以在你的代码中传递我的 PHP url，谢谢。