Base64 Over HTTP POST 丢失数据 （Objective-C）

我目前有一个HTTP POST请求和一个Base64编码库，我将图像编码到B64，然后通过POST方法通过HTTP发送。

我将Base64输出到XCodes控制台，复制并粘贴它，它完美地工作。尽管我存储在数据库中的Base64（MongoDB，纯文本文件等）总是在另一端损坏。

工作版本（从XCode复制和粘贴）：http://dontpanicrabbit.com/api/working.php 损坏的版本（来自MongoDB数据库）：http://dontpanicrabbit.com/api/grabimage.php

如果您查看源代码，您会注意到它们是相同的，但是在损坏的版本中添加了空格。

我使用的 Objective-C 代码是：

MyImage.image = [info objectForKey:UIImagePickerControllerOriginalImage];

    NSData *imageData = UIImageJPEGRepresentation(MyImage.image, 0);

    [Base64 initialize];
    NSString *encoded = [Base64 encode:imageData];

    NSString *urlPOST = encoded;
    //NSLog(@"%@",encoded);

    NSString *varyingString1 = @"picture=";
    NSString *varyingString2 = urlPOST;
    NSString *post = [NSString stringWithFormat: @"%@%@", varyingString1, varyingString2];
    NSLog(@"%@", post);
    //NSString *post = @"image=%@",urlPOST;
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];

    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:@"url/api/insertimage.php"]];
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:postData];
    NSData *returnData = [NSURLConnection sendSynchronousRequest: request returningResponse: nil error: nil];
    NSString *strResult = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

PHP -> MongoDB Storage

<?php
    try {
      // open connection to MongoDB server
      $conn = new Mongo('localhost');

      // access database
      $db = $conn->dablia;

      // access collection
      $collection = $db->images;

      // insert a new document
      $item = array(
        'picture' => $_POST['picture']
      );
      $collection->insert($item);
      echo 'Inserted document with ID: ' . $item['_id'];

      // disconnect from server
      $conn->close();
    } catch (MongoConnectionException $e) {
      die('Error connecting to MongoDB server');
    } catch (MongoException $e) {
      die('Error: ' . $e->getMessage());
    }
?>

输出代码：

<?php
try {
  // open connection to MongoDB server
  $conn = new Mongo('localhost');

  // access database
  $db = $conn->dablia;

  // access collection
  $collection = $db->images;

  // execute query
  // retrieve all documents
  $cursor = $collection->find();

  // iterate through the result set
  // print each document
  foreach ($cursor as $obj) {
    echo '<img src="data:image/jpeg;base64,'.trim($obj['picture']).'">';
  }

  // disconnect from server
  $conn->close();
} catch (MongoConnectionException $e) {
  die('Error connecting to MongoDB server');
} catch (MongoException $e) {
  die('Error: ' . $e->getMessage());
}
?>

我不知道为什么我似乎在POST上腐败？