在iOS7中对UIImage进行编码，并在Java（Base64）中对其进行解码

Question

I am trying to send a UIImage (taken from an iPhone's camera) to a Java Server and display it in a JFrame.

It might have something to do with the Encoding Option as the String in Xcode and Eclipse are slightly different. ex. the xCode string has "+" for spaces, but in Eclipse, it has " " for spaces.

In Objective-C

UIImage *image = info[UIImagePickerControllerEditedImage];
NSData *imageData = UIImagePNGRepresentation([temp objectForKey:@"photo"]);
NSString *base64StringOfImage = [imageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];

I then send this NSString in json to Java

In Java

byte[] imageBytes = Base64.decodeBase64(jsonPhoto.getString("photo"));
BufferedImage img = ImageIO.read(new ByteArrayInputStream(imageBytes));

I get this error on the BufferedImage img line:

javax.imageio.IIOException: Error reading PNG image data

If anyone can show me how to fix this, that would be great.

Answer 1

我想到了。

byte[] imageBytes = Base64.decodeBase64(jsonPhoto.getString("photo").replace(' ', '+'));