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我有一个web服务(使用CakePHP),我发布了字符串数据,以便正在使用我正在处理的Mac OS X应用程序。使用二进制映像数据更新CakePHP web服务
最初,我得到了一些建议,我需要创建一个Base 64编码的字符串,将PNG图像传递给CakePHP。所以我的计划是简单地生成一个URL编码的字符串(请参阅下面的代码示例)。为此,我已经加入了一个处理base64编码和解码的第三方类。
然而,它看起来像CakePHP的更新()函数是去除从基部64编码的字符串一些字符:
Original string may contain something like:
5nd/9ne/+zuPelWPFYtGrRpde2tlK3eXwv/
But the one that is actually stored and eventually retrieved may be:
5nd/9ne/ zuPelWPFYtGrRpde2tlK3eXwv/
奇怪,是吗?我正在研究CakePHP如何工作的知识,所以我希望这可能是一个简单的答案。看起来我应该能够将该base 64编码的字符串发布到CakePHP - 并且它应该更新而不解释/删除代码中的任何字符。有什么建议?
这里是如何我张贴我的价值观,以CakePHP的Web服务的代码片段:
- (void) updateApi {
NSLog(@"Updating user account settings");
NSString* request_url = @"https://stackoverflow.com/users/update";
NSLog(@"%@", [NSString stringWithFormat:@"%@%@", @"http://somesite.com", request_url]);
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@", @"http://somesite.com", request_url]]];
NSMutableString* post_values = [NSMutableString stringWithFormat:@"data[id]=%@", [[NSUserDefaults standardUserDefaults] objectForKey:@"user_id"]];
[post_values appendFormat:@"&data[company]=%@", [company_field stringValue]];
[post_values appendFormat:@"&data[phone]=%@", [phone_field stringValue]];
[post_values appendFormat:@"&data[address1]=%@", [address1_field stringValue]];
[post_values appendFormat:@"&data[address2]=%@", [address2_field stringValue]];
[post_values appendFormat:@"&data[city]=%@", [city_field stringValue]];
[post_values appendFormat:@"&data[state]=%@", [state_field stringValue]];
[post_values appendFormat:@"&data[zip]=%@", [zip_field stringValue]];
[post_values appendFormat:@"&data[website]=%@", [website_field stringValue]];
// Iteration 09 - Store logo as PNG and prepare to upload to server
NSImage *logoImage = [logo_image image];
if (logoImage) {
// Image exists; we need to convert it to a BLOB for our back-end database posting
NSLog(@"Image exists in logo_image");
// Grab possible representations of this image
NSArray *representations = [logoImage representations];
// Create the PNG data
NSData *imageData = [NSBitmapImageRep representationOfImageRepsInArray:representations usingType:NSPNGFileType properties:nil];
// Base 64 encoding should happen here
NSString *base64encodedImageData = [imageData base64Encoding]; // Convert to base 64 string
NSLog(@"\n\nBase 64 image data encoded as \n\n%@\n\n", base64encodedImageData);
// Store data in parameter
[post_values appendFormat:@"&data[logo_png_data]=%@", base64encodedImageData];
}
NSString *encoded_post_values = [post_values stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"\n\nEncoded post values string is \n\n%@\n\n", encoded_post_values);
NSData *request_data = [NSData dataWithBytes:[encoded_post_values UTF8String] length:[encoded_post_values length]];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
[request setHTTPBody:request_data];
NSData* return_data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
//NSLog(@"%@", [[NSString alloc] initWithData:return_data encoding:NSUTF8StringEncoding]);
NSString* result = [[CJSONDeserializer deserializer] deserialize:return_data error:nil];
//NSLog(@"%@", result);
}
这里发生的是+转换为空格 请参阅http://stackoverflow.com/questions/5422028/objective-c-how-to-upload-image-and-text-using-http-post – 2012-01-23 18:11:35