我正在尝试发送带有多个参数的帖子并在 base64 中包含图像。
图像编码做得很好,我在在线base64到图像转换器中检查了base64图像,看起来图像编码成功。我可以毫无问题地进行后期处理,但是当我下载它时,日志显示此错误:
错误:ImageIO:JPEG 损坏的 JPEG 数据:标记 0xf1 之前的 120 个无关字节
错误:ImageIO:JPEG 不支持的标记类型 0xf1
我用一种方法做到这一点
jpgData = UIImageJPEGRepresentation(image, 0.1f);
imageString = [jpgData base64EncodedStringWithOptions:0];
这是发送帖子的方法,我认为这是错误所在。
- (void)putComment{
dispatch_queue_t backgroundQueue = dispatch_queue_create("com.mycompany.myqueue", 0);
__block int responseCode = 0;
dispatch_async(backgroundQueue, ^{
NSString *requestParams = [NSString stringWithFormat:
@"idAdvertiser=%@&idUserDevice=%@&image=%@&text=%@&userName=%@&groups=%@",
ADVERTISER_ID, idUserDevice, imageString, texto, userName, groups];
[requestParams stringByReplacingOccurrencesOfString:@"+" withString:@"%2B"];
NSData *postData = [requestParams dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
// NSData *postData = [requestParams dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLenght = [NSString stringWithFormat:@"%d", [postData length]];
NSMutableURLRequest *request = [NSMutableURLRequest new];
[request setURL:[NSURL URLWithString: URL_COMMENT]];
[request setHTTPMethod:@"POST"];
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setValue:postLenght forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:@"Current-Type"];
[request setHTTPBody:postData];
[request setTimeoutInterval:40];
NSError *error = nil;
NSHTTPURLResponse *response;
NSData *responseData = [NSURLConnection sendSynchronousRequest: request
returningResponse: &response
error: &error];
});
}
服务器端运行良好(在 Android 应用程序中测试),因此问题与服务器无关。