[英]How to upload image to server from gallery as JSON on iOS
如何從iPhone上的庫中將圖像作為JSON上傳到服務器? 我嘗試了以下方法:
[Loading startLoading:YES];
NSString *urlString = [NSString stringWithFormat:@"http://railsboxtech.com/singing/jsn_song/register_response.php?accesstoken=%@",Access_Token];
//username, password, name, email, country
NSString *parameter = [NSString stringWithFormat:@"username=%@&password=%@&fname=%@&email=%@&lname=%@&btnImage4=%@",userField.text,passField.text,fnameField.text,emailField.text,lnameField.text,btnImage4];
NSConnection *conn = [[NSConnection alloc] initWithDelegate:self];
[conn sendRequest:urlString withParaMeter:parameter withMethod:@"POST" withTag:1];
[conn startAsynchronousRequest];
如果您想將圖像上傳為字符串,則必須將圖像數據轉換為Base64,然后您可以使用上述方法: -
要轉換為base64字符串,請參閱此Stack Overflow答案 。 然后,您可以使用代碼進行上傳。
其他方式
您可以直接上傳圖片,如下所示:
-(void)uploadImage
{
NSData *imageData = UIImagePNGRepresentation(yourImage);
NSString *urlString = [ NSString stringWithFormat:@"http://yourUploadImageURl.php?intid=%@",1];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"];
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"%@\"\r\n", 1]] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:body];
[NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
}
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