如何将位图对象作为图像保存到Amazon S3？
我已经完成了所有设置但是我有限的C sharp阻止了我完成这一切.
// I have a bitmap iamge
Bitmap image = new Bitmap(width,height);
// Rather than this
image.save(file_path);
// I'd like to use S3
S3 test = new S3();
test.WritingAnObject("images","testing2.png",image);
// Here is the relevant part of write to S3 function
PutObjectRequest titledRequest = new PutObjectRequest();
titledRequest.WithMetaData("title","the title")
.WithContentBody("this object has a title")
.WithBucketName(bucketName)
.WithKey(keyName);
正如您所看到的,S3函数只能接受一个字符串并将其保存为文件正文.
我怎样才能以这样的方式编写它,它允许我传入一个位图对象并将其保存为图像？也许作为一个流？还是作为字节数组？
我感谢任何帮助.
解决方法
您将使用WithInputStream或WithFilePath.例如,在将新图像保存到S3时：
using (var memoryStream = new MemoryStream())
{
using(var yourBitmap = new Bitmap())
{
//Do whatever with bitmap here.
yourBitmap.Save(memoryStream,ImageFormat.Jpeg); //Save it as a JPEG to memory stream. Change the ImageFormat if you want to save it as something else,such as PNG.
PutObjectRequest titledRequest = new PutObjectRequest();
titledRequest.WithMetaData("title","the title")
.WithInputStream(memoryStream) //Add file here.
.WithBucketName(bucketName)
.WithKey(keyName);
}
}
