使用C#将文件添加到Amazon S3上的存储桶

发布时间：2020-12-15 18:21:39 所属栏目：百科来源：网络整理

导读：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 iamgeBitmap image = new Bitmap(width,height);// Rather than thisimage.save(file_path);// I'd like to use S3S3 test = new

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);
    }
}

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!