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asp.net中如何用Image显示Bitmap

代言 2016-11-07 15:07:18

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在asp.net中使用ThoughtWorks.QRCode出现问题，生成的图片发送前台不能显示。

QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(); qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE; qrCodeEncoder.QRCodeScale = 4; qrCodeEncoder.QRCodeVersion = 7; qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M; Bitmap img = qrCodeEncoder.Encode("123456"); MemoryStream ms = new MemoryStream(); img.Save(ms, System.Drawing.Imaging.ImageFormat.Gif); context.Response.ClearContent(); context.Response.ContentType = "image/Gif"; context.Response.Write(ms.ToArray()); context.Response.End();

我想应该和验证码生成一样的才对，用一个image控件引入生成页面链接，但是窝的就是显示不粗来，是哪里出错了？表示生成的图片用windowsform的控件查看是显示正常的说。。。。

代言

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季伟2016-11-07 15:07:41 1 floor

QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(); qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE; qrCodeEncoder.QRCodeScale = 4; qrCodeEncoder.QRCodeVersion = 7; qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M; Bitmap img = qrCodeEncoder.Encode("123456"); MemoryStream ms = new MemoryStream(); img.Save(ms, System.Drawing.Imaging.ImageFormat.Gif); context.Response.ClearContent(); context.Response.ContentType = "image/Gif"; context.Response.BinaryWrite(ms.ToArray());//这里的Write改成BinaryWrite即可 context.Response.End();