从数据库里面读取的图片信息:buffer
MemoryStream stream = new MemoryStream(buffer,0,buffer.Length);
System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
img.Save(filepath);
可是第2行:System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
总提示:Parameter is not valid.,请帮忙如何解决
MemoryStream stream = new MemoryStream(buffer,0,buffer.Length);
System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
img.Save(filepath);
可是第2行:System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
总提示:Parameter is not valid.,请帮忙如何解决
byte[] data = File.ReadAllBytes(@"E:\123.jpg");
MemoryStream ms = new MemoryStream(data);
Image img = Image.FromStream(ms);
img.Save(@"E:\bb\123.jpg");试了没问题 你确定stream正确获取了?
Response.BinaryWrite(img);
正好做过楼主说的东东,注释一下:Accessory_Data是你数据库里二进制数据的那个字段
String filepath = "E:\\100.jpg";
byte[] buffer = null;
using (FileStream fs = new FileStream("E:\\1.jpg", FileMode.Open, FileAccess.Read))
{
buffer = new byte[(int)fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
}
using (MemoryStream stream = new MemoryStream(buffer, 0, buffer.Length))
{
Image img = Image.FromStream(stream);
img.Save(filepath);
stream.Close();
}
select ImageData from table
buffer= (byte[])dr["ImageData"]; MemoryStream stream = new MemoryStream(buffer,0,buffer.Length);
System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
img.Save(filepath);
看看这个帖子吧 看看可有什么帮助
所以显示不能把二进制的数据转换成图片
重新保存一个二进制图片看看