| 发表于：2007-03-21 09:14:362楼 得分:90 |
private void btn_upload_click（object sender, system.eventargs e)
{
if（uploadfile.postedfile.filename.trim（)!= " ")
{
//上传文件
string extension = path.getextension（uploadfile.postedfile.filename).toupper（);
string filename = datetime.now.year.tostring（) + datetime.now.month.tostring（) + datetime.now.day.tostring（) + datetime.now.hour.tostring（) + datetime.now.minute.tostring（) + datetime.now.second.tostring（);
string path = server.mappath（ ". ") + "/uploadfile/ " + filename + extension;
uploadfile.postedfile.saveas（path);
//加文字水印，注意，这里的代码和以下加图片水印的代码不能共存
system.drawing.image image = system.drawing.image.fromfile（path);
graphics g = graphics.fromimage（image);
g.drawimage（image, 0, 0, image.width, image.height);
font f = new font（ "verdana ", 32);
brush b = new solidbrush（color.white);
string addtext = addtext.value.trim（);
g.drawstring（addtext, f, b, 10, 10);
g.dispose（);
//加图片水印
system.drawing.image image = system.drawing.image.fromfile（path);
system.drawing.image copyimage = system.drawing.image.fromfile（ server.mappath（ ". ") + "/alex.gif ");
graphics g = graphics.fromimage（image);
g.drawimage（copyimage, new rectangle（image.width-copyimage.width, image.height-copyimage.height, copyimage.width, copyimage.height), 0, 0, copyimage.width, copyimage.height, graphicsunit.pixel);
g.dispose（);
//保存加水印过后的图片,删除原始图片
string newpath = server.mappath（ ". ") + "/uploadfile/ " + filename + "_new " + extension;
image.save（newpath);
image.dispose（);
if（file.exists（path))
{
file.delete（path);
}
response.redirect（newpath);
}
} | | |
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