using System;
using System.Collections;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
using System.IO;
using System.Drawing;
namespace WebAppTest
{
/// <summary>
/// $codebehindclassname$ 的摘要说明
/// </summary>
[WebService(Namespace =
"http://tempuri.org/")]
[WebServiceBinding(ConformsTo =
WsiProfiles.BasicProfile1_1)]
public class upload : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType =
"text/plain";
HttpPostedFile hpf = context.Request.Files[
"upload"];
if (hpf.ContentLength >
0)
{
string path = context.Server.MapPath(
"~/resource/image/");
if (!
Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
string filename =
hpf.FileName;
string newFilename = DateTime.Now.ToFileTime() +
Path.GetExtension(filename);
string fullname = path +
newFilename;
hpf.SaveAs(fullname);
string waterMarkFileName = context.Server.MapPath(
"~/resource/image/logo.png");
AddWaterMark(fullname, waterMarkFileName);
context.Response.Write("upload success");
}
else
{
context.Response.Write("select file");
}
}
public bool IsReusable
{
get
{
return false;
}
}
/// <summary>
/// 加上水印
/// </summary>
/// <param name="fullname">需要加上水印图片的全路径</param>
/// <param name="waterMarkFileName">水印图片的全路径</param>
public void AddWaterMark(
string fullname,
string waterMarkFileName)
{
//D:\projects\VS2008\WebAppTest\WebAppTest\resource\image 结尾没有'\'
string dicName =
Path.GetDirectoryName(fullname);
string newFilename = DateTime.Now.ToFileTime() +
Path.GetExtension(fullname);
string newFullname = dicName +
"/" +
newFilename;
Bitmap bmp =
new Bitmap(fullname);
int width =
bmp.Width;
int height =
bmp.Height;
Bitmap logo =
new Bitmap(waterMarkFileName);
//设置透明
logo.MakeTransparent();
using(Graphics g =
Graphics.FromImage(bmp))
{
//将图片加上边框
g.DrawRectangle(
new Pen(Color.Green,
6),
new Rectangle(
0,
0,width,height));
//加上水印
g.DrawImage(logo,width-
6-logo.Width,height-
6-
logo.Height);
}
bmp.Save(newFullname);
bmp.Dispose();
logo.Dispose();
}
}
}
转载于:https://www.cnblogs.com/zoro-zero/p/4230574.html
相关资源：c# 上传图片加水印，包含加文字水印和图片水印两种方式
