zoukankan
html css js c++ java
图片及生成缩略图
把图片上传到服务器,并生成一个缩略图
UpImage.aspx
<%
@ Page language
=
"
c#
"
Codebehind
=
"
UpImage.aspx.cs
"
AutoEventWireup
=
"
false
"
Inherits
=
"
Sand.WebForm4
"
%>
<!
DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
>
<
HTML
>
<
HEAD
>
<
title
>
WebForm4
</
title
>
<
meta
name
="GENERATOR"
Content
="Microsoft Visual Studio .NET 7.1"
>
<
meta
name
="CODE_LANGUAGE"
Content
="C#"
>
<
meta
name
="vs_defaultClientScript"
content
="JavaScript"
>
<
meta
name
="vs_targetSchema"
content
="http://schemas.microsoft.com/intellisense/ie5"
>
</
HEAD
>
<
body
MS_POSITIONING
="GridLayout"
>
<
form
id
="Form1"
method
="post"
runat
="server"
>
<
FONT
face
="宋体"
><
INPUT
id
="UpFile"
style
="Z-INDEX: 101; LEFT: 256px; POSITION: absolute; TOP: 152px"
type
="file"
runat
="server"
><
INPUT
id
="Submit_File"
style
="Z-INDEX: 102; LEFT: 504px; POSITION: absolute; TOP: 152px"
type
="button"
value
="上传"
name
="Button1"
runat
="server"
></
FONT
>
</
form
>
</
body
>
</
HTML
>
UpImage.aspx.cs
private
void
Button1_ServerClick(
object
sender, System.EventArgs e)
{
string
UpFileName
=
UpFile.PostedFile.FileName.Substring(UpFile.PostedFile.FileName.LastIndexOf(
"
\\
"
),UpFile.PostedFile.FileName.Length
-
UpFile.PostedFile.FileName.LastIndexOf(
"
\\
"
));
UpFile.PostedFile.SaveAs(Server.MapPath(
"
Images\\
"
+
UpFileName));
System.Drawing.Image ObjDrImage
=
System.Drawing.Image.FromFile(Server.MapPath(
"
Images\\
"
+
UpFileName));
System.Drawing.Bitmap BMP
=
new
System.Drawing.Bitmap(
60
,
80
,System.Drawing.Imaging.PixelFormat.Format16bppRgb555);
System.Drawing.Graphics G
=
System.Drawing.Graphics.FromImage(BMP);
G.Clear(Color.Transparent);
G.DrawImage(ObjDrImage,
new
System.Drawing.Rectangle(
new
System.Drawing.Point(
0
,
0
),
new
System.Drawing.Size(
60
,
80
)),
0
,
0
,ObjDrImage.Width,ObjDrImage.Height,System.Drawing.GraphicsUnit.Pixel);
BMP.Save(Server.MapPath(
"
ImagesSL\\SL.jpg
"
),System.Drawing.Imaging.ImageFormat.Jpeg);
G.Dispose();
G
=
null
;
BMP.Dispose();
BMP
=
null
;
ObjDrImage.Dispose();
ObjDrImage
=
null
;
}
查看全文
相关阅读:
PHP操作MYSQL数据库
微信DLL劫持反弹shell复现
ERROR Invalid options in vue.config.js: "baseUrl" is not allowed
求曲线y=lnx在区间(2,6)内的一条切线,使得该切线与直线x=2,x=6及曲线y=lnx所围成的图形的面积最小。
CentOS、Ubuntu、Debian三个linux比较异同
jpa模糊查询(表中的某些数据)
jpa查找数据库最新一条消息
在@Data注释lombok上使用继承警告等于/ hashCode(Warning equals/hashCode on @Data annotation lombok with inheritance)
git基本操作
远程分支git换地址了,本地重新关联
原文地址:https://www.cnblogs.com/Sandheart/p/94782.html
最新文章
Nginx配置中文参数说明
maven项目打包到本地库 两种方式
SpringSecurity+Oauth2+Jwt实现toekn认证和刷新token
使用jwt进行token认证
springboot文件上传 流的方式 后台计算上传进度
vue+axios+springboot文件下载
vue+springboot文件下载
vue+springboot文件上传
java判断当前系统是win还是linux
java文件导出过程 CS、BS差别
热门文章
websocket推送进度条百分比给前台
js获取json对象的属性值
NOSQL基础
内联注入和堆叠注入
MSSQL手工注入
Burp Suite 爆破high级别的DVWA
sudo 提权漏洞(CVE-2019-14287)复现
Maccms 后门分析
网络基础之IP地址
网络基础
Copyright © 2011-2022 走看看