C# 通过web应用程序生成条形码
我想通过我的web应用程序生成条形码。我试图通过谷歌找到实现它的源代码,但我得到的代码是通过Windows应用程序生成条形码。但我希望代码在我的web应用程序中包含相同的功能。web应用程序的代码应该是什么?web应用程序中picturebox的替代品应该是什么 Windows应用程序的代码:C# 通过web应用程序生成条形码,c#,asp.net,web-applications,barcode,C#,Asp.net,Web Applications,Barcode,我想通过我的web应用程序生成条形码。我试图通过谷歌找到实现它的源代码,但我得到的代码是通过Windows应用程序生成条形码。但我希望代码在我的web应用程序中包含相同的功能。web应用程序的代码应该是什么?web应用程序中picturebox的替代品应该是什么 Windows应用程序的代码: using (MemoryStream ms = new MemoryStream()) { bitmap.Save(ms, ImageFormat.Png); pictureBox1.I
using (MemoryStream ms = new MemoryStream())
{
bitmap.Save(ms, ImageFormat.Png);
pictureBox1.Image = bitmap;
pictureBox1.Height = bitmap.Height;
pictureBox1.Width = bitmap.Width;
}
生成条形码的代码:
private void button1_Click(object sender, EventArgs e)
{
string barcode = textBox1.Text;
Bitmap bitmap = new Bitmap(barcode.Length + 40, 150);
using (Graphics graphics = Graphics.FromImage(bitmap))
{
Font ofont = new System.Drawing.Font("Free 3 of 9 Extended", 40);
PointF point = new PointF(2f, 2f);
SolidBrush black = new SolidBrush(Color.Black);
SolidBrush white = new SolidBrush(Color.White);
graphics.FillRectangle(white, 0, 0, bitmap.Width, bitmap.Height);
graphics.DrawString("*" + barcode + "*", ofont, black, point);
}
}
这不需要任何c代码。这是一个示例html页面
<html>
<style>
@font-face {
font-family: barcode;
src: url(free3of9.ttf);
}
</style>
<body>
ABC
<div style='font-family:barcode;font-size:32px;'>123456789</div>
DEF
</body>
</html>
@字体{
字体系列:条码;
src:url(free3of9.ttf);
}
基础知识
123456789
DEF
以下是输出:
这不需要任何c代码。这是一个示例html页面
<html>
<style>
@font-face {
font-family: barcode;
src: url(free3of9.ttf);
}
</style>
<body>
ABC
<div style='font-family:barcode;font-size:32px;'>123456789</div>
DEF
</body>
</html>
@字体{
字体系列:条码;
src:url(free3of9.ttf);
}
基础知识
123456789
DEF
以下是输出:
您可以使用.net WebSocket服务器将图像数据发送到Web客户端。下面是一个简单的例子:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SuperSocket.SocketBase;
using SuperSocket.SocketBase.Config;
using SuperSocket.SocketBase.Logging;
using SuperSocket.SocketBase.Protocol;
using SuperSocket.SocketEngine;
namespace SuperSocket.QuickStart.TelnetServer
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Press any key to start the server!");
Console.ReadKey();
Console.WriteLine();
var appServer = new AppServer();
//Setup the appServer
if (!appServer.Setup(2012)) //Setup with listening port
{
Console.WriteLine("Failed to setup!");
Console.ReadKey();
return;
}
appServer.NewSessionConnected += new SessionHandler<AppSession>(appServer_NewSessionConnected);
Console.WriteLine();
//Try to start the appServer
if (!appServer.Start())
{
Console.WriteLine("Failed to start!");
Console.ReadKey();
return;
}
Console.WriteLine("The server started successfully, press key 'q' to stop it!");
while (Console.ReadKey().KeyChar != 'q')
{
Console.WriteLine();
continue;
}
Console.WriteLine();
//Stop the appServer
appServer.Stop();
Console.WriteLine("The server was stopped!");
}
static void appServer_NewSessionConnected(AppSession session)
{
session.Send("Welcome to SuperSocket Telnet Server");
}
}
}
使用系统;
使用System.Collections.Generic;
使用System.Linq;
使用系统文本;
使用SuperSocket.SocketBase;
使用SuperSocket.SocketBase.Config;
使用SuperSocket.SocketBase.Logging;
使用SuperSocket.SocketBase.Protocol;
使用SuperSocket.SocketEngine;
命名空间SuperSocket.QuickStart.TelnetServer
{
班级计划
{
静态void Main(字符串[]参数)
{
WriteLine(“按任意键启动服务器!”);
Console.ReadKey();
Console.WriteLine();
var appServer=new appServer();
//安装appServer
if(!appServer.Setup(2012))//带侦听端口的安装程序
{
Console.WriteLine(“设置失败!”);
Console.ReadKey();
返回;
}
appServer.NewSessionConnected+=新会话处理程序(appServer_NewSessionConnected);
Console.WriteLine();
//尝试启动appServer
如果(!appServer.Start())
{
Console.WriteLine(“启动失败!”);
Console.ReadKey();
返回;
}
WriteLine(“服务器已成功启动,请按“q”键停止它!”);
while(Console.ReadKey().KeyChar!=“q”)
{
Console.WriteLine();
继续;
}
Console.WriteLine();
//停止appServer
appServer.Stop();
WriteLine(“服务器已停止!”);
}
静态无效appServer_NewSessionConnect(AppSession会话)
{
Send(“欢迎使用SuperSocket Telnet服务器”);
}
}
}
您可以使用会话发送图像数据。send()。
然后创建一个div元素并用JavaScript绘制图像:
var ws = new WebSocket("ws://127.0.0.1:2012/");
ws.onmessage = function (evt) {
var bytes = new Uint8Array(evt.data);
var data = "";
var len = bytes.byteLength;
for (var i = 0; i < len; ++i) {
data += String.fromCharCode(bytes[i]);
}
var img = document.getElementById("image");
img.src = "data:image/png;base64,"+window.btoa(data);
};
var ws=new-WebSocket(“ws://127.0.0.1:2012/”;
ws.onmessage=函数(evt){
var bytes=新的Uint8Array(evt.data);
var数据=”;
var len=字节数。字节长度;
对于(变量i=0;i
您可以使用.net WebSocket服务器将图像数据发送到Web客户端。下面是一个简单的例子:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SuperSocket.SocketBase;
using SuperSocket.SocketBase.Config;
using SuperSocket.SocketBase.Logging;
using SuperSocket.SocketBase.Protocol;
using SuperSocket.SocketEngine;
namespace SuperSocket.QuickStart.TelnetServer
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Press any key to start the server!");
Console.ReadKey();
Console.WriteLine();
var appServer = new AppServer();
//Setup the appServer
if (!appServer.Setup(2012)) //Setup with listening port
{
Console.WriteLine("Failed to setup!");
Console.ReadKey();
return;
}
appServer.NewSessionConnected += new SessionHandler<AppSession>(appServer_NewSessionConnected);
Console.WriteLine();
//Try to start the appServer
if (!appServer.Start())
{
Console.WriteLine("Failed to start!");
Console.ReadKey();
return;
}
Console.WriteLine("The server started successfully, press key 'q' to stop it!");
while (Console.ReadKey().KeyChar != 'q')
{
Console.WriteLine();
continue;
}
Console.WriteLine();
//Stop the appServer
appServer.Stop();
Console.WriteLine("The server was stopped!");
}
static void appServer_NewSessionConnected(AppSession session)
{
session.Send("Welcome to SuperSocket Telnet Server");
}
}
}
使用系统;
使用System.Collections.Generic;
使用System.Linq;
使用系统文本;
使用SuperSocket.SocketBase;
使用SuperSocket.SocketBase.Config;
使用SuperSocket.SocketBase.Logging;
使用SuperSocket.SocketBase.Protocol;
使用SuperSocket.SocketEngine;
命名空间SuperSocket.QuickStart.TelnetServer
{
班级计划
{
静态void Main(字符串[]参数)
{
WriteLine(“按任意键启动服务器!”);
Console.ReadKey();
Console.WriteLine();
var appServer=new appServer();
//安装appServer
if(!appServer.Setup(2012))//带侦听端口的安装程序
{
Console.WriteLine(“设置失败!”);
Console.ReadKey();
返回;
}
appServer.NewSessionConnected+=新会话处理程序(appServer_NewSessionConnected);
Console.WriteLine();
//尝试启动appServer
如果(!appServer.Start())
{
Console.WriteLine(“启动失败!”);
Console.ReadKey();
返回;
}
WriteLine(“服务器已成功启动,请按“q”键停止它!”);
while(Console.ReadKey().KeyChar!=“q”)
{
Console.WriteLine();
继续;
}
Console.WriteLine();
//停止appServer
appServer.Stop();
WriteLine(“服务器已停止!”);
}
静态无效appServer_NewSessionConnect(AppSession会话)
{
Send(“欢迎使用SuperSocket Telnet服务器”);
}
}
}
您可以使用会话发送图像数据。send()。
然后创建一个div元素并用JavaScript绘制图像:
var ws = new WebSocket("ws://127.0.0.1:2012/");
ws.onmessage = function (evt) {
var bytes = new Uint8Array(evt.data);
var data = "";
var len = bytes.byteLength;
for (var i = 0; i < len; ++i) {
data += String.fromCharCode(bytes[i]);
}
var img = document.getElementById("image");
img.src = "data:image/png;base64,"+window.btoa(data);
};
var ws=new-WebSocket(“ws://127.0.0.1:2012/”;
ws.onmessage=函数(evt){
var bytes=新的Uint8Array(evt.data);
var数据=”;
var len=字节数。字节长度;
对于(变量i=0;i