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使用 jquery.webcam 进行asp.net 拍照
HTML 代码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="index.aspx.cs" Inherits="JqueryCamera.index" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head >
<title></title>
<script type="text/javascript" src="http://cdn.bootcss.com/jquery/2.1.3/jquery.js"></script>
<script type="text/javascript" src="http://www.mamicode.com/js/jquery.webcam.js"></script>
</head>
<body>
<script type="text/javascript">
$(document).ready(function () {
var image = new Array();
var ctx = null;
var pos = 0;
var w = 320;
var h = 240;
$("#webcam").webcam({
width: 320,
height: 240,
mode: "callback",
swffile: "/js/jscam_canvas_only.swf",
onTick: function (remain) { },
onSave: function (data) {
image.push(data);
pos += 4 * w;
if (pos == 4 * w * h) {
$.post("CamPost.ashx", { w: w, h: h, pix: image.join(‘|‘) }, function (msg) {
$("#flash").attr(‘src‘, msg);
$("#txt_img_path").val(msg);
pos = 0;
image = new Array();
});
}
},
onCapture: function () { webcam.save(); },
onl oad: function () {
var x = 0;
var cams = webcam.getCameraList();
for (var i in cams) {
jQuery("#cams").append("设备信息:" + cams[i] + 设备信);
x++;
}
jQuery("#Div1").append("拥有设备数:" + x + "");
}
});
});
</script>
<div id="cam" style="width: 320px; height:240px; border: solid 1px #ddd; float:left;">
<div id="camBox">
<div id="webcam">
</div>
</div>
</div>
<div style="width: 320px; height: 240px; border: 1px solid #ddd; float:left;">
<img id="flash" />
</div>
<div style="clear: both;">
</div>
<input type="button" value="http://www.mamicode.com/拍照" id="btn_pz" name="btn_pz" onclick="webcam.capture()"/><br />
<input type="text" id="txt_img_path" style=" width:320px;"/>
<div id="cams"></div>
<div id="Div1"></div>
</body>
</html>
CamPost.ashx 代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace JqueryCamera
{
/// <summary>
/// CamPost 的摘要说明
/// </summary>
public class CamPost : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
string wbepath = "";
context.Response.ContentType = "text/plain";
DateTime dt = DateTime.Now;
string fileName = dt.ToString("yyyyMMdd_HHmmss", System.Globalization.DateTimeFormatInfo.InvariantInfo) + ".jpg";
if (context.Request["pix"] != null )
{
if (!string.IsNullOrEmpty(context.Request["w"]) && !string.IsNullOrEmpty(context.Request["h"]) && !string.IsNullOrEmpty(context.Request["pix"])) // && !string.IsNullOrEmpty(context.Request["planid"]) && !string.IsNullOrEmpty(context.Request["examkey"]
{
string planid = DateTime.Now.ToString("yyyyMMdd")+ "";
string examkey = context.Request["examkey"];
string width = context.Request["w"];
string height = context.Request["h"];
string pix = context.Request["pix"];
int w = int.Parse(width);
int h = int.Parse(height);
string savePath = context.Server.MapPath("~/UpLoad/Cam_Img/" + planid + "/");
try
{
System.Drawing.Bitmap bmap = new System.Drawing.Bitmap(w, h);
string[] rows = pix.Split(new char[] { ‘|‘ }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < rows.Length; i++)
{
string[] col = rows[i].Split(new char[] { ‘;‘ }, StringSplitOptions.RemoveEmptyEntries);
for (int j = 0; j < col.Length; j++)
{
System.Drawing.Color color = System.Drawing.Color.FromArgb(Convert.ToInt32(col[j]));
System.Drawing.Color reColor = System.Drawing.Color.FromArgb(255, color);
bmap.SetPixel(j, i, reColor);
}
}
System.IO.DirectoryInfo dirPath = new System.IO.DirectoryInfo(savePath);
if (!dirPath.Exists)
{
dirPath.Create();
}
savePath += fileName;
bmap.Save(savePath);
}
catch (Exception e)
{
}
wbepath = "/UpLoad/Cam_Img/" + planid + "/" + fileName;
context.Response.Write(wbepath);
context.Response.End();
}
}
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
使用 jquery.webcam 进行asp.net 拍照
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