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java实现人脸识别源码【含测试效果图】——前台页面层（login.jsp）

2017-09-27 08:19 633 查看

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>登陆</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript" src="js/jquery-1.8.3.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript">
function CatchCode() {
//实际运用可不写，测试代 ， 为单击拍照按钮就获取了当前图像，有其他用途
var canvans = document.getElementById("canvas");
var video = document.getElementById("video");
var context = canvas.getContext("2d");

canvas.width = video.videoWidth;
canvas.height = video.videoHeight;
context.drawImage(video,0,0);

var imgData = canvans.toDataURL();
//获取图像在前端截取22位以后的字符串作为图像数据
var imgData1 = imgData.substring(22);

var username = $("#username").val();
$.ajax({
type: "post",
url: "FaceServlet?tag=login",
data: {"img":imgData1,"username":username},
success: function(data){
alert(data);
},error:function(msg){
alert("检测到不是你的脸");
}
});

}

</script>
</head>

<body>
<h2>登陆</h2>
输入用户名:
<input type="text" name="username" id="username" />
<br /> 把脸靠过来：
<div id="support"></div>
<video id="video" width="120" height="90"
style="border:1px solid red;border-radius: 800px;" autoplay></video>

<canvas style="border:1px solid red;border-radius: 800px;width:120px;height:80px;"
id="canvas"></canvas>
</div>

<br />
<input type="button" value="准备好了就确认" id="snap" />
</body>
</html>

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