利用html5调用本地摄像头拍照上传图片
测试只有PC上可以，手机上不行
<!DOCTYPE HTML>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script>
// Put event listeners into place
window.addEventListener("DOMContentLoaded",
function() {
// Grab elements, create settings, etc.
var canvas = document.getElementById("canvas"),
context = canvas.getContext("2d"),
video = document.getElementById("video"),
videoObj = { "video": true },
errBack = function(error) {
console.log("Video capture error: ", error.code);
};
// Put video listeners into place
if(navigator.getUserMedia) { // Standard
navigator.getUserMedia(videoObj,
function(stream) {
video.src = stream;
video.play();
}, errBack);
} else if(navigator.webkitGetUserMedia) {
// WebKit-prefixed
navigator.webkitGetUserMedia(videoObj,
function(stream){
video.src = window.webkitURL.createObjectURL(stream);
video.play();
}, errBack);
}
else if(navigator.mozGetUserMedia) { // Firefox-prefixed
navigator.mozGetUserMedia(videoObj,
function(stream){
video.src = window.URL.createObjectURL(stream);
video.play();
}, errBack);
}
}, false);
// 触发拍照动作
document.getElementById("snap").addEventListener("click", function() {
context.drawImage(video, 0, 0, 640, 480);
});
</script>
</HEAD>
<BODY>
<!--
理想情况下我们应该先判断你的设备上是否
有摄像头或相机，但简单起见，我们在这里直接
写出了HTML标记，而不是用JavaScript先判断
然后动态生成这些标记
-->
<video id="video" width="640" height="480" autoplay></video>
<button id="snap">Snap Photo</button>
<canvas id="canvas" width="640" height="480"></canvas>
</BODY>
</HTML> 相关推荐
wusiye 2020-10-23
表格的现在还是较为常用的一种标签，但不是用来布局，常见处理、显示表格式数据。在HTML网页中，要想创建表格，就需要使用表格相关的标签。<table> <tr> <td>单元格内的文字</td> ...
gufudhn 2020-08-09
nercon 2020-08-01
swiftwwj 2020-07-21
nercon 2020-07-16
饮马天涯 2020-07-05
Lophole 2020-06-28
gufudhn 2020-06-12
csstpeixun 2020-06-11
huzijia 2020-06-09
WebVincent 2020-06-06
行吟阁 2020-05-30
qsdnet我想学编程 2020-05-26
gufudhn 2020-05-25
qsdnet我想学编程 2020-05-19
suixinsuoyu 2020-05-15
HSdiana 2020-05-15
PioneerFan 2020-05-15