PC端 H5實現拍照並上傳

最後更新：2016-08-30 來源：互聯網

上載者：User

創建阿里雲帳戶，並獲得超過 40 款產品的免費試用版；而企業帳戶則可以享有總值 $1200 的免費試用版。立即註冊！

標籤：

<!DOCTYPE HTML>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="black" />
    <meta content="telephone=no" name="format-detection" />
    <title>測試</title>
</head>
<body>
<video id="video" width="320" height="240" autoplay></video>
<button id="snap">拍攝</button>
<canvas id="canvas" width="320" height="240"></canvas>
<script>
    window.addEventListener("DOMContentLoaded", function() {
        var canvas = document.getElementById("canvas"),//調用canvas介面
                context = canvas.getContext("2d"),
                video = document.getElementById("video"),
                videoObj = { "video": true },
                errBack = function(error) {//錯誤處理
                    console.log("Video capture error: ", error.code);
                };
        if(navigator.getUserMedia) {//調用html5拍攝介面
            navigator.getUserMedia(videoObj, function(stream) {
                video.src = stream;//攝像機屬於視頻流，所以當然要輸出到html5的video標籤中了
                video.play();//開始播放
            }, errBack);
        } else if(navigator.webkitGetUserMedia) { //WebKit核心調用html5拍攝介面
            navigator.webkitGetUserMedia(videoObj, function(stream){
                video.src = window.webkitURL.createObjectURL(stream);//同上
                video.play();//同上
            }, errBack);
        }
        else if(navigator.mozGetUserMedia) { //moz核心調用html5拍攝介面
            navigator.mozGetUserMedia(videoObj, function(stream){
                video.src = window.URL.createObjectURL(stream);//同上
                video.play();//同上
            }, errBack);
        }
    }, false);

    document.getElementById("snap")
            .addEventListener("click", function() {//擷取拍照按鈕綁定事件
                var canvans = document.getElementById("canvas"),//調用canvas介面
                        context = canvas.getContext("2d");
                context.drawImage(video, 0, 0, 640, 480);//調用canvas介面的drawImage方法繪製當前video標籤中的靜態圖片，其實就是

                var imgData = canvans.toDataURL();//擷取圖片的base64格式的資料
                //這裡就可以寫上傳伺服器代碼了
            });
</script>
</body>
</html>

PC端 H5實現拍照並上傳

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More

PC端 H5實現拍照並上傳

聯繫我們

A Free Trial That Lets You Build Big!

Sales Support

After-Sales Support