jQuery-webcam使用

基本页面

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <title>webcam</title>
        <style type="text/css">
            #webcam {
                width: auto;
                height: auto;
                float: left;
            }
            #base64image {
                display: block;
                width: 320px;
                height: 240px;
            }
        </style>

        <!-- 基本的jquery引用，1.5版本以上 -->
        <script src="jquery.min.js"></script>

        <!-- webcam插件引用 -->
        <script src="jquery.webcam.js"></script>

    </head>

    <body>

        <div id="webcam"></div>
        <input id="snapBtn" type="button" value="拍照" />
        <img id="base64image" src='' />

        <script type="text/javascript">
            var pos = 0,
                ctx = null,
                image = [];
            var w = 320;
            var h = 240;
            $(document).ready(function() {

                jQuery("#webcam").webcam({

                    width: 320,
                    height: 240,
                    mode: "callback",
                    swffile: "jscam_canvas_only.swf", // 这里引入swf文件，注意路径
                    onTick: function(remain) {},
                    onSave: function(data) {

                        var col = data.split(";");
                        var img = image;

                        for(var i = 0; i < 320; i++) {
                            var tmp = parseInt(col[i]);
                            img.data[pos + 0] = (tmp >> 16) & 0xff;
                            img.data[pos + 1] = (tmp >> 8) & 0xff;
                            img.data[pos + 2] = tmp & 0xff;
                            img.data[pos + 3] = 0xff;
                            pos += 4;
                        }

                        if(pos >= 4 * 320 * 240) {
                        
                            // 将图片显示到canvas中
                            ctx.putImageData(img, 0, 0);
                            
                            // 取得图片的base64码
                            var base64 = canvas.toDataURL("image/png");                    

                            // 将图片base64码设置给img
                            var base64image = document.getElementById('base64image');                                                              
                            base64image.setAttribute('src', base64);

                            pos = 0;

                        }

                    },

                    onCapture: function() {
                        webcam.save();
                        // Show a flash for example
                    },

                    debug: function(type, string) {
                        console.log('type:' + type + ',string:' + string);
                        // Write debug information to console.log() or a div
                    },

                    onLoad: function() {
                        // Page load
                    }

                });
                window.addEventListener("load", function() {

                    var canvas = document.getElementById("canvas");

                    if(canvas.getContext) {
                        ctx = canvas.getContext("2d");
                        ctx.clearRect(0, 0, 320, 240);

                        var img = new Image();
                        img.onload = function() {
                            ctx.drawImage(img, 129, 89);
                        }
                        image = ctx.getImageData(0, 0, 320, 240);
                    }

                }, false);

                $('#snapBtn').on('click', function() {
                    webcam.capture();
                });
            });
        </script>
    </body>

</html>

,可是运行的时候,一直会报错

error: Flash movie not yet registered!

真的是经过一番查找,原来是这个东西必须得在服务器环境下运行.!!!!

于是放到tomcat服务器下,立马就OK了.

posted on 2019-08-12 16:08  手撕高达的村长  阅读(2222)  评论(0)    收藏  举报

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