通过Javascript调用微软认知服务情感检测接口的两种实现方式

这是今天在黑客松现场写的代码。我们的项目需要调用认知服务的情感识别接口。官方提供了一种方式,就是从一个远程图片进行识别。我另外写了一个从本地文件读取并上传进行识别的例子。

官方文档,请参考 https://docs.azure.cn/zh-cn/cognitive-services/emotion/quickstarts/javascript

第一种方式,使用远程的图片文件

<!DOCTYPE html>
<html>
<head>
     <title></title>

    <script src=”Scripts/jquery-3.2.1.min.js”></script>
     <script type=”text/javascript”>
         $(function () {
             $(“#test”).click(function () {
                 var params = {
                     // Request parameters
                 };
                 $.ajax({
                     url: “https://api.cognitive.azure.cn/emotion/v1.0/recognize” + $.param(params),
                     beforeSend: function (xhrObj) {
                         // Request headers
                         xhrObj.setRequestHeader(“Content-Type”, “application/json”);

                        // NOTE: Replace the “Ocp-Apim-Subscription-Key” value with a valid subscription key.
                         xhrObj.setRequestHeader(“Ocp-Apim-Subscription-Key”, “换成你的key”);
                     },
                     type: “POST”,
                     // Request body
                     data: ‘{“url”: “https://tse3.mm.bing.net/th?id=OIP.4M-jZG7HnQUpUKJ0wowq7QDrEs&pid=1.7″}’,
                 })
                     .done(function (data) {
                         console.log(data)
                     })
                     .fail(function () {
                         alert(“error”);
                     });
             });
         });</script>
</head>
<body>
     <button id=”test”>测试</button>
</body>
</html>

第二种方式,直接使用本地文件,读取二进制上传

<!DOCTYPE html>
<html lang=”en”>
<head>
     <meta charset=”utf-8″>
     <title>File Emotion detecting</title>

    <link rel=”stylesheet” href=”style.css”>
</head>
<body>
     <div id=”page-wrapper”>

        <h1>Text File Reader</h1>
         <div>
             Select a text file:
             <input type=”file” id=”fileInput”>
         </div>
         <pre id=”fileDisplayArea”></pre>

    </div>
     <script src=”Scripts/jquery-3.2.1.min.js”></script>
     <script>
         window.onload = function () {
             var fileInput = document.getElementById(‘fileInput’);
             var fileDisplayArea = document.getElementById(‘fileDisplayArea’);

            fileInput.addEventListener(‘change’, function (e) {
                 // Put the rest of the demo code here.
                 var file = fileInput.files[0];
                 var textType = /image.*/;
                 if (file.type.match(textType)) {
                     var reader = new FileReader();

                    reader.onload = function (e) {
                         fileDisplayArea.innerText = reader.result;

                        var params = {
                             // Request parameters
                         };

                        $.ajax({
                             url: “https://api.cognitive.azure.cn/emotion/v1.0/recognize?” + $.param(params),
                             beforeSend: function (xhrObj) {
                                 xhrObj.setRequestHeader(“Content-Type”, “application/octet-stream”);
                                 xhrObj.setRequestHeader(“Ocp-Apim-Subscription-Key”, “换成你的key”);
                             },
                             type: “POST”,
                             data: reader.result,
                             processData: false
                         })
                             .done(function (data) {
                                 alert(“success”);
                             })
                             .fail(function () {
                                 alert(“error”);
                             });
                     }

                    reader.readAsArrayBuffer(file);
                 }
                 else {
                     fileDisplayArea.innerText = “File not supported!”;
                 }
             });
         }
     </script>
</body>
</html>

posted on 2017-12-16 14:44 陈希章 阅读() 评论() 编辑 收藏

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