test.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>上传</title>
<script type="text/javascript" src="script/jquery-3.1.1.min.js"></script>
</head>
<body>
    <form id="form1" action="http://47.75.95.33/websrc/web/webupload/type.htm" target="frame1" method="post" enctype="multipart/form-data">
        <input type="file" name="file"> 
        <input type="text"  name="type" value="cz">
        <input type="button" value="上传" onclick="upload()">
    </form>
    <iframe name="frame1" frameborder="0" height="40"></iframe>
    <!-- 其实我们可以把iframe标签隐藏掉 -->
    <script type="text/javascript">
        function upload() {
            $("#form1").submit();
            var t = setInterval(function() {
                //获取iframe标签里body元素里的文字。即服务器响应过来的"上传成功"或"上传失败"
                var word = $("iframe[name='frame1']").contents().find("body").text();
                if (word != "") {
                    alert(word);        //弹窗提示是否上传成功
                    clearInterval(t);   //清除定时器
                }
            }, 1000);
        }
    </script>
</body>
</html>