使用js实现http自动跳转到https

在页面中加入下面代码：

<script type="text/javascript">
    var targetProtocol = "https:";
    if (window.location.protocol != targetProtocol)
    {
        window.location.href = targetProtocol +  window.location.href.substring(window.location.protocol.length);
    }
</script>