JavaScript禁止頁面操作的示例代碼

2019-11-20 21:26:55

字體：大中小

來源：轉載

供稿：網友

單的JS禁止頁面右鍵菜單--避免網站信息被盜用

<script type="text/javascript">
  function block(oEvent){
   if(window.event)
    oEvent=window.event;
   if(oEvent.button==2)
    alert("鼠標右鍵不可用");
  }
  document.onmousedown=block;
</script>

網頁上禁止復制主要靠JavaScript來實現。

<BODY oncontextmenu="return false" onselectstart="return false"
ondragstart="return false" onbeforecopy="return false" oncopy=document.selection.empty() onselect=document.selection.empty()>
-----------------------------------------------
防止復制的js
-----------------------------------------------

復制代碼代碼如下:

<SCRIPT language=JavaScript1.2>
function disableselect(e){
return false}
function reEnable(){return true
}
file://if IE4+
document.onselectstart=new Function ("return false")
file://if NS6
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}
</SCRIPT>
<SCRIPT language=JavaScript type=text/JavaScript>
<!--
function MM_reloadPage(init) {    //reloads the window if Nav4 resized
    if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
      document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
    else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
//-->
</SCRIPT>

-------------------------------------------------------
防止下載的js
-------------------------------------------------------
<noscript><iframe src=""></iframe></noscript>
--------------------------------------------------------

下面是防止右鍵的js:

復制代碼代碼如下:

<!--
if (window.Event)
document.captureEvents(Event.MOUSEUP);
function nocontextmenu() {
event.cancelBubble = true
event.returnValue = false;
return false;
}
function norightclick(e) {
if (window.Event){
   if (e.which == 2 || e.which == 3)
   return false;
}else{
   if (event.button == 2 || event.button == 3){
       event.cancelBubble = true
    event.returnValue = false;
       return false;
    }
}
}

document.oncontextmenu = nocontextmenu; // for IE5+
document.onmousedown = norightclick; // for all others
//-->
</script>

<title>CSS禁止選擇和復制</title>
<meta http-equiv="content-Type" content="text/html;charset=gb2312">
<style>
body{
-moz-user-select:none;
hutia:expression(this.onselectstart=function(){return(false)});
}
</style>
</head>
<body>
這里是網頁內容，試試您能不能復制？
</body>
</html>

應用實例：

復制代碼代碼如下:

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>JS控制頁面</title>
    <script language="javascript" type="text/javascript">
        //禁止用戶使用郵件（隱藏右鍵菜單）
        document.oncontextmenu = function forbidRightKey() {
            window.event.returnValue = false;
         }
         //禁止用戶使用郵件（提示用戶禁用右鍵）
         function block() {
             var oEvent;
             if (window.event)
                 oEvent = window.event;
             if (oEvent.button == 2)
                 alert("鼠標右鍵不可用");
         }
         document.onmousedown = block;

        //當用戶按鍵AltF4的時候，提示關閉窗口信息
        function altF4() {
            if (window.event.altKey && window.event.keyCode == 115) {
                  window.close();
            }
        }
        //alt 鼠標左鍵組成快捷鍵選中文本框中內容調用方式<body onkeydown="altF4();" >
        function getTxtSelect(eventControl) {
            if (eventControl.altKey) {
                document.getElementById("txt1").select();
            }
        }

        function clearTxtByInput() {
            document.getElementById("txtContent").value = "";
        }

        //禁止復制網頁內容 <body oncopy="forbidCopy();">
         function forbidCopy() {
            window.event.returnValue = false;
            window.clipboardData.setData("Text", "");
            alert("禁止復制網頁內容！");
        }

        //設置復制內容附加本網站的URL
        function SetCopyContent() {
            window.event.returnValue = false;
            var content = document.title + "/r/n";
            content += document.getElementById("txt1").value + "/r/n";
            content += "本資源來自 " + this.location.href;
            window.clipboardData.setData('Text', content);
            alert("復制成功，請粘貼到你的QQ/MSN上推薦給你的好友");
        }

//禁止刷新F5 和Ctrl+F5
function ForbidFreshPage() {

            if ((window.event.ctrlKey && window.event.keyCode == 116) || window.event.keyCode == 116) {
               window.event.keyCode = 0;
               window.event.returnValue = false;
           }
        }
        document.onkeydown = ForbidFreshPage;
        //屏蔽JS錯誤
        function killErrors() {
            return true;
        }
        window.onerror = killErrors;

    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <input id="txt1" type="text" value="Hello World!" onclick="getTxtSelect(event)"/>
        <input type="button" value="復制文本框中的值" onclick="SetCopyContent();" />
        <input id="txtContent" value="輸入搜索條件" style="color:Aqua" onclick="clearTxtByInput();" onblur="FillTxtByInput();" />
        <p>content</p>

    </div>
    </form>
</body>
</html>