前端禁用f12,右键菜单等

说明: 如果使用vue或者是react项目的话,将代码写在生命周期函数中,组件加载完毕的生命周期中,如果是使用的原生的就写在script标签中

禁用f12

document.onkeydown = function () {
    if (window.event && window.event.keyCode == 123) {
        alert("F12被禁用");
        event.keyCode = 0;
        event.returnValue = false;
    }
    if (window.event && window.event.keyCode == 13) {
        window.event.keyCode = 505;
    }
    if (window.event && window.event.keyCode == 8) {
        alert(str + "\n请使用Del键进行字符的删除操作！");
        window.event.returnValue = false;
    }
}

屏蔽右键菜单

document.oncontextmenu = function (event) {
 if (window.event) {
        event = window.event;
    }
    try {
        var the = event.srcElement;
        if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
            return false;
        }
        return true;
    } catch (e) {
        return false;
    }
}

屏蔽粘贴

document.onpaste = function (event) {
    if (window.event) {
        event = window.event;
    }
    try {
        var the = event.srcElement;
        if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
            return false;
        }
        return true;
    } catch (e) {
        return false;
    }
}

屏蔽复制

document.oncopy = function (event) {
   if (window.event) {
       event = window.event;
   }
   try {
       var the = event.srcElement;
       if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
           return false;
       }
       return true;
   } catch (e) {
       return false;
   }
}

屏蔽剪切

document.oncut = function (event) {
    if (window.event) {
        event = window.event;
    }
    try {
        var the = event.srcElement;
        if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
            return false;
        }
        return true;
    } catch (e) {
        return false;
    }
}

屏蔽选中

document.onselectstart = function (event) {
    if (window.event) {
        event = window.event;
    }
    try {
        var the = event.srcElement;
        if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")) {
            return false;
        }
        return true;
    } catch (e) {
        return false;
    }
}

来源：CSDN

作者：蓝枫秋千

链接：https://blog.csdn.net/qq_43382853/article/details/104523249

标签

event

f12