js登录与注册验证

来源:互联网 发布:淘宝情趣内衣晒图 编辑:程序博客网 时间:2024/05/04 10:34

经常写js验证,感觉很麻烦,这次就把他整理贴出来,以后可以直接用了。具体介绍这里不罗嗦了,直接贴代码,相信大家都能理解代码的含义

登录验证:

Jsp页面代码:

<form action="userLogin.action" method="post" onsubmit="return login();" id="loginForm"><h3>用户登录</h3><br /> 用 户 名:<input type="text" name="user.username" id="uName" style="height: 30px;width: 220px;font-size: 20px;" /><br /><br /> 密    码:<input type="password" name="user.password" id="uPass" style="height: 30px;width: 220px;font-size: 20px;" /><br /><br /> <input type="submit" value="登录" style="height: 30px;width: 60px;font-size: 20px;" />                    <input type="reset" value="重置" style="height: 30px;width: 60px;font-size: 20px;" /> </form>
js验证代码:

function login() {// console.info("点击了登录");var userName = $("#uName").val();// console.info(userName)var userPass = $("#uPass").val();// console.info(userPass);if (userName == "" || userName == null) {alert("用户名不能为空");return false;} else if (userPass == "" || userPass == null) {alert("密码不能为空");return false;} else {return true;}}


注册验证:

JSP页面代码:

<span style="white-space:pre"></span><form action="userRegister.action" method="post" onsubmit="return register();"><h3>用户注册</h3><table><tr><td style="text-align: right;width: 200px;line-height: 50px;">用 户 名<fontcolor="red">*</font>:</td><td><input type="text" name="user.username"onblur="return checkname()" id="uName"style="width: 220px;font-size: 16px;" /></td><td id="namets"style="width: 150px;height:40px;text-align: left;font-size: 12px;"></td></tr><tr><td style="text-align: right;line-height: 50px;">密    码<fontcolor="red">*</font>:</td><td><input type="password" id="uPass" name="user.password"onblur="return checkpass();"style="width: 220px;font-size: 16px;" /></td><td id="passts"style="width: 150px;text-align: left;font-size: 12px;"></td></tr><tr><td style="text-align: right;line-height: 50px;">确认密码<fontcolor="red">*</font>:</td><td><input type="password" name="" id="uRPass"onblur="return checkrpass();"style="width: 220px;font-size: 16px;" /></td><td id="passrts"style="width: 150px;text-align: left;font-size: 12px;"></td></tr><tr><td style="text-align: right;line-height: 50px;">邮    箱<fontcolor="red">*</font>:</td><td><input type="text" name="user.email" id="uEmail"onblur="return checkemail();"style="width: 220px;font-size: 16px;" /></td><td id="emailts"style="width: 150px;text-align: left;font-size: 12px;"></td></tr><tr><td></td><td style="text-align: center;line-height: 55px;width:220px"><inputtype="submit" value="注册"style="width: 60px;font-size: 16px;" />         <inputtype="reset" value="重置"style="width: 60px;font-size: 16px;" /></td></tr></table></form>

js验证代码:

function register() {if(!checkname()){return false;}else if (!checkpass()) {return false;} else if(!checkemail()){return false;} return true;}

function checkname(){var name = document.getElementById("uName").value;var ts = document.getElementById("namets");if(name.length<3|| name.length>15){    ts.innerHTML ="用户名长度须在3-15之间!";    ts.style.color="red";    return false;}$.post("checkUserName.action", {" userName": name },function(data){var d = $.parseJSON(data);//console.log(d.success);if(d.success!=true){ts.innerHTML ='用户名已存在!';ts.style.color='red'; return true;}});ts.innerHTML ='用户名可以使用!';ts.style.color='green';return true;}function checkpass(){var userPass = $("#uPass").val();var pts = document.getElementById("passts");if(userPass.length<6 || userPass.length >15){pts.innerHTML ="密码长度须在6-15之间!";pts.style.color="red";    return false;}pts.innerHTML ="密码可以使用!";pts.style.color="green";return true;}function checkrpass(){var userPass = $("#uPass").val();var userRPass = $("#uRPass").val();var prts =  document.getElementById("passrts");if (userPass != userRPass) {prts.innerHTML="两次密码输入不一致!";prts.style.color="red";return false;}prts.innerHTML ="输入一致!";prts.style.color="green";return true;}function checkemail(){var userEmail = $("#uEmail").val();var ets = document.getElementById("emailts");if(!isEmail(userEmail)){ets.innerHTML ="邮箱格式不正确!";ets.style.color="red";return false;} ets.innerHTML ="邮箱可以使用!";ets.style.color="green";return true;}function isEmail(str){    var reg = /[a-z0-9-]{1,30}@[a-z0-9-]{1,65}.[a-z]{3}/;    return reg.test(str);}



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