用JS和JQuery实现的效果是一样的。
HTML代码
<legend> 请填写注册信息</legend>
<form action="index.html" method="post">
<table style="text-align: right;">
<tr>
<td>用户名：</td>
<td><input type="text" name="userName" placeholder="由英文字母和数字组成的4-16位字符，以字母开头">
</td>
</tr>
<tr>
<td>昵称：</td>
<td><input type="text" name="nickName" placeholder="由2-6个汉字组成">
</td>
</tr>
<tr>
<td>邮箱：</td>
<td><input type="text" name="email" placeholder="邮箱账号@域名。如good@tom.com、whj@sina.com.cn">
</td>
</tr>
<tr>
<td>密码：</td>
<td><input type="password" name="pwd" placeholder="由英文字母和数字组成的4-10位字符">
</td>
</tr>
<tr>
<td>确认密码：</td>
<td><input type="password" name="pwd2" placeholder="确认密码">
</td>
</tr>
<tr>
<td>手机号码：</td>
<td><input type="text" name="phone" placeholder="手机号由11位数字组成，且以13,15,18开头">
</td>
</tr>
<tr>
<td>出生日期：</td>
<td><input type="text" name="date" placeholder="出生日期在1990-2009之间">
</tr>
<tr>
<td colspan="2" align="left"><input type="button" name="submit" value="提交"></td>
</tr>
</table>
</form>
</fieldset>
CSS样式
body {
text-align: center;
padding: 0;
margin: 0;
}
fieldset {
width: 800px;
}
table tr td ~ td {
text-align: left;
width: 600px;
}
JS代码
//验证用户名
function check_userName() {
var userName = document.getElementById("name").value;
var regName = /[a-zA-Z]\w{4,16}/
if (userName == "" || userName.trim() == "") {
document.getElementById("err_name").innerHTML = "请输入用户名";
return false;
} else if (!regName.test(userName)) {
document.getElementById("err_name").innerHTML = "由英文字母和数字组成的4-16位字符，以字母开头";
return false;
} else {
document.getElementById("err_name").innerHTML = "ok!!!";
return true;
}
}
//验证昵称
function check_nickName() {
var nickName = document.getElementById("nick").value;
var regName = /[\u4e00-\u9fa5]{2,6}/
if (nickName == "" || nickName.trim() == "") {
document.getElementById("err_nick").innerHTML = "请输入昵称";
return false;
} else if (!regName.test(nickName)) {
document.getElementById("err_nick").innerHTML = "由2-6个汉字组成";
return false;
} else {
document.getElementById("err_nick").innerHTML = "ok!!!";
return true;
}
}
//验证邮箱
function check_email() {
var email = document.getElementById("email").value;
var regEmail = /^\w+@\w+((\.\w+)+)$/;
if (email == "" || email.trim() == "") {
document.getElementById("err_email").innerHTML = "请输入邮箱";
return false;
} else if (!regEmail.test(email)) {
document.getElementById("err_email").innerHTML = "邮箱账号@域名。如good@tom.com、whj@sina.com.cn";
return false;
} else {
document.getElementById("err_email").innerHTML = "ok!!!";
return true;
}
}
//验证密码
function check_pwd() {
var pwd = document.getElementById("pwd").value;
var regPwd = /^\w{4,10}$/;
if (pwd == "" || pwd.trim() == "") {
document.getElementById("err_pwd").innerHTML = "请输入密码";
return false;
} else if (!regPwd.test(pwd)) {
document.getElementById("err_pwd").innerHTML = "格式错误";
return false;
} else {
document.getElementById("err_pwd").innerHTML = "ok!!!";
return true;
}
}
//确认密码
function check_pwd2() {
var pwd = document.getElementById("pwd").value;
var pwd2 = document.getElementById("pwd2").value;
if (pwd2 == "" || pwd2.trim() == "") {
document.getElementById("err_pwd2").innerHTML = "请输入密码";
return false;
} else if (!pwd2.equals(pwd)) {
document.getElementById("err_pwd2").innerHTML = "两次输入密码不一致";
return false;
} else {
document.getElementById("err_pwd2").innerHTML = "ok!!!";
return true;
}
}
//验证手机号
function check_phone() {
var phone = document.getElementById("phone").value;
var regPhone = /[13,15,18]\d{9}/;
if (phone == "" || phone.trim() == "") {
document.getElementById("err_phone").innerHTML = "请输入手机号";
return false;
} else if (!regPhone.test(phone)) {
document.getElementById("err_phone").innerHTML = "手机号由11位数字组成，且以13,15,18开头";
return false;
} else {
document.getElementById("err_phone").innerHTML = "ok!!!";
return true;
}
}
//验证时间
function check_date() {
var birthday = document.getElementById("birthday").value;
var regDate = /[13,15,18]\d{9}/;
if (birthday == "" || birthday.trim() == "") {
document.getElementById("err_date").innerHTML = "请输入日期";
return false;
} else if (!regDate.test(birthday)) {
document.getElementById("err_date").innerHTML = "出生日期在1990-2009之间";
return false;
} else {
document.getElementById("err_date").innerHTML = "ok!!!";
return true;
}
}
Jquery代码
$(function () {
var errMsg;
$.each($("input"), function (i, val) {
$(val).blur(function () {
if ($(val).attr("name") == "userName") {
$(".nameMsg").remove();
var userName = val.value;
var regName = /[a-zA-Z]\w{4,16}/
if (userName == "" || userName.trim() == "") {
errMsg = "<span class='nameMsg' style='color:red;'>用户名不能为空</span>";
} else if (!regName.test(userName)) {
errMsg = "<span class='nameMsg' style='color:red;'>由英文字母和数字组成的4-16位字符，以字母开头</span>";
} else {
errMsg = "<span class='nameMsg' style='color:red;'>OK！</span>";
}
$(this).parent().append(errMsg);
} else if ($(val).attr("name") == "nickName") {
$(".nickMsg").remove();
var nickName = val.value;
var regName = /[\u4e00-\u9fa5]{2,6}/
if (nickName == "" || nickName.trim() == "") {
errMsg = "<span class='nickMsg' style='color:red;'>昵称不能为空</span>";
} else if (!regName.test(nickName)) {
errMsg = "<span class='nickMsg' style='color:red;'>由2-6个汉字组成</span>";
} else {
errMsg = "<span class='nickMsg' style='color:red;'>OK！</span>";
}
$(this).parent().append(errMsg);
} else if ($(val).attr("name") == "email") {
$(".emailMsg").remove();
var email = val.value;
var regEmail = /^\w+@\w+((\.\w+)+)$/;
if (email == "" || email.trim() == "") {
errMsg = "<span class='emailMsg' style='color:red;'>邮箱不能为空</span>";
} else if (!regEmail.test(email)) {
errMsg = "<span class='emailMsg' style='color:red;'>邮箱账号@域名。如good@tom.com、whj@sina.com.cn</span>";
} else {
errMsg = "<span class='emailMsg' style='color:red;'>OK！</span>";
}
$(this).parent().append(errMsg);
} else if ($(val).attr("name") == "pwd") {
$(".pwdMsg").remove();
var pwd = val.value;
var regPwd = /^\w{4,10}$/;
if (pwd == "" || pwd.trim() == "") {
errMsg = "<span class='pwdMsg' style='color:red;'>密码不能为空</span>";
} else if (!regPwd.test(pwd)) {
errMsg = "<span class='pwdMsg' style='color:red;'>格式错误</span>";
} else {
errMsg = "<span class='pwdMsg' style='color:red;'>OK！</span>";
}
$(this).parent().append(errMsg);
} else if ($(val).attr("name") == "pwd2") {
$(".pwd2Msg").remove();
var pwd2 = val.value;
var pwd = $("input")[3].value;
if (pwd2 == "" || pwd2.trim() == "" || !pwd2.equals(pwd)) {
errMsg = "<span class='pwd2Msg' style='color:red;'>两次输入密码不一致</span>";
} else {
errMsg = "<span class='pwd2Msg' style='color:red;'>OK！</span>";
}
$(this).parent().append(errMsg);
} else if ($(val).attr("name") == "phone") {
$(".phoneMsg").remove();
var phone = val.value;
var regPhone = /[13,15,18]\d{9}/;
if (phone == "" || phone.trim() == "") {
errMsg = "<span class = 'phoneMsg' style = 'color:red;' > 手机号不能为空 < /span>"
} else if (!regPhone.test(phone)) {
errMsg = "<span class = 'phoneMsg' style = 'color:red;' > 格式错误 < /span>"
} else {
errMsg = "<span class = 'phoneMsg' style = 'color:red;' > OK！ < /span>"
}
$(this).parent().append(errMsg);
} else if ($(val).attr("name") == "date") {
$(".dateMsg").remove();
var birthday = val.value;
var regDate = /(199\d|200\d)[-/](0\d|1[0-2])[-/](0\d|[1-2]\d|30|31)/;
if (birthday == "" || birthday.trim() == "") {
errMsg = "<span class='dateMsg' style='color:red;'>请输入生日</span>";
} else if (!regDate.test(birthday)) {
errMsg = "<span class='dateMsg' style='color:red;'>格式错误</span>";
} else {
errMsg = "<span class='dateMsg' style='color:red;'>OK！</span>";
}
$(this).parent().append(errMsg);
}
});
});
});
总结
以上所述是小编给大家介绍的JS+jQuery实现注册信息的验证功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！