<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>表单验证</title>
//为了使页面不是那么突兀，特地导入了这俩个bootstrap框架相关的包
<link rel="stylesheet" type="text/css" href="css/bootstrap-3.3.7-dist/css/bootstrap.css"/>
<link rel="stylesheet" type="text/css" href="css/bootstrap-3.3.7-dist/js/bootstrap.js"/>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-4 col-lg-4 "></div>
<div class="col-xs-12 col-sm-12 col-md-4 col-lg-4 ">
<h3 style="font-family: youyuan;color: blue;text-align: center"><strong>表单验证</strong></h3>
<hr/>
<form name="form">
<span style="color: blue">用户名</span>
<input type="text" id="name" name="name" required="required" class="form-control" placeholder="用户名（6-14位）"/>
<span id="namespan" style="color: red"></span>
<br/>
<span style="color: blue">密码</span>
<input type="password" id="pwd"name="pwd" required="required" class="form-control"οnclick="checkname()" placeholder="密码（4-16位）"/>
<span id="pwdspan"style="color: red"></span>
<br/>
<span style="color: blue">确认密码</span>
<input type="password" id="repwd"name="repwd" required="required" class="form-control"οnclick="checkpassword()" placeholder="确认密码"/>
<span id="repwdspan"style="color: red"></span>
<br/>
<span style="color: blue">邮箱</span>
<input type="email" id="email" required="required" class="form-control"οnclick="same()" placeholder="邮箱"/>
<span id="emailspan" style="color: red"></span>
<br/>
<span style="color: blue">身份证号</span>
<input type="text"name="number" id="id" required="required" class="form-control"οnclick="checkemail()" placeholder="身份证号"/>
<span id="idspan" style="color: red"></span>
<br/>
<span style="color: blue">出生日期</span>
<input name="sDate" type="text" id="sDate" required="required" class="form-control"οnclick="check(form)" placeholder="出生日期"/>
<span id="datespan" style="color: red"></span>
<br/>
<input type="button" value="检查出生日期" class="btn btn-primary"οnclick="checkdate(form)"/>
<input type="reset" value="重置" class="btn btn-primary"/>
<input type="submit" value="提交" class="btn btn-primary"/>
</form>
</div>
<div class="col-xs-12 col-sm-12 col-md-4 col-lg-4 ">
</div>
</div>
</div>
</body>
</html>
<script language="javascript">
//检验用户名格式
function checkname(){
var name1 = document.form.name.value;
if (name1 == "") {
document.getElementById("namespan").innerHTML = "用户名不能为空！";
document.form.name.focus();
return false;
}
if (name1.length < 6 || name1.length > 14) {
document.getElementById("namespan").innerHTML = "格式错误，长度6-14个字符";
document.form.name.focus();
// document.form.name.select();
return false;
}
var charname1 = name1.toLowerCase();
for (var i = 0; i < name1.length; i++) {
var charname = charname1.charAt(i);
if (!(charname >= 0 && charname <= 9) && (!(charname >= 'a' && charname <= 'z')) && (charname != '_')) {
document.getElementById("namespan").innerHTML = "用户名包含非法字符";
// document.form.name.select();
document.form.name.focus();
return false;
}
}
document.getElementById("namespan").innerHTML = "用户名正确";
return true;
}
//检查密码格式
function checkpassword(){
var div = document.getElementById("pwdspan");
div.innerHTML = "";
var password = document.form.pwd.value;
if (password == "") {
div.innerHTML = "密码不能为空";
document.form.pwd.focus();
return false;
}
if (password.length < 4 || password.length > 16) {
div.innerHTML = "格式错误，密码长度为4-16位";
document.form.pwd.select();
return false;
}
div.innerHTML = "密码格式正确";
return true;
}
//检查密码是否一样
function same() {
var d=document.getElementById("repwdspan");
d.innerHTML="";
var pValue=document.getElementById("pwd").value;
if(pValue==""){
//注意空的表示方法
d.innerHTML="密码不能为空";
return false;
}
/** 校验确认密码*/
var rpValue=document.getElementById("repwd").value;
if(rpValue!=pValue){
d.innerHTML="两次密码输入不一致";
return false;
}
d.innerHTML="输入一致";
return true;
}
//检验邮箱
function checkemail() {
var d=document.getElementById("emailspan");
d.innerHTML="";
var eValue=document.getElementById("email").value;
if(!/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/.test(eValue)){
d.innerHTML="邮箱格式错误！";
}else
d.innerHTML="邮箱格式正确"
}
// 检验身份证号格式
function checkeNO(NO){
var str=NO;
//在JavaScript中，正则表达式只能使用"/"开头和结束，不能使用双引号
var Expression=/^\d{17}[\d|X]$|^\d{15}$/;
var objExp=new RegExp(Expression);
if(objExp.test(str)==true){
return true;
}else{
return false;
}
}
function check(form){
var d=document.getElementById("idspan");
d.innerHTML="";
if(form.number.value==""){
d.innerHTML="请输入身份证号码!";
form.number.focus();return;
}
if(!checkeNO(form.number.value)){
d.innerHTML="身份证号码格式错误!!";
form.number.focus();
return;
}
if(checkeNO(form.number.value)){
d.innerHTML="身份证号码格式正确!!";
}
}
//判断输入的日期是否正确
function CheckDate(INDate){
if (INDate==""){return true;}
if(INDate.indexOf('-',0)!=-1){separate="-"}
else{
if(INDate.indexOf('/',0)!=-1){separate="/"}
else {return true;}
}
area=INDate.indexOf(separate,0)
//获取年份
subYY=INDate.substr(0,area)
if(isNaN(subYY) || subYY<=0){
return true;
}
//转换月份
subMM=INDate.substr(area+1,INDate.indexOf(separate,area+1)-(area+1))
if(isNaN(subMM) || subMM<=0){
return true;
}
if(subMM.length<2){subMM="0"+subMM}
//转换日
area=INDate.lastIndexOf(separate)
subDD=INDate.substr(area+1,INDate.length-area-1)
if(isNaN(subDD) || subDD<=0){
return true;
}
if(eval(subDD)<10){subDD="0"+eval(subDD)}
NewDate=subYY+"-"+subMM+"-"+subDD
if(NewDate.length!=10){return true;}
if(NewDate.substr(4,1)!="-"){return true;}
if(NewDate.substr(7,1)!="-"){return true;}
var MM=NewDate.substr(5,2);
var DD=NewDate.substr(8,2);
if((subYY%4==0 && subYY%100!=0)||subYY%400==0){ //判断是否为闰年
if(parseInt(MM)==2){
if(DD>29){return true;}
}
}else{
if(parseInt(MM)==2){
if(DD>28){return true;}
}
}
var mm=new Array(1,3,5,7,8,10,12); //判断每月中的最大天数
for(i=0;i< mm.length;i++){
if (parseInt(MM) == mm[i]){
if(parseInt(DD)>31){
return true;
}else{
return false;
}
}
}
if(parseInt(DD)>30){return true;}
if(parseInt(MM)>12){return true;}
return false;
}
function checkdate(myform){
var d=document.getElementById("datespan");
d.innerHTML="";
if(myform.sDate.value==""){
d.innerHTML="请输入日期";
myform.sDate.focus();return;
}
if(CheckDate(myform.sDate.value)){
d.innerHTML="您输入的日期不正确！\n 请注意日期格式（如：2007/07/17或2007-07-17）以及二月是否为闰年！";
myform.sDate.focus();return;
}
if(!CheckDate(myform.sDate.value)){
d.innerHTML="您输入的日期是正确的";
}
}
</script>
