function CLASS_CHECK(){
this.pass = true;
this.showAll = true;
this.alert = false;
this.message = "";
this.first = null;
this.cancel = false;
var aUsage = {
"int":"^([+-]?)//d+$", //整数
"int+":"^([+]?)//d+$", //正整数
"int-":"^-//d+$", //负整数
"num":"^([+-]?)//d*//.?//d+$", //数字
"num+":"^([+]?)//d*//.?//d+$", //正数
"num-":"^-//d*//.?//d+$", //负数
"float":"^([+-]?)//d*//.//d+$", //浮点数
"float+":"^([+]?)//d*//.//d+$", //正浮点数
"float-":"^-//d*//.//d+$", //负浮点数
//邮件
"email":"^//w+((-//w+)|(//.//w+))*//@[A-Za-z0-9]+((//.|-)[A-Za-z0-9]+)*//.
[A-Za-z0-9]+$",
"color":"^#[a-fA-F0-9]{6}", //颜色
"url":"^http[s]?://([//w-]+//.)+[//w-]+([//w-./?%&=]*)?$", //联接
"chinese":"^[//u4E00-//u9FA5//uF900-//uFA2D]+$", //仅中文
"ascii":"^[//x00-//xFF]+$", //仅ACSII字符
"zipcode":"^//d{6}$", //邮编
"mobile":"^0{0,1}13[0-9]{9}$", //手机
"ip4":"^/(([0-1]?//d{0,2})|(2[0-5]{0,2}))//.(([0-1]?//d{0,2})|(2[0-5]
{0,2}))//.(([0-1]?//d{0,2})|(2[0-5]{0,2}))//.(([0-1]?//d{0,2})|(2[0-5]
{0,2}))$", //ip地址
"notempty":"^[^ ]+$", //非空
"picture":"(.*)//.(jpg|bmp|gif|ico|pcx|jpeg|tif|png|raw|tga)$", //图片
"rar":"(.*)//.(rar|zip|7zip|tgz)$", //压缩文件
"date":"^//d{4}(//-|///|/.)//d{1,2}//1//d{1,2}$" //日期
};
//缺省消息
var aMessage = {
"int" :"请输入整数", //整数
"int+" :"请输入正整数", //正整数
"int-" :"请输入负整数", //负整数
"num" :"请输入数字", //数字
"num+" :"请输入正数", //正数
"num-" :"请输入负整数", //负数
"float" :"请输入浮点数", //浮点数
"float+":"请输入正浮点数", //正浮点数
"float-":"请输入负浮点数", //负浮点数
"email" :"请输入正确的邮箱地址", //邮件
"color" :"请输入正确的颜色", //颜色
"url" :"请输入正确的连接地址", //联接
"chinese":"请输入中文", //中文
"ascii" :"请输入ascii字符", //仅ACSII字符
"zipcode":"请输入正确的邮政编码", //邮编
"mobile":"请输入正确的手机号码", //手机
"ip4" :"请输入正确的IP地址", //ip地址
"notempty":"不能为空", //非空
"picture":"请选择图片", //图片
"rar" :"请输入压缩文件", //压缩文件
"date" :"请输入正确的日期" //日期
}
var me = this;
me.checkForm = function(oForm){
me.pass = true;
me.message = "";
me.first = null;
if(me.cancel==true){
return true;
}
var els = oForm.elements;
//遍历所有表元素
for(var i=0;i<els.length;i++){
//取得格式
var sUsage = els[i].getAttribute("Usage");
var sReg = "";
//如果设置Usage，则使用内置正则表达式，忽略Exp
if(typeof(sUsage)!="undefined"&&sUsage!=null){
//如果Usage在表达室里找到，则使用内置表达式，无则认为是表达式；表达式可以
是函数；
if(aUsage[sUsage]!=null){
sReg = aUsage[sUsage];
} else {
try {
if(eval（sUsage)==false){
me.pass = false;
if(me.first==null){
me.first = els[i];
}
addMessage(getMessage(els[i]));
if(me.showAll==false){
setFocus(els[i]);
break;
}
}
} catch(e){
alert("表达式[" + sUsage +"]错误:" + e.description)
return false;
}
}
} else {
sReg = els[i].getAttribute("Exp");
}
if(typeof(sReg)!="undefined"&&sReg!=null){
//对于失效状态不验证
if(isDisabled(els[i])==true){
continue;
}
//取得表单的值,用通用取值函数
var sVal = getValue(els[i]);
//字符串->正则表达式,不区分大小写
var reg = new RegExp(sReg,"i");
if(!reg.test(sVal)){
me.pass = false;
if(me.first==null){
me.first = els[i];
}
//alert(reg);
//验证不通过,弹出提示warning
var sTip = getMessage(els[i]);
if(sTip.length==0&&typeof(sUsage)!="undefined"&&sUsage!=null&&aMessage
[sUsage]!=null){
sTip = aMessage[sUsage];
}
addMessage(sTip);
if(me.showAll==false){
//该表单元素取得焦点,用通用返回函数
setFocus(els[i]);
break;
}
}
}
}
if(me.pass==false){
showMessage();
if(me.first!=null&&me.showAll==true){
setFocus(me.first);
}
}
return me.pass;
}
/*
* 添加错误信息
*/
function addMessage(msg){
if(me.alert==true){
me.message += msg + "/n";
} else {
me.message += msg + "<br>";
}
}
/*
* 显示错误
*/
function getMessage(els){
var sTip = els.getAttribute("tip");
if(typeof(sTip)!="undefined"&&sTip!=null){
return sTip;
} else {
return "";
}
}
/*
* 显示错误
*/
function showMessage(){
//外接显示错误函数
if(typeof(me.showMessageEx)=="function"){
return me.showMessageEx(me.message);
}
if(me.alert==true){
alert(me.message);
} else {
var divTip;
divTip = document.getElementById("divErrorMessage");
try {
if(typeof(divTip)=="undefined"||divTip==null){
divTip = document.createElement("div");
divTip.id = "divErrorMessage";
divTip.name = "divErrorMessage";
divTip.style.color = "red";
document.body.appendChild(divTip);
}
divTip.innerHTML = me.message;
}catch(e){}
}
}
/*
* 获得元素是否失效（失效的元素不做判断）
*/
function isDisabled(el){
//对于radio,checkbox元素，只要其中有一个非失效元素就验证
if(el.type=="radio"||el.type=="checkbox"){
//取得第一个元素的name,搜索这个元素组
var tmpels = document.getElementsByName(el.name);
for(var i=0;i<tmpels.length;i++){
if(tmpels[i].disabled==false){
return false;
}
}
return true;
}else{
return el.disabled;
}
}
/*
* 取得对象的值（对于单选多选框把其选择的个数作为需要验证的值）
*/
function getValue(el){
//取得表单元素的类型
var sType = el.type;
switch(sType){
//文本输入框,直接取值el.value
case "text":
case "hidden":
case "password":
case "file":
case "textarea": return el.value;
//单多下拉菜单,遍历所有选项取得被选中的个数返回结果"0"表示选中一个，"00"表
示选中两个
case "checkbox":
case "radio": return getRadioValue(el);
case "select-one":
case "select-multiple": return getSelectValue(el);
}
//取得radio,checkbox的选中数,用"0"来表示选中的个数,我们写正则的时候就可以通
过0{1,}来表示选中个数
function getRadioValue(el){
var sValue = "";
//取得第一个元素的name,搜索这个元素组
var tmpels = document.getElementsByName(el.name);
for(var i=0;i<tmpels.length;i++){
if(tmpels[i].checked){
sValue += "0";
}
}
return sValue;
}
//取得select的选中数,用"0"来表示选中的个数,我们写正则的时候就可以通过0{1,}
来表示选中个数
function getSelectValue(el){
var sValue = "";
for(var i=0;i<el.options.length;i++){
//单选下拉框提示选项设置为value=""
if(el.options[i].selected && el.options[i].value!=""){
sValue += "0";
}
}
return sValue;
}
}
/*
* 对没有通过验证的元素设置焦点
*/
function setFocus(el){
//取得表单元素的类型
var sType = el.type;
switch(sType){
//文本输入框,光标定位在文本输入框的末尾
case "text":
case "hidden":
case "password":
case "file":
case "textarea":
try{el.focus();var rng = el.createTextRange(); rng.collapse(false);
rng.select();}catch(e){};
break;
//单多选,第一选项非失效控件取得焦点
case "checkbox":
case "radio":
var els = document.getElementsByName(el.name);
for(var i=0;i<els.length;i++){
if(els[i].disabled == false){
els[i].focus();
break;
}
}
break;
case "select-one":
case "select-multiple":
el.focus();
break;
}
}
//自动绑定到所有form的onsubmit事件
if(window.attachEvent){
window.attachEvent("onload",function()
{
for(var i=0;i<document.forms.length;i++){
var theFrom = document.forms[i];
function mapping(f){
f.attachEvent("onsubmit",function(){return me.checkForm(f);});
}
if(theFrom){
mapping(theFrom);
theFrom.attachEvent("onclick",function(){
var o = event.srcElement;
if(typeof(o.type)!="undefined"){
var check = o.getAttribute("check");
if(typeof(check)!="undefined"&&check!
=null&&check.toLowerCase()=="false"){
me.cancel = true;
}
}
}
);
}
}
}
);
}
else
{
window.onsubmit = function(e){var theFrom = e.target;if(theFrom){return
me.checkForm(theFrom);}}
window.addEventListener("click",function(e){var o = e.target;
if(typeof(o.type)!="undefined"){
var check = o.getAttribute("check");
if(typeof(check)!="undefined"&&check!=null&&check.toLowerCase
()=="false"){me.cancel = true;}
}
}
,false);
}
this.keyCheck = function(){
if(window.attachEvent){
window.attachEvent("onload",function(){for(var
i=0;i<document.forms.length;i++){var theFrom = document.forms[i]; if
(theFrom){myKeyCheck(theFrom);}}});
}else{
window.addEventListener("load",function(e){for(var
i=0;i<document.forms.length;i++){var theFrom = document.forms[i]; if
(theFrom){myKeyCheck(theFrom);}}},false);
}
function myKeyCheck(oForm){
var els = oForm.elements;
//遍历所有表元素
for(var i=0;i<els.length;i++){
//取得格式
var sUsage = els[i].getAttribute("Usage");
//如果设置Usage，则使用内置正则表达式，忽略Exp
if(typeof(sUsage)!="undefined"&&sUsage!=null){
switch(sUsage.toLowerCase ()){
case "zipcode":
case "int":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return //d/.test
(String.fromCharCode(chr))||(this.value.indexOf('+')<0?String.fromCharCode
(chr)=="+":false)||(this.value.indexOf('-')<0?String.fromCharCode(chr)
=="-":false);}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(//D/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
break;
case "mobile":
case "int+":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return //d/.test
(String.fromCharCode(chr))||(this.value.indexOf('+')<0?String.fromCharCode
(chr)=="+":false);}
els[i].onpaste = function(e){if(e==null)if(e==null)return !
clipboardData.getData('text').match(/[^/d/+]/); else return false; else
return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
break;
case "int-":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return //d/.test
(String.fromCharCode(chr))||(this.value.indexOf('-')<0?String.fromCharCode
(chr)=="-":false);}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(/[^/d/-]/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
break;
case "float":
case "num":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return /[/+/-/.]
|/d/.test(String.fromCharCode(chr));}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(/[^/d/./+/-]/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
break;
case "float+":
case "num+":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return /[/+/.]|/d/.test
(String.fromCharCode(chr));}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(/[^/d/./+]/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
break;
case "float-":
case "num-":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return /[/-/.]|/d/.test
(String.fromCharCode(chr));}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(/[^/d/./-]/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
break;
case "ascii":
els[i].style.imeMode= "disabled";
break;
case "ip4":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return /[/.]|/d/.test
(String.fromCharCode(chr));}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(/[^/d/.]/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
els[i].maxLength = 15;
break;
case "color":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return /[a-fA-Z]
|/d/.test(String.fromCharCode(chr))||(this.value.indexOf('#')<0?
String.fromCharCode(chr)=="#":false);}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(/[^/d/#]/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].maxLength = 7;
els[i].style.imeMode= "disabled";
break;
case "date":
els[i].onkeypress = function(e){var chr;if(e)chr=e.charCode; else
chr=window.event.keyCode;if(chr==0)return true; else return /[///-/.]
|/d/.test(String.fromCharCode(chr));}
els[i].onpaste = function(e){if(e==null)return !
clipboardData.getData('text').match(/[^/d/./-]/); else return false;}
els[i].ondragenter = function(e){return false;}
els[i].style.imeMode= "disabled";
break;
}
}
}
}
}
}
//初始化
var g_check = new CLASS_CHECK();
g_check.keyCheck();本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
