推荐一个js表单验证类,很实用

通常在做前台设计的时候设计到表单的设计,有些人会把数据验证交给后台做,其实我觉得js验证更加友好。

以下推荐一个js验证类:

js代码:

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Validator = {
Require : /.+/,
Email : /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/,
Phone : /^((\(\d{3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}$/,
Mobile : /^((\(\d{3}\))|(\d{3}\-))?13\d{9}$/,
Url : /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/,
IdCard : /^\d{15}(\d{2}[A-Za-z0-9])?$/,
Currency : /^\d+(\.\d+)?$/,
Number : /^\d+$/,
Zip : /^[1-9]\d{5}$/,
QQ : /^[1-9]\d{4,8}$/,
Integer : /^[-\+]?\d+$/,
Double : /^[-\+]?\d+(\.\d+)?$/,
English : /^[A-Za-z]+$/,
Chinese :  /^[\u0391-\uFFE5]+$/,
UnSafe : /^(([A-Z]*|[a-z]*|\d*|[-_\~!@#\$%\^&\*\.\(\)\[\]\{\}<>\?\\\/\'\"]*)|.{0,5})$|\s/,
IsSafe : function(str){return !this.UnSafe.test(str);},
SafeString : "this.IsSafe(value)",
Limit : "this.limit(value.length,getAttribute('min'),  getAttribute('max'))",
LimitB : "this.limit(this.LenB(value), getAttribute('min'), getAttribute('max'))",
Date : "this.IsDate(value, getAttribute('min'), getAttribute('format'))",
Repeat : "value == document.getElementsByName(getAttribute('to'))[0].value",
Range : "getAttribute('min') < value && value < getAttribute('max')",
Compare : "this.compare(value,getAttribute('operator'),getAttribute('to'))",
Custom : "this.Exec(value, getAttribute('regexp'))",
Group : "this.MustChecked(getAttribute('name'), getAttribute('min'), getAttribute('max'))",
ErrorItem : [document.forms[0]],
ErrorMessage : ["以下原因导致提交失败:\t\t\t\t"],
Validate : function(theForm, mode){
var obj = theForm || event.srcElement;
var count = obj.elements.length;
this.ErrorMessage.length = 1;
this.ErrorItem.length = 1;
this.ErrorItem[0] = obj;
for(var i=0;i<count;i++){
with(obj.elements[i]){
var _dataType = getAttribute("dataType");
if(typeof(_dataType) == "object" || typeof(this[_dataType]) == "undefined")  continue;
this.ClearState(obj.elements[i]);
if(getAttribute("require") == "false" && value == "") continue;
switch(_dataType){
case "Date" :
case "Repeat" :
case "Range" :
case "Compare" :
case "Custom" :
case "Group" :
case "Limit" :
case "LimitB" :
case "SafeString" :
if(!eval(this[_dataType])) {
this.AddError(i, getAttribute("msg"));
}
break;
default :
if(!this[_dataType].test(value)){
this.AddError(i, getAttribute("msg"));
}
break;
}
}
}
if(this.ErrorMessage.length > 1){
mode = mode || 1;
var errCount = this.ErrorItem.length;
switch(mode){
case 2 :
for(var i=1;i<errCount;i++)
this.ErrorItem[i].style.color = "red";
case 1 :
alert(this.ErrorMessage.join("\n"));
this.ErrorItem[1].focus();
break;
case 3 :
for(var i=1;i<errCount;i++){
try{
var span = document.createElement("SPAN");
span.id = "__ErrorMessagePanel";
span.style.color = "red";
this.ErrorItem[i].parentNode.appendChild(span);
span.innerHTML = this.ErrorMessage[i].replace(/\d+:/,"*");
}
catch(e){alert(e.description);}
}
this.ErrorItem[1].focus();
break;
default :
alert(this.ErrorMessage.join("\n"));
break;
}
return false;
}
return true;
},
limit : function(len,min, max){
min = min || 0;
max = max || Number.MAX_VALUE;
return min <= len && len <= max;
},
LenB : function(str){
return str.replace(/[^\x00-\xff]/g,"**").length;
},
ClearState : function(elem){
with(elem){
if(style.color == "red")
style.color = "";
var lastNode = parentNode.childNodes[parentNode.childNodes.length-1];
if(lastNode.id == "__ErrorMessagePanel")
parentNode.removeChild(lastNode);
}
},
AddError : function(index, str){
this.ErrorItem[this.ErrorItem.length] = this.ErrorItem[0].elements[index];
this.ErrorMessage[this.ErrorMessage.length] = this.ErrorMessage.length + ":" + str;
},
Exec : function(op, reg){
return new RegExp(reg,"g").test(op);
},
compare : function(op1,operator,op2){
switch (operator) {
case "NotEqual":
return (op1 != op2);
case "GreaterThan":
return (op1 > op2);
case "GreaterThanEqual":
return (op1 >= op2);
case "LessThan":
return (op1 < op2);
case "LessThanEqual":
return (op1 <= op2);
default:
return (op1 == op2);
}
},
MustChecked : function(name, min, max){
var groups = document.getElementsByName(name);
var hasChecked = 0;
min = min || 1;
max = max || groups.length;
for(var i=groups.length-1;i>=0;i--)
if(groups[i].checked) hasChecked++;
return min <= hasChecked && hasChecked <= max;
},
IsDate : function(op, formatString){
formatString = formatString || "ymd";
var m, year, month, day;
switch(formatString){
case "ymd" :
m = op.match(new RegExp("^((\\d{4})|(\\d{2}))([-./])(\\d{1,2})\\4(\\d{1,2})$"));
if(m == null ) return false;
day = m[6];
month = m[5]--;
year =  (m[2].length == 4) ? m[2] : GetFullYear(parseInt(m[3], 10));
break;
case "dmy" :
m = op.match(new RegExp("^(\\d{1,2})([-./])(\\d{1,2})\\2((\\d{4})|(\\d{2}))$"));
if(m == null ) return false;
day = m[1];
month = m[3]--;
year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6], 10));
break;
default :
break;
}
if(!parseInt(month)) return false;
month = month==12 ?0:month;
var date = new Date(year, month, day);
return (typeof(date) == "object" && year == date.getFullYear() && month == date.getMonth() && day == date.getDate());
function GetFullYear(y){return ((y<30 ? "20" : "19") + y)|0;}
}
}

把这段代码拷贝到一个js文件里面,然后在页面中引用,对于需要验证数据的表单加入代码:

<form onSubmit="return Validator.Validate(this,2)">
code...
</form>

这里面的参数2是模式,你可以测试一下不同的模式。
然后在需要验证的input中假如属性:

账号:<input dataType="Require" msg="Must be filled" type="text"/>
密码:<input dataType="Require" msg="Must be filled"  type="text" name="pwd"/>
验证密码:<input type="text" dataType="Repeat" to="pwd" msg="Password repeat error"/>

这里的dataType可以设置的值就在那段js开头里面选就OK了,msg就是验证不成功时提示的信息

4 Responses to 推荐一个js表单验证类,很实用 »

  1. zenyhi 评论 2009-03-11 14:20

    用了您的模板,过来感谢下,呵呵~谢谢共享! :o hh:

    回复

  2. zenyhi 评论 2009-03-12 14:17

    请问下,页首的blogroll我的显示不出来,是不是因为我在后台将默认的blogroll删掉,另外建了图标链接 别名 ImgLink ,文字链接 别名 FontLink 的原因?
    请问需要怎么改才能显示出链接呢?
    我看您的模板文件 上有 class = ImgLink 等的啊~?

    回复

    joe 回复 三月 15th, 2009 at 00:55

    你看一下那个php的代码,header.php文件97行左右有两行
    get_links(266,….

    把里面的266换成你自己的连接类别就OK了

    回复

    zenyhi 回复 三月 15th, 2009 at 02:21

    ;) 谢谢指点,搞定了。

    回复

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