市面上有很多表單驗證的框架,教我們怎麼驗證表單的數據提交,說實話也真的很簡單,但是我們會有一種感覺我們要是離開了這些框架的時候,我們有時候會束手無策,然後js驗證寫的很不規范,沒有一套比較好的模式,那我寫這篇的目的就是:我們自己構建js驗證應該是什麼樣子的,來慢慢看一下。
假設我們現在寫一個登錄的頁面(這可能是最簡單的數據提交了哦),html頁面會有一個用戶名和一個密碼的文本框讓我們用戶輸入自己的用戶名和密碼,我們肯定是要判斷用戶名和密碼是否為空,很明顯這樣的js驗證判斷是放在onblur事件裡面觸發,html代碼如下:
ValidateHelper是一個對象,一些驗證的方法就是在這個對象裡面,我們規定一下,js驗證用戶的輸入有兩返回結果,一個成功,一個是失敗。成功的時候我們輸出成功的提示,
失敗的時候我們輸出失敗的提示,對應的兩個輸出方法:
復制代碼 代碼如下:
normalMessage: function(jqueryObj, msg) {
var emObj = $(jqueryObj.parent().find('em')[0]);
emObj.empty().append(msg);
},
warningMessage: function(jqueryObj, msg) {
ValidateHelper.clearMessage(jqueryObj);
var emObj = $(jqueryObj.parent().find('em')[0]);
var spanElement = "<span style='color:#FF4C31;float:left;height:23px;line-height:23px;padding:0 10px 0 35px;'>"
+ msg
+ "</span>";
emObj.empty().append(spanElement);
},
還有一個清除提示的方法:
復制代碼 代碼如下:
clearMessage: function(jqueryObj) {
var emObj = $(jqueryObj.parent().find('em')[0]);
emObj.empty();
},
我們已經寫了成功和失敗提示方法,以及清除提示的方法,這個三個是我們在後面會一直調用的基本方法。
好了,我們寫一個驗證用戶輸入不能為空的方法:
復制代碼 代碼如下:
validateStringValueIsEmpty: function(obj, normalMsg, warningMsg) {
var jqueryObj = $(obj);
ValidateHelper.clearMessage(obj);
if ($.trim(jqueryObj.val()).length == 0) {
ValidateHelper.warningMessage(jqueryObj, warningMsg);
return false;
}
else {
ValidateHelper.normalMessage(jqueryObj, normalMsg);
return true;
}
},
這個方法會在onblur中被調用的驗證方法,裡面自然也用到了成功和失敗提示方法,以及清除提示的方法。參數有三個,要驗證的Dom或者jQuery對象、成功提示信息、失敗提示信
息。要是為空就失敗,要是不為空就成功。
上面寫好的方法在onblur中會觸發的,我們提交數據的時候還會用到得哦:
復制代碼 代碼如下:
initInfo: function() {
var userName = $('#email');
var userPwd = $('#setPwd');
if (!ValidateHelper.validateStringValueIsEmpty(userName, '通過', '不能為空')) {
userName.focus();
return null;
}
if (!ValidateHelper.validateStringValueIsEmpty(userPwd, '通過', '不能為空')) {
userPwd.focus();
return null;
}
var userInfo = {
UserName: userName.val(),
UserPwd: userPwd.val()
};
return userInfo;
},
post: function() {
var userInfo = ValidateHelper.initInfo();
if (userInfo == null) {
return;
}
$.ajax({
type: "post",
dataType: "text",
url: "Ajax/Module.aspx",
timeout: 30000,
data: { UserName: userInfo.UserName, UserPwd: userInfo.UserPwd },
success: function(data) {
alert(data.toString());
}
});
}
這邊呢要是在提交數據的時候會調用validateStringValueIsEmpty方法,要是返回的是失敗 是不會真的提交給服務器端得。
那上面的情況是一個最簡單的處理不為空的情況,要是我們想驗證是否是Email 是否是身份證號碼,這些復雜的驗證實現如下:
復制代碼 代碼如下:
var Validation = {
textCount: function(field, counter, maxLimit) {
var message = $(field).val();
if ($(field).val().length > maxLimit)
$(field).val(message.substring(0, maxLimit))
//$(counter).text(maxLimit-field.value.length);
},
refreshValidator: function(img, input) {
$(img).attr('src', $(img).attr('src') + "&r=" + Math.random());
$(input).focus();
},
isUrl: function(s) {
var strRegex =
/^((http(s)?|ftp|telnet|news|rtsp|mms):\/\/)?(((\w(\-*\w)*\.)+[a-zA-Z]{2,4})|(((1\d\d|2([0-4]\d|5[0-5])|[1-9]\d|\d).){3}(1\d\d|2([0-4]\d|5[0-5])|[1-9]\d|\d).?))(:\d{0,5})?(\/+.*)*$/;
return strRegex.test(s);
},
isDecimal: function(d) { var pattern = /^(([1-9]\d{0,12})|0)(\.\d{1,2})?$/; return pattern.test(d); },
isEmail: function(s) {
var pattern = /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/;
return pattern.test(s);
},
isLowEmail: function(s) {
var b, e;
b = s.indexOf("@");
e = s.indexOf(".");
if (b <= 0) return false;
if (e < 0 || e == (s.length - 1)) { return false; }
return true;
},
clearNoNum: function(event, obj) {
event = window.event || event;
if (event.keyCode == 37 | event.keyCode == 39) {
return;
}
obj.value = obj.value.replace(/[^\d.]/g, "");
obj.value = obj.value.replace(/^\./g, "");
obj.value = obj.value.replace(/\.{2,}/g, ".");
obj.value = obj.value.replace(".", "$#$").replace(/\./g, "").replace("$#$", ".");
},
checkNum: function(obj) {
obj.value = obj.value.replace(/\.$/g, "");
},
isInteger: function(value) {
var integerReg = new RegExp(/^\d+$/);
return integerReg.test(value);
},
isValidateReg: function(value) {
var validateReg = /^([A-Za-z0-9\s\-\_\~\!\@\#\$\%\^\&\*\(\)\|\<\>\?\:\;\"\'\.\[\]\{\}\,\+\`\/\\\=]){6,16}$/;
if (validateReg.test(value)) {
return true;
}
return false;
},
isDate: function(strValue) {
var objRegExp = /^\d{4}(\-|\/|\.)\d{1,2}\1\d{1,2}$/
if (!objRegExp.test(strValue))
return false;
else {
var arrayDate = strValue.split(RegExp.$1);
var intDay = parseInt(arrayDate[2], 10);
var intYear = parseInt(arrayDate[0], 10);
var intMonth = parseInt(arrayDate[1], 10);
if (intMonth > 12 || intMonth < 1) {
return false;
}
var arrayLookup = { '1': 31, '3': 31, '4': 30, '5': 31, '6': 30, '7': 31,
'8': 31, '9': 30, '10': 31, '11': 30, '12': 31
}
if (arrayLookup[parseInt(arrayDate[1])] != null) {
if (intDay <= arrayLookup[parseInt(arrayDate[1])] && intDay != 0)
return true;
}
if (intMonth - 2 == 0) {
var booLeapYear = (intYear % 4 == 0 && (intYear % 100 != 0 || intYear % 400 == 0));
if (((booLeapYear && intDay <= 29) || (!booLeapYear && intDay <= 28)) && intDay != 0)
return true;
}
}
return false;
},
isZip: function(value) {
var validateReg = /^[0-9]{6}$/;
return validateReg.test(value);
},
checkSpecialChar: function(value) {
var validateReg = /([~!@#$%^&*\/\\,.\(\)]){6,16}$/;
return validateReg.test(value);
},
CheckSpecialString: function(value) {
var validateReg = /[\u0000-\u0008\u000B\u000C\u000E-\u001F\uD800-\uDFFF\uFFFE\uFFFF]/;
return validateReg.test(value);
},
isTel: function(s) {
var patrn = /^\d{3,4}-\d{7,8}(-\d{3,4})?$/
if (!patrn.exec(s)) return false
return true
},
isMobile: function(value) {
var validateReg = /^1\d{10}$/;
return validateReg.test(value);
},
getLength: function(value) {
return value.replace(/[^\x00-\xff]/g, "**").length;
},
isLicence: function(value) {
var validateReg = /^[A-Za-z]{10}[0-9]{10}$/;
return validateReg.test(value);
},
isPersonalCard: function(value) {
var validateReg = /(^\d{15}$)|(^\d{17}(\d|[A-Za-z]{1})$)/;
return validateReg.test(value);
},
isOrganizationCodeCard: function(value) {
var validateReg = /^[A-Za-z0-9]{9}$/;
return validateReg.test(value);
},
isBankAccount: function(value) {
var validateReg = /^[1-9]{1}[0-9]*$/;
return validateReg.test(value);
},
MaxLength: function(field, maxlimit) {
var j = field.value.replace(/[^\x00-\xff]/g, "**").length;
var tempString = field.value;
var tt = "";
if (j > maxlimit) {
for (var i = 0; i < maxlimit; i++) {
if (tt.replace(/[^\x00-\xff]/g, "**").length < maxlimit)
tt = tempString.substr(0, i + 1);
else
break;
}
if (tt.replace(/[^\x00-\xff]/g, "**").length > maxlimit) {
tt = tt.substr(0, tt.length - 1);
field.value = tt;
}
else {
field.value = tt;
}
}
}
};
這個類是寫了一些驗證Email 、身份證號碼等等的正則表達式,供我們後面使用,使用方法如下:
復制代碼 代碼如下:
validateStringValueForEmail: function(obj, normalMsg, warningMsg) {
var jqueryObj = $(obj);
ValidateHelper.clearMessage(obj);
if (!ValidateHelper.validateStringValueIsEmpty(jqueryObj, "通過", "不能為空")) {
ValidateHelper.warningMessage(jqueryObj, "不能為空");
return false;
}
if (!Validation.isEmail(jqueryObj.val())) {
ValidateHelper.warningMessage(jqueryObj, warningMsg);
return false;
}
else {
ValidateHelper.normalMessage(jqueryObj, normalMsg);
return true;
}
},
validateStringValueForCardID: function(obj, normalMsg, warningMsg) {
var jqueryObj = $(obj);
ValidateHelper.clearMessage(obj);
if (!ValidateHelper.validateStringValueIsEmpty(jqueryObj, "通過", "不能為空")) {
ValidateHelper.warningMessage(jqueryObj, "不能為空");
return false;
}
if (!Validation.isPersonalCard(jqueryObj.val())) {
ValidateHelper.warningMessage(jqueryObj, warningMsg);
return false;
}
else {
ValidateHelper.normalMessage(jqueryObj, normalMsg);
return true;
}
},
那到這邊是基本可以處理我們的一般的js驗證了,可以試試以後用在自己的框架上,我們把自己調試的源碼附上:
ASPX :
復制代碼 代碼如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="FormValidateModuleEx._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="js\jquery-1.6.2.min.js" type="text/javascript"></script>
<script src="js\MyValidate.js" type="text/javascript"></script>
<%--<script src="js\CheckPersonCardID.js" type="text/javascript"></script>--%>
</head>
<body>
<div>
<li>
<label for="email">
用戶名:
</label>
<input name="email" type="text" id="email" maxlength="50" onblur="return ValidateHelper.validateStringValueIsEmpty($(this),'通過','不能為空');" /><em></em>
</li>
<li>
<label for="setPwd">
密碼:
</label>
<input name="setPwd" type="password" id="setPwd" maxlength="16" onblur="return ValidateHelper.validateStringValueIsEmpty($(this),'通過','不能為空');" /><em></em>
</li>
<li>
<label for="setPwd">
身份證:
</label>
<input name="cardId" type="text" id="cardId" onblur="return ValidateHelper.validateStringValueForCardID($(this),'通過','身份證格式不正確');" /><em></em><%--IdCardValidate($(this),'身份證的格式不正確');--%>
</li>
<li>
<label for="setPwd">
Email:
</label>
<input name="againEmail" type="text" id="againEmail" onblur="return ValidateHelper.validateStringValueForEmail($(this),'通過','email格式不正確');" /><em></em>
</li>
<li><input onclick="return ValidateHelper.post();" type="button" id="btnPost" /></li>
</div>
</body>
</html>
js:
復制代碼 代碼如下:
var Validation = {
textCount: function(field, counter, maxLimit) {
var message = $(field).val();
if ($(field).val().length > maxLimit)
$(field).val(message.substring(0, maxLimit))
//$(counter).text(maxLimit-field.value.length);
},
refreshValidator: function(img, input) {
$(img).attr('src', $(img).attr('src') + "&r=" + Math.random());
$(input).focus();
},
isUrl: function(s) {
var strRegex =
/^((http(s)?|ftp|telnet|news|rtsp|mms):\/\/)?(((\w(\-*\w)*\.)+[a-zA-Z]{2,4})|(((1\d\d|2([0-4]\d|5[0-5])|[1-9]\d|\d).){3}(1\d\d|2([0-4]\d|5[0-5])|[1-9]\d|\d).?))(:\d{0,5})?(\/+.*)*$/;
return strRegex.test(s);
},
isDecimal: function(d) { var pattern = /^(([1-9]\d{0,12})|0)(\.\d{1,2})?$/; return pattern.test(d); },
isEmail: function(s) {
var pattern = /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/;
return pattern.test(s);
},
isLowEmail: function(s) {
var b, e;
b = s.indexOf("@");
e = s.indexOf(".");
if (b <= 0) return false;
if (e < 0 || e == (s.length - 1)) { return false; }
return true;
},
clearNoNum: function(event, obj) {
event = window.event || event;
if (event.keyCode == 37 | event.keyCode == 39) {
return;
}
obj.value = obj.value.replace(/[^\d.]/g, "");
obj.value = obj.value.replace(/^\./g, "");
obj.value = obj.value.replace(/\.{2,}/g, ".");
obj.value = obj.value.replace(".", "$#$").replace(/\./g, "").replace("$#$", ".");
},
checkNum: function(obj) {
obj.value = obj.value.replace(/\.$/g, "");
},
isInteger: function(value) {
var integerReg = new RegExp(/^\d+$/);
return integerReg.test(value);
},
isValidateReg: function(value) {
var validateReg = /^([A-Za-z0-9\s\-\_\~\!\@\#\$\%\^\&\*\(\)\|\<\>\?\:\;\"\'\.\[\]\{\}\,\+\`\/\\\=]){6,16}$/;
if (validateReg.test(value)) {
return true;
}
return false;
},
isDate: function(strValue) {
var objRegExp = /^\d{4}(\-|\/|\.)\d{1,2}\1\d{1,2}$/
if (!objRegExp.test(strValue))
return false;
else {
var arrayDate = strValue.split(RegExp.$1);
var intDay = parseInt(arrayDate[2], 10);
var intYear = parseInt(arrayDate[0], 10);
var intMonth = parseInt(arrayDate[1], 10);
if (intMonth > 12 || intMonth < 1) {
return false;
}
var arrayLookup = { '1': 31, '3': 31, '4': 30, '5': 31, '6': 30, '7': 31,
'8': 31, '9': 30, '10': 31, '11': 30, '12': 31
}
if (arrayLookup[parseInt(arrayDate[1])] != null) {
if (intDay <= arrayLookup[parseInt(arrayDate[1])] && intDay != 0)
return true;
}
if (intMonth - 2 == 0) {
var booLeapYear = (intYear % 4 == 0 && (intYear % 100 != 0 || intYear % 400 == 0));
if (((booLeapYear && intDay <= 29) || (!booLeapYear && intDay <= 28)) && intDay != 0)
return true;
}
}
return false;
},
isZip: function(value) {
var validateReg = /^[0-9]{6}$/;
return validateReg.test(value);
},
checkSpecialChar: function(value) {
var validateReg = /([~!@#$%^&*\/\\,.\(\)]){6,16}$/;
return validateReg.test(value);
},
CheckSpecialString: function(value) {
var validateReg = /[\u0000-\u0008\u000B\u000C\u000E-\u001F\uD800-\uDFFF\uFFFE\uFFFF]/;
return validateReg.test(value);
},
isTel: function(s) {
var patrn = /^\d{3,4}-\d{7,8}(-\d{3,4})?$/
if (!patrn.exec(s)) return false
return true
},
isMobile: function(value) {
var validateReg = /^1\d{10}$/;
return validateReg.test(value);
},
getLength: function(value) {
return value.replace(/[^\x00-\xff]/g, "**").length;
},
isLicence: function(value) {
var validateReg = /^[A-Za-z]{10}[0-9]{10}$/;
return validateReg.test(value);
},
isPersonalCard: function(value) {
var validateReg = /(^\d{15}$)|(^\d{17}(\d|[A-Za-z]{1})$)/;
return validateReg.test(value);
},
isOrganizationCodeCard: function(value) {
var validateReg = /^[A-Za-z0-9]{9}$/;
return validateReg.test(value);
},
isBankAccount: function(value) {
var validateReg = /^[1-9]{1}[0-9]*$/;
return validateReg.test(value);
},
MaxLength: function(field, maxlimit) {
var j = field.value.replace(/[^\x00-\xff]/g, "**").length;
var tempString = field.value;
var tt = "";
if (j > maxlimit) {
for (var i = 0; i < maxlimit; i++) {
if (tt.replace(/[^\x00-\xff]/g, "**").length < maxlimit)
tt = tempString.substr(0, i + 1);
else
break;
}
if (tt.replace(/[^\x00-\xff]/g, "**").length > maxlimit) {
tt = tt.substr(0, tt.length - 1);
field.value = tt;
}
else {
field.value = tt;
}
}
}
};
var ValidateHelper = {
validateStringValueIsEmpty: function(obj, normalMsg, warningMsg) {
var jqueryObj = $(obj);
ValidateHelper.clearMessage(obj);
if ($.trim(jqueryObj.val()).length == 0) {
ValidateHelper.warningMessage(jqueryObj, warningMsg);
return false;
}
else {
ValidateHelper.normalMessage(jqueryObj, normalMsg);
return true;
}
},
validateStringValueForEmail: function(obj, normalMsg, warningMsg) {
var jqueryObj = $(obj);
ValidateHelper.clearMessage(obj);
if (!ValidateHelper.validateStringValueIsEmpty(jqueryObj, "通過", "不能為空")) {
ValidateHelper.warningMessage(jqueryObj, "不能為空");
return false;
}
if (!Validation.isEmail(jqueryObj.val())) {
ValidateHelper.warningMessage(jqueryObj, warningMsg);
return false;
}
else {
ValidateHelper.normalMessage(jqueryObj, normalMsg);
return true;
}
},
validateStringValueForCardID: function(obj, normalMsg, warningMsg) {
var jqueryObj = $(obj);
ValidateHelper.clearMessage(obj);
if (!ValidateHelper.validateStringValueIsEmpty(jqueryObj, "通過", "不能為空")) {
ValidateHelper.warningMessage(jqueryObj, "不能為空");
return false;
}
if (!Validation.isPersonalCard(jqueryObj.val())) {
ValidateHelper.warningMessage(jqueryObj, warningMsg);
return false;
}
else {
ValidateHelper.normalMessage(jqueryObj, normalMsg);
return true;
}
},
normalMessage: function(jqueryObj, msg) {
var emObj = $(jqueryObj.parent().find('em')[0]);
emObj.empty().append(msg);
},
warningMessage: function(jqueryObj, msg) {
ValidateHelper.clearMessage(jqueryObj);
var emObj = $(jqueryObj.parent().find('em')[0]);
var spanElement = "<span style='color:#FF4C31;float:left;height:23px;line-height:23px;padding:0 10px 0 35px;'>"
+ msg
+ "</span>";
emObj.empty().append(spanElement);
},
clearMessage: function(jqueryObj) {
var emObj = $(jqueryObj.parent().find('em')[0]);
emObj.empty();
},
initInfo: function() {
var userName = $('#email');
var userPwd = $('#setPwd');
if (!ValidateHelper.validateStringValueIsEmpty(userName, '通過', '不能為空')) {
userName.focus();
return null;
}
if (!ValidateHelper.validateStringValueIsEmpty(userPwd, '通過', '不能為空')) {
userPwd.focus();
return null;
}
var userInfo = {
UserName: userName.val(),
UserPwd: userPwd.val()
};
return userInfo;
},
post: function() {
var userInfo = ValidateHelper.initInfo();
if (userInfo == null) {
return;
}
$.ajax({
type: "post",
dataType: "text",
url: "Ajax/Module.aspx",
timeout: 30000,
data: { UserName: userInfo.UserName, UserPwd: userInfo.UserPwd },
success: function(data) {
alert(data.toString());
}
});
}
}