JS：checkFrom对输入框和文本框的判断总结

//****--2009.2.19 重新整理添加 by ddd ---***
//较常用到的方法都列到了前面//----页面截取字符串----name为字符串-------
function maxsubstring(name, max, suffix) {
var newname;
suffix = suffix || '...';
return (name.length>max)?name.substr(0,max)+suffix : name;
}
//-----textarea maxlength限制-------
//使用说明:
//<textarea name="content" cols="40" rows="10" onpropertychange="checkMaxLen(this,10,0)" oninput="checkMaxLen(this,10,0)" onclick="gz(this); return false;" >评论描述字数不得超过10字。</textarea>
function gz(el) {
el.value = "";
el.onclick = null;
}function checkMaxLen(obj, maxlength, num, str) {
str = str || "对不起，您输入的字数已超过" + maxlength + "个字，您的文字将被截取。"
var oldValue = new Array();
if (obj.value.length > maxlength) {
alert(str);
obj.value = obj.value.substring(0, maxlength);
oldValue[num] = obj.value;
return false;
} else {
oldValue[num] = obj.value;
}
}//-------判断必须是数字和字母的组合---------
function isNumAndAlphabet(name, str) {
str = str || "只允许填写数字和字母。";
var reg = /^(([a-z]+[0-9]+)|([0-9]+[a-z]+))[a-z0-9]*$/i ;
if (!reg.test(name.value)) {
alert(str);
name.focus();
return true;
}
return false;
}//------判断是否有中文---------
function havaChinese(name, str) {
str = str || "信息中不允许有汉字。";
var reg = /[\u0391-\uFFE5]/g;
if (reg.test(name.value)) {
alert(str);
name.focus();
return true;
}
return false;
}//-------判断是否有sql非法字符--------
function isSqlCharacter(name, str) {
str = str || "您提交的信息中有非法字符。";
// var namevalue = name.value.toLowerCase() ;//把所有的字母转换成小写 ;
// alert("namevalue="+namevalue) ;
var re = /(select|insert|delete|drop|update|truncate|exec|'|"|%)/gi;
if (re.test(name.value)) {
alert(str);
name.focus();
return true;
}
return false;
}//-------判断是否有特殊字符-------
function isSpecialCharacters(name, str) {
str = str || "提交信息中不允许有特殊字符。";
var re = /(#|@|\^|%|\$|&|\*|~)/gi;
if (re.test(name.value)) {
alert(str);
name.focus();
return true;
}
return false;
}//-------判断是否有空格-------------
function notSpace(name, strs) {
strs = strs || "提交信息中不允许有空格。";
if (contain(name.value, " ")) {
alert(strs);
name.focus();
return true;
}
return false;
}
// --------------
function contain(name, charset)
{
var i;
for (i = 0; i < charset.length; i++)
if (name.indexOf(charset.charAt(i)) >= 0)
return true;
return false;
}//-------通行证 验证-------
function notAccount(name, str) {
str = str || "请填写正确的通行证账号。";
// var reg = /^[a-zA-Z0-9]{6,16}$/;
var reg = /^[a-z]{1}[a-z0-9]{5,15}$/;
if (trim(name.value) == "" || !reg.test(name.value)) {
alert(str);
name.focus();
return true;
}
return false;
}//-------身份证 验证-------
function notIdCard(name, str) {
str = str || "请填写正确的身份证号码。";
var reg = /^(\d{15}|\d{17}[\d,x,X])$/;
if (trim(name.value) == "" || !reg.test(name.value)) {
alert(str);
name.focus();
return true;
}
return false;
}//-------固定号码 验证-------
function notFixPhone(name, str) {
str = str || "请填写正确的电话号码。";
var reg = /(\d{2,5}-\d{7,8}(-\d{1,})?)|(13\d{9})|(15\d{9})/;
if (trim(name.value) == "" || !reg.test(name.value)) {
alert(str);
name.focus();
return true;
}
return false;
}//-------网址，MSN 验证-------
function notSrc(name, str) {
str = str || "请填写正确的地址。";
var regex = /(http:\/\/)?([\w-]+\.)+[\w-]+(\/[\w- \.\/?%&=]*)?/;
var src = name.value ;
var result = regex.test(src);
if (trim(src) == "" || result == false) {
alert(str);
name.focus();
return true;
}
return false;
}
//---------年龄 验证--------------
function notAge(name, str) {
str = str || "请填写正确的年龄。";
var age = name.value ;
if (trim(age) == "" || isNaN(trim(age)) || age < 1 || age > 150) {
alert(str);
name.focus();
return true;
}
return false;}//-------邮编 验证-------
function notPost(name, str) {
str = str || "请输入正确的邮政编码。";
if (trim(name.value) == "" || trim(name.value).length != 6 || isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
return false;
}//-------是否汉字-------
function notChinese(name, str) {
str = str || "你输入的不全是汉字。";
var reg = /^[\u4E00-\u9FA5]*$/;
if (trim(name.value) == "" || !reg.test(name)) {
alert(str);
name.focus();
return false;
}
return true;
}//-------邮箱验证-------
function notEmail(name, strs) {
strs = strs || "请填写正确的邮件地址。";
var str,re;
re = /([\w|-]+@[\w|-]+\.[\w|-]+)(\.?[\w|-]*)(\.?[\w|-]*)/i; re.exec(trim(name.value));
if (RegExp.$3 != "" && RegExp.$3 != "." && RegExp.$2 != ".")
str = RegExp.$1 + RegExp.$2 + RegExp.$3;
else
if (RegExp.$2 != "" && RegExp.$2 != ".")
str = RegExp.$1 + RegExp.$2;
else
str = RegExp.$1;
if (trim(name.value) == "" || str != trim(name.value))
{
alert(strs);
name.focus();
return true;
}
return false;
}//-------输入框文字上传验证 min上限 max下限(字节计算)-------
function notStrArea(name, min, max, str2) {
var str = name.value;
len = 0;
for (i = 0; i < str.length; i++) {
iCode = str.charCodeAt(i);
if ((iCode >= 0 && iCode <= 255) || (iCode >= 0xff61 && iCode <= 0xff9f)) {
len += 0.5;
//english
} else {
len += 1;
}
}
if (trim(str) == "" || len < min || len > max) {
alert(str2);
name.focus();
return true;
}
return false;
}//-------输入框文字上传验证 最多字数限制(字节计算)-------
function notStrMax(name, max, str2) {
var str = name.value;
len = 0;
for (i = 0; i < str.length; i++) {
iCode = str.charCodeAt(i);
if ((iCode >= 0 && iCode <= 255) || (iCode >= 0xff61 && iCode <= 0xff9f)) {
len += 0.5;
} else {
len += 1;
}
}
if (trim(str) == "" || len > max) {
alert(str2);
name.focus();
return true;
}
return false;
}//-------只判断 是否数字 -------
function notNumber(name, str) {
if (trim(name.value) == "" || isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
return false;
}//-------是否数字 未填写默认0-------
function notNumber0(name, str) {
if (trim(name.value) == "") {
name.value = 0;
return false;
}
else if (isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
return false;
}//-------空值 验证-------
function isNull(name, str) {
if (trim(name.value) == "") {
alert(str);
name.focus();
return true;
}
return false;
}//-------是否字母------
function CheckAlphabet(Str) {
var flag = true;
var Strlength = Str.length;
for (var i = 0; i < Strlength; i++) {
if (Str.charCodeAt(i) < 65 || (90 < Str.charCodeAt(i) && Str.charCodeAt(i) < 97) || Str.charCodeAt(i) > 122) {
flag = false;
break;
}
} return flag;
}
//---------是否含有数字 ---------
function checkInputValue(inputvalue) {
var i,len,str;
str = inputvalue;
len = str.length;
str = str.toUpperCase();
for (i = 0; i < len; i++)
{
c = str.charAt(i);
if (c >= "0" && c <= "9")
{
return true;
}
}
return false;
}//---------是否是带小数点的数字---------
function notFloat(name, str) {
var s = parseFloat(trim(name.value));
if (isNaN(s)) {
alert(str);
name.focus();
return true;
}
else
return false;
}//---------检查输入的值，小数点后的位数---------
function checknumber(value, num, str) {
if (value != "") {
if (value.indexOf(".") > 0) {
var temp = value.length - (value.indexOf(".") + 1);
if (temp > num) {
alert(str + "的小数点后只能有" + num + "位！");
return true;
}
}
}
return false;
}//---------是否下划线---------
function CheckLine(Str) {
var flag = true;
var Strlength = Str.length;
for (var i = 0; i < Strlength; i++) {
if (Str.charCodeAt(i) != 95) {
flag = false;
break;
}
}
return flag;
}
//-------是否由字母或数字组成------
function notChinese(obj, alertValue) {
var objValue = obj.value;
for (var i = 0; i < objValue.length; i++) {
var temtchar = objValue.charAt(i);
var Digit = CheckDigit(temtchar);
var Alphabet = CheckAlphabet(temtchar); if (!Digit && !Alphabet) {
alert(alertValue + "必须是由字母或数字组成!");
return true;
}
} return false;
}//-------必须是由字母、数字、下划线组成!-----------
function notValid(obj)
{
var objValue = obj.value;
for (var i = 0; i < objValue.length; i++) {
var temtchar = objValue.charAt(i);
var Digit = CheckDigit(temtchar);
var Alphabet = CheckAlphabet(temtchar);
var line = CheckLine(temtchar);
if (!Digit && !Alphabet && !line) {
alert("请确认您输入的内容必须是由字母、数字、下划线组成!");
return true;
}
}
return false;
}//-------是否合法年月 格式为2003-01-01 -------
function notNYR2(name, str) {
if (trim(name.value).length == 0) {
return false;
}
if (trim(name.value).length != 10) {
alert(str + "的格式不对，格式应该如此：2003-01-01");
name.focus();
return true;
}
if (trim(name.value).substring(4, 5) != "-") {
alert(str + "的年与月份之间应该有连接号,请核对!");
name.focus();
return true;
}
if (trim(name.value).substring(5, 7) > 12) {
alert(str + "的月份不能大于12,请核对!");
name.focus();
return true;
}
if (trim(name.value).substring(7, 8) != "-") {
alert(str + "的月份与日期之间应该有连接号,请核对!");
name.focus();
return true;
}
if (trim(name.value).substring(8, 9) > 31) {
alert(str + "的日期不能大于31,请核对!");
name.focus();
return true;
}
return false;
}//----------长度是否对 by lyj ------------
function notLength(name, length, str) {
if (trim(name.value).length != length) {
alert(str);
name.focus();
return true;
}
return false;
}//-----------固定长度的数字------------
function notLandN(name, length, str) {
if (trim(name.value).length != length || isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
return false;
}//--------------是否合法年月 by lyj----------------
function notNY1(name, str) {
if (trim(name.value).length != 6 || isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
if (trim(name.value).substring(4, 6) > 12) {
alert("月份不能大于12,请核对!");
name.focus();
return true;
}
return false;
}
//-----------是否合法年月 日 by wkh--------------
function notNYR(name, str) {
if (trim(name.value) == "" || trim(name.value).length != 8 || isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
if (trim(name.value).substring(4, 6) > 12) {
alert("月份不能大于12,请核对!");
name.focus();
return true;
}
if (trim(name.value).substring(6, 8) > 31) {
alert("日期不能大于31,请核对!");
name.focus();
return true;
}
return false;
}//------------是否合法年月 日 by wkh----------------
function notNYR1(name, str) {
if (trim(name.value).length != 8 || isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
if (trim(name.value).substring(4, 6) > 12) {
alert("月份不能大于12,请核对!");
name.focus();
return true;
}
if (trim(name.value).substring(6, 8) > 31) {
alert("日期不能大于31,请核对!");
name.focus();
return true;
}
return false;
}//--------汉字校验--------
function checkIsChinese(str)
{
//如果值为空，通过校验
if (str == "")
return true;
var pattern = /^([\u4E00-\u9FA5]|[\uFE30-\uFFA0])*$/gi;
if (pattern.test(str))
{
alert("你输入的不全是汉字。");
return false;
}
else
return true;
}
//--------是否整形数字 ----------
function isIntNumber(name, str) {
if (isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
var s = parseInt(trim(name.value));
if (trim(name.value) != s) {
alert(str);
name.focus();
return true;
}
else
return false;
}//--------是否整形数字--------------
function notIntNumber(name, str) {
if (isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
} if (name.value.indexOf('.') >= 0) {
alert(str);
name.focus();
return true;
} var s = parseInt(trim(name.value));
if (trim(name.value) != s) {
alert(str);
name.focus();
return true;
}
else
return false;
}function trim(str)
{
var len;
var i,j;
len = str.length;
i = 0;
j = 0;
while (j < len)
{
if (str.charAt(i) == " ")
i++;
else
break;
j++;
}
str = str.substr(i, len - i);
len = str.length;
i = len - 1;
j = len - 1;
while (j > 0)
{
if (str.charAt(i) == " ")
i--;
else
break;
j--;
}
str = str.substr(0, j + 1);
return str;
}function isStringEmputy(str)
{
var s;
s = trim(str);
alert("s=" + s);
str = s;
alert("str=" + str);
if (s.length < 1)
return true; return false;
}function replace(str1, c1, c2)
{
var len,i,c,str;
str = "";
len = str1.length;
for (i = 0; i < len; i++)
{
c = str1.charAt(i);
if (c == c1)
c = c2;
str += c;
}
return str;
}function toSafe(str)
{
var re;
re = /'/g;
str = str.replace(re, "＇");
re = /\)/g;
str = str.replace(re, "）");
re = /\(/g;
str = str.replace(re, "（");
re = /%/g;
str = str.replace(re, "％");
re = /\[/;
str = str.replace(re, "［");
re = /\]/;
str = str.replace(re, "］");
return str;
}function makeToSafe(formName)
{
var i,form;
form = eval(formName);
for (i = 0; i < form.elements.length; i++)
{
if (form.elements[i].type == "text" || form.elements[i].type == "textarea")
{
form.elements[i].value = toSafe(form.elements[i].value);
}
}
}//-------登录名必须是由字母、数字、下划线等组成!-----------
function notValidName(obj)
{
var objValue = obj.value;
for (var i = 0; i < objValue.length; i++) {
var temtchar = objValue.charAt(i);
// alert(temtchar+":"+temtchar.charCodeAt(0));
var Digit = CheckDigit(temtchar);
var Alphabet = CheckAlphabet(temtchar);
var line = CheckLine(temtchar);
if (!Digit && !Alphabet && !line) {
alert("登录名必须是由字母、数字、下划线等组成!");
return true;
}
}
return false;
}//------密码必须是由字母、数字、下划线组成!------------
function notValidPassWord(obj)
{
var objValue = obj.value;
for (var i = 0; i < objValue.length; i++) {
var temtchar = objValue.charAt(i);
// alert(temtchar+":"+temtchar.charCodeAt(0));
var Digit = CheckDigit(temtchar);
var Alphabet = CheckAlphabet(temtchar);
var line = CheckLine(temtchar);
if (!Digit && !Alphabet && !line) {
alert("密码必须是由字母、数字、下划线组成!");
return true;
}
}
return false;
}function CheckDigit(DigitStr) {
var flag = true;
var Digitlength = DigitStr.length;
for (var i = 0; i < Digitlength; i++) {
if (DigitStr.charCodeAt(i) < 48 || DigitStr.charCodeAt(i) > 57) {
flag = false;
break;
}
} return flag;
}function convertToHtml(str)
{
var re;
re = / /g;
str = str.replace(re, "&nbsp;");
re = /\r\n/g;
str = str.replace(re, "<br>");
return str;
}function makeToHtml(formName)
{
var form;
form = eval(formName);
for (i = 0; i < form.elements.length; i++)
if (form.elements[i].type == "textarea")
form.elements[i].value = convertToHtml(form.elements[i].value);
}//------打印-------
function printinfo() { form1.target = "_blank";
var action = form1.action;
if (form1.printflag = "undefine") {
test = action;
if (test.indexOf("BeanAddServlet") > 0) {
alert("请保存信息后再使用打印功能");
form1.target = "_self";
return;
}
var a = test.indexOf("Update");
if (a > 0) test = test.substring(0, a) + "DisplayServlet" + test.substring(a + 13);
//alert(test);
if (test.indexOf("?") > 0)
form1.action = test + "&printflag=1";
else
form1.action = test + "?printflag=1";
} else {
form1.all.printflag.value = "1";
}
form1.submit();
form1.action = action;
form1.target = "_self";
}//---------修改后提示是否返回列表 ------------
function confirmPage(strurl) {
if (confirm("保存成功！选择'确定'可返回列表;")) {
window.open(strurl, '_self');
}
}function isCharsInBag(s, bag)
{
var i,c;
for (i = 0; i < s.length; i++)
{
c = s.charAt(i);
//字符串s中的字符
if (bag.indexOf(c) > -1)
return c;
}
return "";
}
//-------检查函数:中文---------------
function ischinese(name)
{ var errorChar;
var badChar = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789><,[]{}?/+=|\'\":;~!#$%()`";
errorChar = isCharsInBag(name.value, badChar)
if (errorChar != "")
{
alert("请重新输入中文\n");
name.focus();
return true;
} return false;
}
//----------检查函数: 中文或数字-------------
function ischineseordata(name)
{ var errorChar;
var badChar = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz><,[]{}?/+=|\'\":;~!#$%()`";
errorChar = isCharsInBag(name.value, badChar)
if (errorChar != "")
{
alert("请重新输入中文或数字\n");
name.focus();
return true;
} return false;
}//===============================================================================================================================function notNumber1(name, str) {//是否数字 by lyj
if (trim(name.value) != "") {
if (isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
}
return false;
}function notNY(name, str) {//是否合法年月 by lyj
if (trim(name.value) == "" || trim(name.value).length != 6 || isNaN(trim(name.value))) {
alert(str);
name.focus();
return true;
}
if (trim(name.value).substring(4, 6) > 12) {
alert("月份不能大于12,请核对!");
name.focus();
return true;
}
return false;
}