DRP中用到的JavaScript验证
在Drp中添加按钮的时候要验证用户输入的是否合法利用JavaScript就可以实现这个功能下面就是我的代码。
<!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">
<script src="client_validate.js"></script>
<script type="text/javascript">
function goBack() {
window.self.location="user_maint.html"
}
function addUser() {
var vUserId=document.getElementById("userId");
var vUserName=document.getElementById("userName");
var vPassword=document.getElementById("password");
var vContactTel=document.getElementById("contactTel");
var vEmail=document.getElementById("email");
/**用户代码验证**/
//用户代码不能为空
if(trim(vUserId.value)==""){
alert("用户代码不能为空！");
vUserId.focus();
return;
}
//判断字符长度大于4
if(trim(vUserId.value).length<4){
alert("用户代码长度不能小于4！");
vUserId.focus();
vUserId.select();
return;
}
//用户代码只能是数字和字母
var re=new RegExp(/^[0-9a-zA-Z]{4,6}$/);
if(!re.test(trim(vUserId.value)))
{
alert("用户代码必须是字母或数字，只能为4~6位");
vUserId.focus();
vUserId.select();
return ;
}
//第一个字符为字母
re.compile(/^[a-zA-Z]/);
if(!re.test(trim(vUserId.value)))
{
alert("用户代码首字符必须是字母");
vUserId.focus();
vUserId.select();
return ;
}
/**用户名称验证**/
//用户名必须输入
if(trim(vUserName.value)==""){
alert("用户名称不能为空！");
vUserName.focus();
vUserName.select();
return;
}
//用户名不能和用户代码一样
if(trim(vUserName.value)==trim(vUserId.value)){
alert("用户名不能和用户代码一样！");
vUserName.focus();
vUserName.select();
return;
}
/**密码验证**/
//判断密码字符长度大于6
if(trim(vPassword.value).length<6){
alert("密码长度不能小于6！");
vPassword.focus();
vPassword.select();
return;
}
/**联系电话验证**/
//如果联系电话不为空则验证联系电话为数字
if (trim(vContactTel.value) != "") {
//采用正则
re.compile(/^[0-9]+$/);
if (!re.test(vContactTel.value)) {
alert("电话号码不合法！");
vContactTel.focus();
return;
}
}
/**Email验证**/
if(trim(vEmail.value)!=""){
re.compile(/^(\w)+(\.\w+)*@(\w)+((\.\w+)+)$/);
if(!re.test(trim(vEmail.value))){
alert("Email不合法！");
vEmail.focus();
vEmail.select();
return;
}
}
/* document.getElementById("userForm").action="user_add.jsp";
document.getElementById("userForm").method="post";
document.getElementById("userForm").submit(); */
with (document.getElementById("userForm")){
action="user_add.jsp";
method="post";
submit();
}
}
function linit(){
document.getElementById("userId").focus();
}
/*禁止输入除了字母以外的东西*/
function userIdOnKeyPress(){
if(!(event.keyCode>=97 && event.keyCode<=122)){
event.keyCode=0;
}
}
/*按回车键变为Tab键，如果到了添加按钮则提交数据*/
function document.onkeydown() {
if(window.event.keyCode==13 && window.event.srcElement.type!='button'){
window.event.keyCode=9;
}
}
</script>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body class="body1" onload="linit()">
<form name="userForm" target="_self" id="userForm">
<div align="center">
<table width="95%" border="0" cellspacing="2" cellpadding="2">
<tr>
<td>
</td>
</tr>
</table>
<table width="95%" border="0" cellspacing="0" cellpadding="0"
height="25">
<tr>
<td width="522" class="p1" height="25" nowrap>
<img src="../images/mark_arrow_03.gif" width="14" height="14">
<b>系统管理>>用户维护>>添加</b>
</td>
</tr>
</table>
<hr width="97%" align="center" size=0>
<table width="95%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="22%" height="29">
<div align="right">
<font color="#FF0000">*</font>用户代码:
</div>
</td>
<td width="78%">
<input name="userId" type="text" class="text1" id="userId"
size="10" maxlength="10" onkeypress="userIdOnKeyPress();">
</td>
</tr>
<tr>
<td height="26">
<div align="right">
<font color="#FF0000">*</font>用户名称:
</div>
</td>
<td>
<input name="userName" type="text" class="text1" id="userName"
size="20" maxlength="20">
</td>
</tr>
<tr>
<td height="26">
<div align="right">
<font color="#FF0000">*</font>密码:
</div>
</td>
<td>
<label>
<input name="password" type="password" class="text1"
id="password" size="20" maxlength="20">
</label>
</td>
</tr>
<tr>
<td height="26">
<div align="right">
联系电话:
</div>
</td>
<td>
<input name="contactTel" type="text" class="text1"
id="contactTel" size="20" maxlength="20">
</td>
</tr>
<tr>
<td height="26">
<div align="right">
email:
</div>
</td>
<td>
<input name="email" type="text" class="text1" id="email"
size="20" maxlength="20">
</td>
</tr>
</table>
<hr width="97%" align="center" size=0>
<div align="center">
<input name="btnAdd" class="button1" type="button" id="btnAdd"
value="添加" onClick="addUser()">
<input name="btnBack" class="button1" type="button" id="btnBack"
value="返回" onClick="goBack()" />
</div>
</div>
</form>
</body>
</html>
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