表單驗證的完整應用案例探討
編輯：關於JavaScript
表單問題，是個糾結的問題，我覺得這個是程序開發人員要去處理的東西，但是有時候程序又要前端去處理，那要看你的後台搭檔怎麼樣了？苦逼的前端哇，不過還是自己了解一點還是比較好，你搞我也可以搞，你不搞我還可以搞，哈哈 。如果對你有用歡迎留言，共同探討，共同進步，廢話不說，貼代碼（為了童鞋們方便，本代碼復制即可用，無需分塊拼湊）：
復制代碼 代碼如下:
<!doctype html>
<html>
<head>
<title>表單驗證的完整應用</title>
<style type="text/css">
.leftside{width:100px; text-align:right;float:left;}
label.error{color:#ea5200; margin-left:4px; padding:0px 20px; background:url(http://jt.875.cn/icon/unchecked.gif) no-repeat 2px 0 }
label.right{margin-left:4px; padding-left:20px; background:url(http://jt.875.cn/icon/checked.gif) no-repeat 2px 0}
</style>
<script type="text/javascript" src="http://jt.875.cn/js/jquery.js"></script>
<script type="text/javascript" src="http://jt.875.cn/js/jquery.validate.js"></script>
<script type="text/javascript">
$(function(){
$( "#regForm" ).validate({
rules: {
// 注冊用戶名
username: {
required: true,
minlength: 5,
maxlength: 12
},
// email
email: {
required: true,
email: true
},
// 密碼
password: {
required: true,
minlength: 6,
maxlength: 18
},
// 確認密碼
confirm_password: {
equalTo:"#password"
},
// 檢驗驗證碼
captcha: {
required: true,
remote: "checkCaptcha.php"
}
},
messages: {
// 注冊用戶名
username: {
required: "此項不能為空",
minlength: "不能少於5個字符",
maxlength: "不能多於12個字符"
},
// email
email: {
required: "此項不能為空",
email: "email格式不正確"
},
// 密碼
password: {
required: "此項不能為空",
minlength: "不能少於6個字符",
maxlength: "不能多於18個字符"
},
// 確認密碼
confirm_password: "兩次輸入密碼不一致",
// 檢驗驗證碼
captcha: {
required: "請輸入驗證碼",
remote: "驗證碼輸入錯誤"
}
}
});
});
</script>
</head>
<body>
<form id="regForm" method="get" action="">
<p><label class="leftside">姓名：</label><input type="text" value="" name="username" id="username" /></p>
<p><label class="leftside">密碼：</label><input type="password" value="" name="password" id="password" /></p>
<p><label class="leftside">確認密碼：</label><input type="password" value="" name="confirm_password" id="confirm_password" /></p>
<p><label class="leftside">EMAIL：</label><input type="text" value="" name="email" id="email" /></p>
</form>
</body>
</html>
效果圖如下
復制代碼 代碼如下:
<!doctype html>
<html>
<head>
<title>表單驗證的完整應用</title>
<style type="text/css">
.leftside{width:100px; text-align:right;float:left;}
label.error{color:#ea5200; margin-left:4px; padding:0px 20px; background:url(http://jt.875.cn/icon/unchecked.gif) no-repeat 2px 0 }
label.right{margin-left:4px; padding-left:20px; background:url(http://jt.875.cn/icon/checked.gif) no-repeat 2px 0}
</style>
<script type="text/javascript" src="http://jt.875.cn/js/jquery.js"></script>
<script type="text/javascript" src="http://jt.875.cn/js/jquery.validate.js"></script>
<script type="text/javascript">
$(function(){
$( "#regForm" ).validate({
rules: {
// 注冊用戶名
username: {
required: true,
minlength: 5,
maxlength: 12
},
email: {
required: true,
email: true
},
// 密碼
password: {
required: true,
minlength: 6,
maxlength: 18
},
// 確認密碼
confirm_password: {
equalTo:"#password"
},
// 檢驗驗證碼
captcha: {
required: true,
remote: "checkCaptcha.php"
}
},
messages: {
// 注冊用戶名
username: {
required: "此項不能為空",
minlength: "不能少於5個字符",
maxlength: "不能多於12個字符"
},
email: {
required: "此項不能為空",
email: "email格式不正確"
},
// 密碼
password: {
required: "此項不能為空",
minlength: "不能少於6個字符",
maxlength: "不能多於18個字符"
},
// 確認密碼
confirm_password: "兩次輸入密碼不一致",
// 檢驗驗證碼
captcha: {
required: "請輸入驗證碼",
remote: "驗證碼輸入錯誤"
}
}
});
});
</script>
</head>
<body>
<form id="regForm" method="get" action="">
<p><label class="leftside">姓名：</label><input type="text" value="" name="username" id="username" /></p>
<p><label class="leftside">密碼：</label><input type="password" value="" name="password" id="password" /></p>
<p><label class="leftside">確認密碼：</label><input type="password" value="" name="confirm_password" id="confirm_password" /></p>
<p><label class="leftside">EMAIL：</label><input type="text" value="" name="email" id="email" /></p>
</form>
</body>
</html>
效果圖如下
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