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bootstrapValidator + Ajax表單驗證

首先,利用bootstrap Validator表單驗證進行表單驗證需要如下CSS和JS.

<link rel="stylesheet" type="text/css" href="css/bootstrap.css" />

<link rel="stylesheet" type="text/css" href="css/bootstrapValidator.css" />

<script src="js/jquery-1.10.2.min.js" type="text/javascript"></script>

<script src="js/bootstrap.js" type="text/javascript"></script>

<script src="js/bootstrapValidator.js"></script>

這些樣式和Js可以百度下載,或者到bootstrap-validator的github上找 https://github.com/1000hz/bootstrap-validator

其次,我們需要嚴格遵守相應的格式

程式碼示例如下:

<!DOCTYPE html>
<html>
<head>
    <title>BootstrapValidator demo</title>

    <link rel="stylesheet" href="../vendor/bootstrap/css/bootstrap.css"/>
    <link rel="stylesheet" href="../dist/css/bootstrapValidator.css"/>

    <script type="text/javascript" src="../vendor/jquery/jquery-1.10.2.min.js"></script>
    <script type="text/javascript" src="../vendor/bootstrap/js/bootstrap.min.js"></script>
    <script type="text/javascript" src="../dist/js/bootstrapValidator.js"></script>
</head>
<body>
    <div class="container">
        <div class="row">
        <div class="page-header">
            <h1>Use error message that is returned from remote/callback validator</h1>
        </div>

        <div class="col-lg-8 col-lg-offset-2">
            <form id="defaultForm" method="post" class="form-horizontal" action="target.php">
                <div class="form-group">
                    <label class="col-lg-3 control-label">Username</label>
                    <div class="col-lg-5">
                        <input type="text" class="form-control" name="username" autocomplete="off" />
                    </div>
                </div>

                <div class="form-group">
                    <label class="col-lg-3 control-label">Email address</label>
                    <div class="col-lg-5">
                        <input type="text" class="form-control" name="email" autocomplete="off" />
                    </div>
                </div>

                <div class="form-group">
                    <label class="col-lg-3 control-label">Password</label>
                    <div class="col-lg-5">
                        <input type="password" class="form-control" name="password" />
                    </div>
                </div>

                <div class="form-group">
                    <div class="col-lg-9 col-lg-offset-3">
                        <button type="submit" class="btn btn-primary">Submit</button>
                    </div>
                </div>
            </form>
        </div>
    </div>

<script type="text/javascript">
$(document).ready(function() {
    $('#defaultForm').bootstrapValidator({
        message: 'This value is not valid',
        feedbackIcons: {
            valid: 'glyphicon glyphicon-ok',
            invalid: 'glyphicon glyphicon-remove',
            validating: 'glyphicon glyphicon-refresh'
        },
        fields: {
            username: {
                message: 'The username is not valid',
                validators: {
                    notEmpty: {
                        message: 'The username is required and can\'t be empty'
                    },
                    remote: {
                        url: 'remote2.php'
                    },
                    different: {
                        field: 'password',
                        message: 'The username and password can\'t be the same as each other'
                    }
                }
            },
            email: {
                validators: {
                    notEmpty: {
                        message: 'The email address is required and can\'t be empty'
                    },
                    emailAddress: {
                        message: 'The input is not a valid email address'
                    },
                    remote: {
                        url: 'remote2.php'
                    }
                }
            },
            password: {
                validators: {
                    notEmpty: {
                        message: 'The password is required and can\'t be empty'
                    },
                    different: {
                        field: 'username',
                        message: 'The password can\'t be the same as username'
                    },
                    callback: {
                        callback: function(value, validator) {
                            // Check the password strength
                            if (value.length < 6) {
                                return {
                                    valid: false,
                                    message: 'The password must be more than 6 characters'
                                }
                            }

                            if (value === value.toLowerCase()) {
                                return {
                                    valid: false,
                                    message: 'The password must contain at least one upper case character'
                                }
                            }
                            if (value === value.toUpperCase()) {
                                return {
                                    valid: false,
                                    message: 'The password must contain at least one lower case character'
                                }
                            }
                            if (value.search(/[0-9]/) < 0) {
                                return {
                                    valid: false,
                                    message: 'The password must contain at least one digit'
                                }
                            }

                            return true;
                        }
                    }
                }
            }
        }
    });
});
</script>
</body>
</html>
當然這些程式碼在demo中都有。而我們需要修改為下面的ajax非同步表單驗證的形式,所以我們需要對原來程式碼進行修改。
<!DOCTYPE html>
<html>
<head>
    <title>BootstrapValidator demo</title>

    <link rel="stylesheet" href="../vendor/bootstrap/css/bootstrap.css"/>
    <link rel="stylesheet" href="../dist/css/bootstrapValidator.css"/>

    <script type="text/javascript" src="../vendor/jquery/jquery-1.10.2.min.js"></script>
    <script type="text/javascript" src="../vendor/bootstrap/js/bootstrap.min.js"></script>
    <script type="text/javascript" src="../dist/js/bootstrapValidator.js"></script>
</head>
<body>
    <div class="container">
        <div class="row">
        <div class="page-header">
            <h1>Use error message that is returned from remote/callback validator</h1>
        </div>

        <div class="col-lg-8 col-lg-offset-2">
            <form id="defaultForm" method="post" class="form-horizontal" action="target.php">
                <div class="form-group">
                    <label class="col-lg-3 control-label">Username</label>
                    <div class="col-lg-5">
                        <input type="text" class="form-control" name="username" autocomplete="off" />
                    </div>
                </div>

                <div class="form-group">
                    <label class="col-lg-3 control-label">Email address</label>
                    <div class="col-lg-5">
                        <input type="text" class="form-control" name="email" autocomplete="off" />
                    </div>
                </div>

                <div class="form-group">
                    <label class="col-lg-3 control-label">Password</label>
                    <div class="col-lg-5">
                        <input type="password" class="form-control" name="password" />
                    </div>
                </div>

                <div class="form-group">
                    <div class="col-lg-9 col-lg-offset-3">
                        <button type="submit" class="btn btn-primary">Submit</button>
                    </div>
                </div>
            </form>
        </div>
    </div>

<script type="text/javascript">
$(document).ready(function() {
    $('#defaultForm').bootstrapValidator({
        message: 'This value is not valid',
        feedbackIcons: {
            valid: 'glyphicon glyphicon-ok',
            invalid: 'glyphicon glyphicon-remove',
            validating: 'glyphicon glyphicon-refresh'
        },
        fields: {
            username: {
                message: 'The username is not valid',
                validators: {
                    notEmpty: {
                        message: 'The username is required and can\'t be empty'
                    },
					remote : {
							url : 'api/check_username',
							message : "該使用者名稱已經存在!",
							delay : 500,
							type : 'post',
					},
                    different: {
                        field: 'password',
                        message: 'The username and password can\'t be the same as each other'
                    }
                }
            },
            email: {
                validators: {
                    notEmpty: {
                        message: 'The email address is required and can\'t be empty'
                    },
                    emailAddress: {
                        message: 'The input is not a valid email address'
                    },
                    remote: {
                        url: 'remote2.php'
                    }
                }
            },
            password: {
                validators: {
                    notEmpty: {
                        message: 'The password is required and can\'t be empty'
                    },
                    different: {
                        field: 'username',
                        message: 'The password can\'t be the same as username'
                    },
                    callback: {
                        callback: function(value, validator) {
                            // Check the password strength
                            if (value.length < 6) {
                                return {
                                    valid: false,
                                    message: 'The password must be more than 6 characters'
                                }
                            }

                            if (value === value.toLowerCase()) {
                                return {
                                    valid: false,
                                    message: 'The password must contain at least one upper case character'
                                }
                            }
                            if (value === value.toUpperCase()) {
                                return {
                                    valid: false,
                                    message: 'The password must contain at least one lower case character'
                                }
                            }
                            if (value.search(/[0-9]/) < 0) {
                                return {
                                    valid: false,
                                    message: 'The password must contain at least one digit'
                                }
                            }

                            return true;
                        }
                    }
                }
            }
        }
    });
});
</script>
</body>
</html>
可以看到我們在第一個欄位 username中的remote添加了ajax驗證。delay表示的是ajax重新整理的時間是0.5秒一次。

在後臺中,我們只需要返回一個true或一個false。

最好的參考: http://1000hz.github.io/bootstrap-validator/