jquery插件登陆

<!-- 确保jQuery库已加载 -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<!-- 加载jQuery Validation Plugin -->
<script src="https://cdn.jsdelivr.net/npm/jquery-validation@1.19.3/dist/jquery.validate.min.js"></script>

$.validator.addMethod("customRule", function(value, element) {
    // 自定义验证逻辑
    return this.optional(element) || value.length > 5;
}, "请输入至少6个字符");

$("#loginForm").validate({
    rules: {
        username: {
            required: true,
            customRule: true
        }
    }
});

$("#loginForm").submit(function(event) {
    event.preventDefault();
    if ($(this).valid()) {
        $.ajax({
            url: "/login",
            method: "POST",
            data: $(this).serialize(),
            success: function(response) {
                if (response.success) {
                    window.location.href = "/dashboard";
                } else {
                    alert("登录失败：" + response.message);
                }
            },
            error: function() {
                alert("服务器错误，请稍后再试");
            }
        });
    }
});