• 使用 jQuery Validate 进行表单验证


    <!DOCTYPE html>
    <html>
     <head>
      <meta charset="UTF-8" />  
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
     </head> 
     <body> 
      <form id="example_form" method="get" action=""> 
       <fieldset> 
        <legend>填写注册信息</legend> 
        <p> <label for="user_name">登录名</label> <input id="user_name" name="name" /> </p> 
        <p> <label for="user_age">年龄</label> <input class="math_class" id="user_age" name="age" /> </p> 
        <p> <label for="user_birthday">生日</label> <input id="user_birthday" name="birthday" /> </p> 
        <p> <label for="user_card_id">信用卡号</label> <input id="user_card_id" name="card" /> </p> 
        <p> <label for="user_salary">月薪</label> <input id="user_salary" name="salary" /> </p> 
        <p> <label for="user_prove">流水证明</label> <input id="user_prove" type="file" name="prove" /> </p> 
        <p> <label for="user_phone">家庭电话</label> <input class="phone_group" id="user_phone" name="phone" /> </p> 
        <p> <label for="user_mobile">个人电话</label> <input class="phone_group" id="user_mobile" name="mobile" /> </p> 
        <p> <label for="user_image">个人头像</label> <input id="user_image" type="file" name="image" /> </p> 
        <p> <label for="user_home">个人首页</label> <input id="user_home" type="url" name="home" /> </p> 
        <p> <label for="user_password">输入密码</label> <input id="user_password" type="password" name="password" /> </p> 
        <p> <label for="user_repassword">重复密码</label> <input id="user_repassword" type="password" name="repassword" /> </p> 
        <p> <label for="send_to_me">邮件订阅</label> <input id="send_to_me" type="checkbox" name="sendMe" /> </p> 
        <p> <label for="user_email">邮件地址</label> <input id="user_email" type="email" name="email" /> </p> 
        <p> <label for="registration_agree">已阅读并同意注册协议</label> <input id="registration_agree" type="checkbox" name="regAgree" /> </p> 
        <p> <input class="submit" type="submit" value="Submit" /> </p> 
       </fieldset> 
      </form> 
      <div id="error_messages"> 
       <div id="error_tips"></div> 
       <ul></ul>
      </div> 
      <div id="error_container"></div> 
      <script src="jquery-1.8.3.js"></script> 
      <script src="jquery.validate.min.js"></script> 
      <script src="additional-methods.min.js"></script> 
      <script src="messages_zh.min.min.js"></script> 
      <script>
        jQuery.validator.addMethod("math",
        function(value, element, params) {
            var sign = params[0];
            var result;
            switch (sign) {
     
            case "*":
                result = params[1] * params[2];
                break;
            case "/":
                result = params[1] / params[2];
                break;
            case "-":
                result = params[1] - params[2];
                break;
            default:
                result = params[1] + params[2];
            }
            return this.optional(element) || value == result;
        },
        jQuery.validator.format("Please enter the correct value for {0} + {1} + {2}"));
        jQuery.validator.addClassRules("math_class", {
            required: true,
            math: ['*', 5, 6]
        });
        jQuery.validator.setDefaults({
            // 仅做校验,不提交表单
            debug: true,
            // 提交表单时做校验
            onsubmit: true,
            // 焦点自动定位到第一个无效元素
            focusInvalid: true,
            // 元素获取焦点时清除错误信息
            focusCleanup: true,
            //忽略 class="ignore" 的项不做校验
            ignore: ".ignore",
            // 忽略title属性的错误提示信息
            ignoreTitle: true,
            // 为错误信息提醒元素的 class 属性增加 invalid 
            errorClass: "invalid",
            // 为通过校验的元素的 class 属性增加 valid 
            validClass: "valid",
            // 使用 <em> 元素进行错误提醒
            errorElement: "em",
            // 使用 <li> 元素包装错误提醒元素
            wrapper: "li",
            // 将错误提醒元素统一添加到指定元素
            //errorLabelContainer: "#error_messages ul",
            // 自定义错误容器
            errorContainer: "#error_messages, #error_container",
            // 自定义错误提示如何展示
            showErrors: function(errorMap, errorList) {
                $("#error_tips").html("Your form contains " + this.numberOfInvalids() + " errors, see details below.");
                this.defaultShowErrors();
            },
            // 自定义错误提示位置
            errorPlacement: function(error, element) {
                error.insertAfter(element);
            },
            // 单个元素校验通过后处理
            success: function(label, element) {
                console.log(label);
                console.log(element);
                label.addClass("valid").text("Ok!")
            },
     
            highlight: function(element, errorClass, validClass) {
                $(element).addClass(errorClass).removeClass(validClass);
                $(element.form).find("label[for=" + element.id + "]").addClass(errorClass);
            },
            unhighlight: function(element, errorClass, validClass) {
                $(element).removeClass(errorClass).addClass(validClass);
                $(element.form).find("label[for=" + element.id + "]").removeClass(errorClass);
            },
            //校验通过后的回调,可用来提交表单
            submitHandler: function(form, event) {
                console.log($(form).attr("id"));
                //$(form).ajaxSubmit();
                //form.submit();
            },
            //校验未通过后的回调
            invalidHandler: function(event, validator) {
                // 'this' refers to the form
                var errors = validator.numberOfInvalids();
                if (errors) {
                    var message = errors == 1 ? 'You missed 1 field. It has been highlighted': 'You missed ' + errors + ' fields. They have been highlighted';
                    console.log(message);
                }
            }
        });
        $("#example_form").validate({
            rules: {
                name: {
                    required: true,
                    minlength: 2,
                    maxlength: 24
                },
                age: {
                    required: true,
                    rangelength: [1, 3],
                    min: 10
                },
                birthday: {
                    required: true,
                    //date:true,
                    dateISO: true
                },
                card: {
                    required: {
                        depends: function(element) {
                            return $("#user_age").val() >= 18;
                        }
                    },
                    creditcard: true
                },
                salary: {
                    required: true,
                    step: {
                        param: 100,
                        depends: function(element) {
                            return $("#user_age").val() >= 28;
                        }
                    }
                },
                prove: {
                    required: function(element) {
                        return $("#user_age").val() >= 18;
                    },
                    extension: "xls|csv|doc"
                },
                phone: {
                    require_from_group: [1, ".phone_group"],
                    phoneUS: true
                },
                mobile: {
                    require_from_group: [1, ".phone_group"]
                },
                image: {
                    required: true,
                    accept: "image/*"
                    //accept:"audio/*,image/x-eps,application/pdf"
                },
                home: {
                    required: true,
                    url: true,
                    // 校验之前对内容进行处理
                    normalizer: function(element) {
                        var url = $.trim($(element).val());
                        // Check if it doesn't start with http:// or https:// or ftp://
                        if (url && url.substr(0, 7) !== "http://" && url.substr(0, 8) !== "https://" && url.substr(0, 6) !== "ftp://") {
                            // then prefix with http://
                            url = "http://" + url;
                        }
                        // Return the new url
                        return url;
                    },
                    // 失去焦点时进行校验
                    onfocusout: function(element, event) {
                        console.log(element);
                    },
                    onkeyup: function(element, event) {
                        console.log(element);
                    },
                    onclick: function(element, event) {
                        console.log(element);
                    }
     
                },
                password: {
                    required: true,
                    minlength: 6
                },
                repassword: {
                    required: true,
                    equalTo: "#user_password"
                },
                email: {
                    required: "#send_to_me:checked",
                    email: true,
                    remote: {
                        url: "http://localhost:8080/check/register",
                        type: "post",
                        dataType: "json",
                        data: {
                            email: $("#user_email").val()
                        }
                    }
                },
                regAgree: {
                    required: true
                }
            },
            //自定义错误提示信息
            messages: {
                name: {
                    required: "请输入用户名",
                    minlength: jQuery.validator.format("用户名至少需填写{0}个字符"),
                    maxlength: jQuery.validator.format("用户名最多填写{0}个字符")
                }
            },
        });
    </script>  
     </body>
    </html>

    源码地址:https://github.com/CodingPandaLLL/file/tree/master/jsValidate

    文章转自:https://blog.csdn.net/pengjunlee/article/details/80685500

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  • 原文地址:https://www.cnblogs.com/LiLiliang/p/12553338.html
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