修改jquery的remote让前段显示服务器错误信息

remote: function (value, element, param) {    //param 是你的rules中规定的参数，在这里肯定是remote中的参数了    //value是你输入的值    //element是你操作的元素，标签

    if (this.optional(element)) {        return "dependency-mismatch";    }

    var previous = this.previousValue(element),        validator, data;

    if (!this.settings.messages[element.name]) {        this.settings.messages[element.name] = {};    }    previous.originalMessage = this.settings.messages[element.name].remote;    this.settings.messages[element.name].remote = previous.message;

    param = typeof param === "string" && {url: param} || param;

    if (previous.old !== value) {        previous.old = value;        validator = this;        this.startRequest(element);        data = {};        data[element.name] = value;//输入框中的数据

        $.ajax($.extend(true, {            url: param,            mode: "abort",            port: "validate" + element.name,            dataType: "json",            data: data,            context: validator.currentForm,            success: function (response) {

                var valid = response[‘value‘] === true || response[‘value‘] === "true", errors, message, submitted;

                validator.settings.messages[element.name].remote = previous.originalMessage;                if (valid) {                    submitted = validator.formSubmitted;                    validator.prepareElement(element);                    validator.formSubmitted = submitted;                    validator.successList.push(element);                    delete validator.invalid[element.name];                    validator.showErrors();                } else {                    errors = {};                    message = response[‘msg‘] || validator.defaultMessage(element, "remote");                    errors[element.name] = previous.message = $.isFunction(message) ? message(value) : message;                    validator.invalid[element.name] = true;                    validator.showErrors(errors);                }                previous.valid = valid;                validator.stopRequest(element, valid);            }        }, param));        return "pending";    }}