struts2 jquery ajax 和客户端验证不能一起工作-前端问题

struts2 jquery ajax and client side validatio not working toghether(struts2 jquery ajax 和客户端验证不能一起工作)

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问题描述

我使用了来自 http://struts.jgeppert.com 的标准代码片段/struts2-jquery-showcase/index.action 和 http://code.google.com/p/struts2-jquery/wiki/Validation.

I have used standard code snippet from http://struts.jgeppert.com/struts2-jquery-showcase/index.action and http://code.google.com/p/struts2-jquery/wiki/Validation.

但是客户端和 ajax 服务器端验证不能一起工作.

But the client side and ajax server side validations are not working together.

问题是表单提交不会停止并且即使我们 preventDefault 或执行其他任何操作也会调用操作.

The problem is form submission does not stop and action gets called even if we preventDefault or do anything else.

<%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix="sj" uri="/struts-jquery-tags"%>
<html>
  <head>
    <sj:head jqueryui="true"/>

  </head>
  <body>
        <div id="result">
            <s:actionerror/>
            <s:fielderror fieldName="name" value="eroor"></s:fielderror>
        Submit form bellow.</div>

        <!-- A List for Global Error Messages -->
    <ul id="formerrors" class="errorMessage"></ul>

    <s:form id="formValidateCustom" action="register1.action" namespace="/" theme="simple" cssClass="yform" >
        <fieldset>
            <legend>AJAX Form with Validation</legend>
                <div class="type-text">
                    <label for="echo">User: <span id="loginuserError"></span></label>
                                <sj:textfield id="name" name="name" />
                </div>
                <div class="type-text">
                    <label for="echo">Password: <span id="loginpasswordError"></span></label>
                        <sj:textfield id="password" name="password" />
                </div>
                <div class="type-button">
                        <sj:submit 
                                targets="result" 
                                button="true" 
                                validate="true" 
                                validateFunction="customeValidation"
                                value="Submit" 
                                onBeforeTopics="before"
                                timeout="2500" 
                                indicator="indicator"
                        />
                </div>
        </fieldset>
    </s:form>
        <script type="text/javascript">

        function customeValidation(form, errors) {

                //List for errors
//              alert("in js");
                var list = $('#formerrors');

                //Handle non field errors 
                if (errors.errors) {
                        $.each(errors.errors, function(index, value) { 
                                list.append('<li>'+value+'</li>
');
                        });
                }

                //Handle field errors 
                if (errors.fieldErrors) {
                        $.each(errors.fieldErrors, function(index, value) { 
                                var elem = $('#'+index);
                                if(elem)
                                {
                                        alert(value[0]);
                                }
                        });
                }
        }
        $.subscribe('before', function(event,data) {
             var fData = event.originalEvent.formData;
             alert('About to submit: 

' + fData[0].value + ' to target '+event.originalEvent.options.target+' with timeout '+event.originalEvent.options.timeout );
             var form = event.originalEvent.form[0]; 
             if (form.name.value.length  < 2) { 
                 alert('Please enter a value with min 2 characters');

                 **// the event does not stop here if we use ajax validation i.e validate = true, if we remove it then this works.**
                 event.originalEvent.options.submit = false; 
             } 
            });
    </script>
  </body>
</html>

如果我们使用 ajax 验证，即在提交按钮中使用 validate = true，则 event.originalEvenet.options.submit = false 不会在此处停止，如果我们将其删除，则此方法有效.**

the event.originalEvenet.options.submit = false does not stop here if we use ajax validation i.e validate = true in submit button, if we remove it then this works.**

推荐答案

嗯，

我在这里查看了 struts2 jquery 插件代码 o.validate 调用 struts2 中的验证函数，而 o.options.submit 设置为 false 时不会调用实际操作.

I looked into struts2 jquery plugin code here o.validate calls validate function in struts2 while o.options.submit when set to false does not calls the actual action.

现在，如果我的客户端验证也应该能够阻止 ajax 验证.

Now if my client side validation is should be able to block ajax validation too.

但在这里，我无法设置 event.originalEvent.validate = false 因此 ajax 验证将始终发生.

But here, I am not able to set event.originalEvent.validate = false hence ajax validation will happen always.

需要某种方式来解决这个问题，这是一个原生库，有一个用例，其中客户端验证必须能够撤销服务器端验证并避免网络调用.

Need someway to fix this is native library to have a use case, where client side validation must be able to revoke server side validation and avoid network call.

params.beforeSubmit = function(formData, form, formoptions) {

        var orginal = {};
        orginal.formData = formData;
        orginal.form = form;
        orginal.options = formoptions;
        orginal.options.submit = true;

        s2j.publishTopic(elem, always, orginal);

        if (o.onbef) {
            $.each(o.onbef.split(','), function(i, topic) {
                elem.publish(topic, elem, orginal);
            });
        }

        if (o.validate) {
            orginal.options.submit = s2j.validateForm(form, o);
            orginal.formvalidate = orginal.options.submit; 
            if (o.onaftervalidation) {
                $.each(o.onaftervalidation.split(','), function(i, topic) { 
                    elem.publish(topic, elem, orginal);
                });
            }  
        }
        if (orginal.options.submit) {
            s2j.showIndicator(indi);
            if(!o.datatype || o.datatype !== "json") {
                if (o.loadingtext && o.loadingtext !== "false") {
                    $.each(o.targets.split(','), function(i, target) {
                        $(s2j.escId(target)).html(o.loadingtext);
                    });
                }
                else if (s2j.defaults.loadingText !== null) {
                    $.each(o.targets.split(','), function(i, target) {
                        $(s2j.escId(target)).html(s2j.defaults.loadingText);
                    });
                }
            }
        }
        return orginal.options.submit;
    };

    params.success = s2j.pubSuc(elem, always, o.onsuc, indi, 'form', o);
    params.complete = s2j.pubCom(elem, always, o.oncom, o.targets, indi, o);
    params.error = s2j.pubErr(elem, always, o.onerr, o.errortext, 'html');

    $.each(o.formids.split(','), function(i, fid) {
        s2j.log('submit form : ' + fid);
        $(s2j.escId(fid)).ajaxSubmit(params);
    });

    return false;
});

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