所有表单数据的AJAX验证均失败

我正在使用ajax jquery验证。

https://code.google.com/p/struts2-jquery/wiki/Validation

在我的struts.xml中，我有

<action name="createChannel" class="channel.ChannelAction" method="createChannel">
<interceptor-ref name="jsonValidationWorkflowStack"/>
<result  name="success">createSuccess.jsp</result>
<result  name="input">createChannel.jsp</result>
</action>

在JSP页面中，我有：

<s:form method="get" action="createChannel" >
<s:textfield name="channelName" label="Channel Name" />
<s:textfield name="channelBand" label="Channel Band"/>
<s:textfield name="vcFrequency" label="Video Carrier Frequency"/>
<s:textfield name="acFrequency" label="Audio Carrier Frequency"/>
<s:select name="chargeType" label="Charge Type" list="{'PrePaid','PostPaid'}"/>
<s:select name="transmissionType" label="Transmission Type" list="{'HD','Standard'}"/>
<s:textfield name="channelCharge" label="Channel Charge"/>
<sj:submit value="Submit" button="true" validate="true" targets="result"  />
</s:form>
<div id="result">Result:</div>

我有带有注解验证的模型类Channel：

public class Channel {
    private int channelId;
    private String channelName;
    private String channelBand;
    private double vcFrequency;
    private double acFrequency;
    private String chargeType; //PrePaid or PostPaid
    private String transmissionType; //HD or Standard
    private double channelCharge;

    private Set<ChannelPackage> channelPackage;

    public Channel(){
        channelPackage=new HashSet<>();
    }

    public int getChannelId() {
        return channelId;
    }

    public void setChannelId(int channelId) {
        this.channelId = channelId;
    }

    @RequiredStringValidator(trim=true,type=ValidatorType.FIELD,message="Please enter valid channel name")
    public String getChannelName() {
        return channelName;
    }

    public void setChannelName(String channelName) {
        this.channelName = channelName;
    }
    @RequiredStringValidator(trim=true,type=ValidatorType.FIELD,message="Please enter valid channel band")
    public String getChannelBand() {
        return channelBand;
    }

    public void setChannelBand(String channelBand) {
        this.channelBand = channelBand;
    }
    @DoubleRangeFieldValidator(type = ValidatorType.SIMPLE,fieldName = "vcFrequency",minInclusive = "40",maxInclusive = "225",message = "The scale must be between ${minInclusive} and ${maxInclusive} (exclusive)")
    public double getVcFrequency() {
        return vcFrequency;
    }

    public void setVcFrequency(double vcFrequency) {
        this.vcFrequency = vcFrequency;
    }
    @DoubleRangeFieldValidator(type = ValidatorType.SIMPLE,fieldName = "acFrequency",minInclusive = "45",maxInclusive = "230",message = "The scale must be between ${minInclusive} and ${maxInclusive} (exclusive)")
    public double getAcFrequency() {
        return acFrequency;
    }

    public void setAcFrequency(double acFrequency) {
        this.acFrequency = acFrequency;
    }

    public String getChargeType() {
        return chargeType;
    }

    public void setChargeType(String chargeType) {
        this.chargeType = chargeType;
    }


    public String getTransmissionType() {
        return transmissionType;
    }

    public void setTransmissionType(String transmissionType) {
        this.transmissionType = transmissionType;
    }
    @DoubleRangeFieldValidator(type = ValidatorType.SIMPLE,fieldName = "channelCharge",minExclusive = "20.5",maxExclusive = "78.5",message = "The scale must be between ${minExclusive} and ${maxExclusive} (exclusive)")
    public double getChannelCharge() {
        return channelCharge;
    }

    public void setChannelCharge(double channelCharge) {
        this.channelCharge = channelCharge;
    }


    public Set<ChannelPackage> getChannelPackage() {
        return channelPackage;
    }

    public void setChannelPackage(Set<ChannelPackage> channelPackage) {
        this.channelPackage = channelPackage;
    }

    public String toString(){
        return channelId+": "+channelName;
    }

}

我的动作类实现了模型驱动接口。我的问题是：

• 即使我使用正确的数据提交表单，我的表单也会显示错误消息。

• 与错误消息一起，返回的输入结果显示在结果div中。这意味着单击提交按钮后，我在jsp页面上有两个表单。

• 如果我从struts.xml中删除jsonValidationWorkflowStack拦截器，我的表单将被提交两次。

这是提交后的屏幕截图：

请帮助我解决这个问题。