webservice返回xml去除第一行代码方法

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ReExpConsignInfo>
    <ReExpConsignInfos>
        <ExpBILLNO> 924230235758</ExpBILLNO>
        <ReturnFlag>1</ReturnFlag>
        <ReturnMsg>Susscce</ReturnMsg>
    </ReExpConsignInfos>
    <ReExpConsignInfos>
        <ExpBILLNO> 9242302357</ExpBILLNO>
        <ReturnFlag>1</ReturnFlag>
        <ReturnMsg>Susscce</ReturnMsg>
    </ReExpConsignInfos>
</ReExpConsignInfo>
设置这两个属性
    marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); 
    marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true); 

<ReExpConsignInfo>
    <ReExpConsignInfos>
        <ExpBILLNO> 924230235758</ExpBILLNO>
        <ReturnFlag>1</ReturnFlag>
        <ReturnMsg>Susscce</ReturnMsg>
    </ReExpConsignInfos>
    <ReExpConsignInfos>
        <ExpBILLNO> 9242302357</ExpBILLNO>
        <ReturnFlag>1</ReturnFlag>
        <ReturnMsg>Susscce</ReturnMsg>
    </ReExpConsignInfos>
</ReExpConsignInfo>