submit提交后怎么刷新页面

<form name="form2" target="test" enctype="multipart/form-data" method="post" action="<%=basePath%>/servlet/UploadFile">

<div class="sidebar-right" >

<div class="content-box">

<div class="content-frame">

<div class="frame-header">

<p>radiusEAP配置</p>

</div>

<div class="frame-body">

<div class="radius-content">

<ul>

<li>

<label>私钥文件密码:</label>

<input id="param1" name="private_key_password"/>

</li>

<li>

<label>私钥文件路径:</label>

<input id="param2" name="private_key_file" type="hidden" /><input type="file" name="file" id="file"/>

</li>

<li>

<label>服务证书路径:</label>

<input id="param3" name="certificate_file" type="hidden" /><input type="file" name="file" id="file"/>

</li>

<li>

<label>根证书路径:</label>

<input id="param4" name="CA_file" type="hidden" /><input type="file" name="file" id="file"/>

</li>

<li>

<button id="save-btn-Id" class="save-btn"></button>

</li>

</ul>

</div>

</div>

</div>

<div class="frame-bottom"></div>

</div>

</div></form><iframe name="test" style= "display:none "></iframe>

借用iframe