不使用ajax实现无刷新提交表单实例

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不使用ajax实现无刷新提交表单的例子

<s:form action="upload!upload.action" namespace="/" theme="simple" method="post" id="hidden_frame"enctype="multipart/form-data" target="hidden_frame"><div class="file-box" style="margin-left: 30px"><span style="white-space:pre"></span><input type='text' name='textfield' id='textfield' class='txt'/>  <span style="white-space:pre"></span><input type='button' class='btn' value='选择文件' /><span style="white-space:pre"></span><s:file name="upload" id="uuppload" cssClass="file" onchange="document.getElementById('textfield').value=this.value"/><span style="white-space:pre"></span><a value="上传参数 " onclick="uploadcanshu();" style="width: 100px;margin-left:30px;" class="btn">上传参数</a></div> </s:form><iframe name='hidden_frame' id="hidden_form" style="display:none"></iframe><script type="text/javascript">function uploadcanshu(){var uploads = $("#uuppload").val();if(uploads!=null&&uploads!=""){$("#hidden_frame").submit();$("#hidden_form").one("load", function () {<span style="white-space:pre"></span>var ahtml=$("#hidden_form").contents().find("body")[0].outerHTML;<span style="white-space:pre"></span>var data=$("#hidden_form").contents().find("body").html();<span style="white-space:pre"></span>var bb=$("#hidden_form").contents().find("body").find("pre").html();<span style="white-space:pre"></span>$("#jishucanshu").val(data);});}else{<span style="white-space:pre"></span>alert("上传失败，请重新上传！");}}</script>

action类里的代码：

（public class UploadAction extends ActionSupport）

ServletActionContext.getResponse().setContentType("text/html;charset=UTF-8");ServletActionContext.getResponse().setCharacterEncoding("UTF-8");ServletActionContext.getResponse().setHeader("Cache-Control", "no-cache");

ServletActionContext.getResponse().setHeader("Charset","UTF-8");

ServletActionContext.getResponse().getWriter().write("<BODY>"+strupload+"</BODY>");

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