在form里设置一个名为"刷新"的按钮,点击后submit给本页
<%
String txt1 = request.getAttribute("txtfield1");
String txt2 = request.getAttribute("select1");
if(txt1==null) txt1="";
if(txt2==null) txt2="";
%>document.form1.txtfield1.value = <%=txt1%>
document.form1.select1.value = <%=txt2%>
<%
String txt1 = request.getAttribute("txtfield1");
String txt2 = request.getAttribute("select1");
if(txt1==null) txt1="";
if(txt2==null) txt2="";
%>document.form1.txtfield1.value = <%=txt1%>
document.form1.select1.value = <%=txt2%>
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