有关传值，修改，刷新的问题(高手请进)

[happy2program]

test1.jsp

function SelectName()
{
var s="asdasd";
window.open("test2.jsp?change="+s);
window.deleteform.submit();
}

<%
String changeValue = "" ;
if(request.getParameter("change") != null) {
changeValue = request.getParameter("change").trim() ;
}
%>
<input type="text" value="<%=changeValue%>" name="change">
<input type="button" value="匹配" name="" onclick="SelectName()">

test2.jsp
<%
String s = request.getParameter("change");
System.out.println(s);
if(s!=null)
{
s="asfaF";
%>


如何将修改后的值传到test1.jsp并同时修改原来的值并刷新

[secrets001]

加在test2最后
response.sendRedirect("test1.jsp?change="+s);

[happy2program]

test1.jsp

function SelectName()
{
var s="asdasd";
window.open("test2.jsp?change="+s);
window.deleteform.submit();
}

<%
String changeValue = "" ;
if(request.getParameter("change") != null) {
changeValue = request.getParameter("change").trim() ;
}
%>
<input type="text" value="<%=changeValue%>" name="change">
<input type="button" value="匹配" name="" onclick="SelectName()">



test2.jsp
<script>
document.theform.set1.value="";
</script>
<%
String s = request.getParameter("change");
//通过s的值到数据库中搜索产生表单，
根据表单产生一个值放到document.theform.set1.value里
我如何将这个值传到test1.jsp并同时修改原来的值并刷新
%>

<form name=theform>
<input type="hidden" value="" name="set1">
</form>