页面按条件查询后的返回

js:

<script language="javascript">
function goUrl(){
     // var st=document.referrer  //获取上次url
    var str=document.location.search;  //获取url后面的参数
    var ss=encodeURI(str);   //进行编码
window.location.href="carshop_getshopcarMembersList"+ss;
}
</script>

html:

<a href="javascript:goUrl();">返回上一页</a>

java后台:

uname= java.net.URLDecoder.decode(uname, "UTF-8");