试了好久都不能解决的问题？请求帮助

Question

out.println("<script language='javascript'>");
 out.println("alert('删除成功！！')");
out.println("location.href='admin_article_manage.jsp？classLevel='"+classLevel+"'&id='"+id+"''");
out.println("</script>"); 代码作用是在删除完了之后返回刚才的页面，classLevel和id都是前面页面传过来的值
恳请知道的给我看看

Answer 1

out.println("window.location='admin_article_manage.jsp？classLevel='"+classLevel+"'&id='"+id+"''");

Answer 2

out.println("<script language='javascript'>");
 out.println("alert('删除成功！！')");
out.println("location.href='admin_article_manage.jsp？classLevel="+classLevel+"&id="+id+"'");
out.println("</script>"); '引号