WebRoot/sl_post.jsp

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<%@ page language="java"  pageEncoding="gb2312" import="java.sql.*" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%
request.setCharacterEncoding("gb2312"); 
response.setCharacterEncoding("gb2312"); 
%>
<jsp:useBean id="connDbBean" scope="page" class="db.db"/>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'adminyanzheng.jsp' starting page</title>
    

  </head>
  
  <body>
  <%
 

String sl=request.getParameter("sl");String id=request.getParameter("id");

String sql="update gwc set shuliang="+sl+" where id="+id;

  	  	connDbBean.executeUpdate(sql);
  	  	out.print("<script>alert('修改成功!!');location.href='dd_list.jsp';</script>");
  	  


 %>
  </body>
</html>