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📄 mess_del.jsp

📁 java + sqlserver2000编写的一个网上购书系统,实现了一些基本的功能,但对于初学者来说这个系统已经足以起到帮助作用
💻 JSP
字号:
<%@ page language="java"  pageEncoding="GB2312"%>
<%@ page import="java.sql.*" %>
<jsp:useBean id="DB1" scope="page" class="ConnBean.conn"/>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>  
    <title>My JSP 'admin_del.jsp' starting page</title>
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>
  <body BGCOLOR="#FFCCCC">
 <%
   		int PageSize=5;
  		int CurPage=1;
  		int TotalPage=0;
  		int RecCount=0;
  		if(request.getParameter("page")!=null){
  			CurPage=Integer.parseInt(request.getParameter("page"));}
  			ResultSet rss=null;
		try{
			String strSQL="select count(*) as RecCount from message";
			rss=DB1.executeQuery(strSQL);
			if(rss.next()){
				RecCount=rss.getInt("RecCount");
			}
			rss=null;
			TotalPage=RecCount/PageSize+(RecCount%PageSize==0?0:1);
			strSQL="select top "+PageSize+" * from message where ID not in " +
			"(select top "+(CurPage-1)*PageSize+" ID  from message)";
			rss=DB1.executeQuery(strSQL);
			//rs.next();
			//out.print(rs.getString("ID"));
   	 while(rss.next()){
   	 	 String messno=rss.getString("ID");
   	     int count=0;
   		 if(request.getParameter("check"+messno)!=null)
   		 {
   			//out.println(rs2.getString("AdminID"));
   			String str1="delete from message where ID='"+messno+"'";
   			//out.print(str1);
   			count=DB1.executeUpdate(str1);
   			out.print("<BR>");
   		    //out.println(count);
   		}		
   	  }
   		//response.sendRedirect("admin.jsp");
   	}catch(SQLException e){out.print(e);}
 		out.println("<script language=javascript>");
		out.println("alert('恭喜你,删除成功!');");
		out.println("window.location.href='message.jsp';");
		out.println("</script>");
  %> 
  </body>
</html>

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