📄 collupdate.jsp

📁 基于JSP的简单网上书店设计与实现（各模块完整齐全）

💻 JSP

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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<jsp:useBean id="bookCollect" scope="page" class="MyFly.Book.bookCollect" />
<jsp:useBean id="bookCollects" scope="page" class="MyFly.Book.bookCollects" />
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head>
<%!
   String fun(String str)
   {
      try
	  {
	      return new String(str.getBytes("ISO8859_1"));
	  }
	  catch(Exception e)
	  {
	     return "";
	  }
   }
%>
<%
String userid = (String) session.getAttribute("userid");
 if(userid.equals("")||userid==null)
{
  out.println("<Script language=JavaScript>alert('您还没登录，您无权查看');javascript:history.back();</Script>");
}
//System.out.print(request.getParameterValues("ProdId"));
if(request.getParameterValues("ProdId")==null)
{
   bookCollect.setUserid(userid);
   bookCollect.delete();
   out.println("<script language=javascript>alert('更新成功');JavaScript:history.back();</script>");
}
else{
String[] bookid  = request.getParameterValues("ProdId");
int t=bookid.length;//提高效率
for(int i=0;i<t;i++)
{

  bookCollect.setUserid(userid);
  bookCollect.setBookid(bookid[i]);
  String bookname=bookCollect.getBookname(bookid[i]);//得到书的名称
  bookCollect.setBookname(bookname);
  bookCollect.collupdate();
// messageQun.passmessage(fun(msgid[i]));
}
out.println("<script language=javascript>alert('更新成功');JavaScript:history.back();</script>");
}
%>
<body>

</body>
</html>

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