📄 additem.jsp
字号:
<%@page import="java.sql.*"%>
<%@page import="java.util.*"%>
<%@page contentType="text/html;charset=GB2312"%>
<%@include file="opendata.jsp"%>
<%@include file="convert.jsp"%>
<%@include file="check.jsp"%>
<%!
int isempty(String str) //判断递交的字符串是否为空
{
if(str.length() ==0)
return (0);
else return (1);
}
%>
<%
int questionid = Integer.parseInt((String)session.getValue("questionid"));
String item[] = {request.getParameter("item1"),request.getParameter("item2"),
request.getParameter("item3"),request.getParameter("item4"),
request.getParameter("item5"),request.getParameter("item6"),
request.getParameter("item7"),request.getParameter("item8"),
request.getParameter("item9"),request.getParameter("item10"),};
//提取原有选项的记数
sql = "select ItemCount from Items where QuestionID = "+questionid;
rs = smt.executeQuery(sql);
out.print(sql+"提取原有选项的记数<p>");
int count[]=new int[10];
int j = 0;
while(rs.next())
{
count[j]=rs.getInt(1);
out.print(count[j]+"<br>");
out.print(item[j]);
j++;
}
out.print("j="+j+"<br>");
//删除选项
sql = "delete from Items where QuestionID = "+questionid;
smt.executeUpdate(sql);
out.print(sql+"删除选项"+"<br>");
Statement _smt=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
for(int i = 0,k = 0;i<=9;i++)
if(isempty(item[i])==1)
{
sql = "insert into Items(Item,QuestionID,ItemCount) values('"+item[i]+"','"+questionid+"',"+count[k]+")";//重新生成选项，并把记数恢复
_smt.executeUpdate(sql);
k++;
out.print(sql+"<p>");
out.print(item[i]+"<br>");
}
response.sendRedirect("edit.jsp?questionid="+questionid);
%>
<html>
<title>错误信息</title>
</html>
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