总人数不对,哪里错了?
<%@page import="java.sql.*"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>按部门查看某年龄段</title>
</head>
<body>
<table border=1>
<tr>
<td>姓名</td>
<td>部门</td>
<td>年龄</td>
</tr>
<%
request.setCharacterEncoding("utf-8");
String bm = request.getParameter("bm");//注意
String agemin = request.getParameter("agemin");
String agemax = request.getParameter("agemax");
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://localhost:3307/hr";
Connection conn = DriverManager.getConnection(url,"root","aaaaaaaa");
Connection conn2 = DriverManager.getConnection(url,"root","aaaaaaaa");
String sql = "SELECT empname,bm,age FROM emp WHERE bm=? AND age BETWEEN ? AND ?";
String sql2 = "SELECT count(*) as totalEmp FROM emp WHERE age>? AND age<?";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setString(1,bm);
pstmt.setString(2, agemin);
pstmt.setString(3,agemax);
ResultSet rs = pstmt.executeQuery();
PreparedStatement pstmt2 = conn2.prepareStatement(sql2);
pstmt2.setInt(1, Integer.parseInt(agemin));
pstmt2.setInt(2,Integer.parseInt(agemax));
ResultSet rs2 = pstmt2.executeQuery();
rs2.next();
if(agemin==null)
{
agemin="0";
}
if(agemax==null)
{
agemax="0";
}
while(rs.next()){
%>
<tr>
<td><a href="findbyname.jsp?empname=<%=rs.getString("empname")%>"><%=rs.getString("empname")%></a></td>
<td><%=rs.getString("bm") %></td>
<td><%=rs.getString("age") %></td>
</tr>
<%
}
%>
<tr>
<td colspan="9">总人数:<%=rs2.getInt("totalEmp") %></td>
</tr>
<%
conn.close();
%>
</table>
</body>
</html>