public static List<User>selectByID(){
List<User>list=new ArrayList<User>();
Connection connection=getConnection();
try {
PreparedStatement pt=connection.prepareStatement("select id,usname,phone,email from user where id in(1,2)");
ResultSet rs=pt.executeQuery();
while(rs.next()){
User user=new User();
user.setId(rs.getInt(1));
user.setUsname(rs.getString(2));
user.setPhone(rs.getString(3));
user.setEmail(rs.getString(4));
list.add(user);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return list;
}
public static Connection getConnection(){
try {
Class.forName("com.mysql.jdbc.Driver");
String url="jdbc:mysql://localhost:3306/db";
String usname="root";
String uspwd="root";
Connection connection=DriverManager.getConnection(url, usname, uspwd);
if(connection!=null){
return connection;
}
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
<%@page import="com.controlle.UserControoler"%>
<%@page import="com.pojo.User"%>
<%@page import="java.util.List"%>
<%@ 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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<table>
<tr>
<td>ID</td>
<td>Name</td>
<td>phone</td>
<td>email</td>
</tr>
<%
List<User>list=UserControoler.selectByID();
for (int i = 0; i < list.size(); i++) {
User use = new User();
use = (User) list.get(i);
%>
<tr>
<td><%=use.getId()%></td>
<td><%=use.getUsname()%></td>
<td><%=use.getPhone()%></td>
<td><%=use.getEmail()%></td>
</tr>
<%
}
%>
</table>
</body>
</html>