src/com/service/liuService.java

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package com.service;

import java.io.IOException;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.dao.DB;
import com.orm.Tcatelog;
import com.orm.Tgoods;
import com.orm.Torder;
import com.orm.TorderItem;

public class liuService
{
	public static List catelogList()
	{
		List catelogList=new ArrayList();
		String sql="select * from t_catelog where del='no'";
		Object[] params={};
		DB mydb=new DB();
		try
		{
			mydb.doPstm(sql, params);
			ResultSet rs=mydb.getRs();
			while(rs.next())
			{
				Tcatelog catelog=new Tcatelog();
				catelog.setId(rs.getInt("id"));
				catelog.setName(rs.getString("name"));
				catelogList.add(catelog);
		    }
			rs.close();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		mydb.closed();
		return catelogList;
	}
	
	public static String getUserName(String id)
	{
		String name="";
		
		String sql="select * from t_user where id=?";
		Object[] params={id};
		DB mydb=new DB();
		try
		{
			mydb.doPstm(sql, params);
			ResultSet rs=mydb.getRs();
			rs.next();
			name=rs.getString("loginname");