src/com/action/liuyan_servlet.java

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package com.action;

import java.io.IOException;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
import java.util.Date;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.dao.DB;
import com.orm.Tcatelog;
import com.orm.Tgoods;
import com.orm.Tqiye;
import com.orm.Tuser;
import com.orm.Tliuyan; 
import com.service.liuService;

public class liuyan_servlet extends HttpServlet
{ 
	public void service(HttpServletRequest req,HttpServletResponse res)throws ServletException, IOException 
	{
		String type=req.getParameter("type");
		
		if(type.endsWith("liuyanAdd"))
		{
			liuyanAdd(req, res);
		}
	
		if(type.endsWith("liuyanMana"))
		{
			liuyanMana(req, res);
		}
		if(type.endsWith("liuyanhuifu"))
		{
			liuyanhuifu(req, res);
		}		
	}
	public void liuyanAdd(HttpServletRequest req,HttpServletResponse res)
	{		
		HttpSession session=req.getSession();
        Tuser user=(Tuser)session.getAttribute("user");
        String user_id=user.getId();
		int goods_id=Integer.parseInt(req.getParameter("goods_id"));
		String shijian=new Date().toLocaleString();
		String pinglun=req.getParameter("liuyanneirong");
		
		String sql="insert into t_liuyan(user_id,goods_id,shijian,neirong) " +
				   "values(?,?,?,?)";
		Object[] params={user_id,goods_id,shijian,pinglun};
		DB mydb=new DB();
		mydb.doPstm(sql, params);
		mydb.closed();
		
		req.setAttribute("message", "留言成功");
		req.setAttribute("path", "goods?type=goodsDetailQian&id="+goods_id+"");