lvyoushejiao/src/com/action/lvyoushenqing_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.Tuser;
import com.orm.Tpinglun;
import com.service.liuService;

public class lvyoushenqing_servlet extends HttpServlet
{ 
	public void service(HttpServletRequest req,HttpServletResponse res)throws ServletException, IOException 
	{
		String type=req.getParameter("type");
		
		if(type.endsWith("lvyoushenqingAdd"))
		{
			lvyoushenqingAdd(req, res);
		}	
		if(type.endsWith("userList"))
		{
			userList(req, res);
		}
	}
	public void lvyoushenqingAdd(HttpServletRequest req,HttpServletResponse res)
	{		
		HttpSession session=req.getSession();
		int userID=0;
		if(req.getSession().getAttribute("user")!=null)
		{
			Tuser user=(Tuser)req.getSession().getAttribute("user");
			userID=user.getuserID();
		}
		String lyID=req.getParameter("lyID");
		String s=liuService.panduan_lvyoushenqing(userID,lyID);
		System.out.println(s);
		if(s.equals("yizhan"))
		{
			req.setAttribute("message", "你已经加入了该结伴旅游信息，不能重复加入");
			req.setAttribute("path", "lvyou?type=lvyouDetailQian&id="+lyID+"");
	        String targetURL = "/common/success.jsp";
			dispatch(targetURL, req, res);
		}
		else
		{
		String sql="insert into lvyoushenqing(userID,lyID) " +
				   "values(?,?)";
		Object[] params={userID,lyID};
		DB mydb=new DB();