第一次结对作业

package com.servlet;

import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.bean.Line;
import com.dao.UserDao;
import com.service.UserService;

/**
 * Servlet implementation class servlet
 */
@WebServlet("rvlet")
public class servlet extends HttpServlet {
private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public servlet() {
        super();
        // TODO Auto-generated constructor stub
    }

/**
 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
 */
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub

}

/**
 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
 */
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
request.setCharacterEncoding("utf-8"); //1
response.setContentType("textml;charset=utf-8"); //2
response.setCharacterEncoding("utf-8"); //3
UserDao dao = new UserDao();
Line line = new Line();
ArrayList<String> array = new ArrayList<String>();
String startstopname=request.getParameter("startstopname");
String endstopname=request.getParameter("endstopname");
line.setStartstopname(startstopname);
line.setEndstopname(endstopname);
try {
int x=dao.CheckAll(line);
System.out.println("实际上传过来的值是"+x);
if(x==1) {
array=dao.Connectonlyoneline(line);
}
else if(x==2) {
array=dao.Connecttwoline(line);
}
else if(x==3){
array=dao.Connectthreeline(line);
}
else {
request.setAttribute("message", "请输入正确的站名！");
request.getRequestDispatcher("/Query.jsp").forward(request, response);
return;
}
//array=dao.Connectthreeline(line);
request.setAttribute("stop", array);
/* if(array.equals(null)) {

}*/
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally {

request.getRequestDispatcher("/result.jsp").forward(request, response);
}

}

}