src/servlet/chengji_servlet.java

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package servlet;

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

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import service.utilService;
import util.DB;

import model.Tchengji;
import model.Txuesheng;

public class chengji_servlet extends HttpServlet
{
	public void service(HttpServletRequest req,HttpServletResponse res)throws ServletException, IOException 
	{
        String type=req.getParameter("type");
		
		if(type.endsWith("chengjiAdd"))
		{
			chengjiAdd(req, res);
		}
		if(type.endsWith("chengjiMana"))
		{
			chengjiMana(req, res);
		}
		if(type.endsWith("chengjiDel"))
		{
			chengjiDel(req, res);
		}
		
		if(type.endsWith("chengjiMine"))
		{
			chengjiMine(req, res);
		}
		
	}
	
	public void chengjiAdd(HttpServletRequest req,HttpServletResponse res)
	{
		int xuesheng_id=Integer.parseInt(req.getParameter("xuesheng_id"));
		int kecheng_id=Integer.parseInt(req.getParameter("kecheng_id"));
		int fenshu=Integer.parseInt(req.getParameter("fenshu"));
		String shijian=req.getParameter("shijian");
		
		String sql="insert into t_chengji(xuesheng_id,kecheng_id,fenshu,shijian) values(?,?,?,?)";
		Object[] params={xuesheng_id,kecheng_id,fenshu,shijian};
		DB mydb=new DB();
		mydb.doPstm(sql, params);
		mydb.closed();
		
		req.setAttribute("message", "操作成功");