src/servlet/laoshi_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 util.DB;


public class laoshi_servlet extends HttpServlet
{
	public void service(HttpServletRequest req,HttpServletResponse res)throws ServletException, IOException 
	{
        String type=req.getParameter("type");
		
		if(type.endsWith("laoshiEditMe"))
		{
			laoshiEditMe(req, res);
		}
	}
	
	
	
	
	
	public void laoshiEditMe(HttpServletRequest req,HttpServletResponse res)
	{
		String bianhao=req.getParameter("bianhao");
		String xingming=req.getParameter("xingming");
		String xingbie=req.getParameter("xingbie");
		String nianling=req.getParameter("nianling");
		
		String loginpw=req.getParameter("loginpw");
		int id=Integer.parseInt(req.getParameter("id"));
		
		
		String sql="update t_laoshi set bianhao=?,xingming=?,xingbie=?,nianling=?,loginpw=? where id=?";
		Object[] params={bianhao,xingming,xingbie,nianling,loginpw,id};
		DB mydb=new DB();
		mydb.doPstm(sql, params);
		mydb.closed();
		
		req.setAttribute("msg", "修改成功，重新登陆后生效");
        String targetURL = "/common/msg.jsp";
		dispatch(targetURL, req, res);
	}
	

	public void dispatch(String targetURI,HttpServletRequest request,HttpServletResponse response) 
	{
		RequestDispatcher dispatch = getServletContext().getRequestDispatcher(targetURI);
		try