src/com/servlet/chengjiServlet.java

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package com.servlet;

import java.io.IOException;
import java.io.PrintWriter;
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.bean.chengji;
import com.dao.chengjiDao;
import com.util.DBO;


import java.util.List;
import java.sql.ResultSet;

public class chengjiServlet extends HttpServlet  {
	public void service(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {
		request.setCharacterEncoding("gb2312");
		System.out.println("method"+request.getParameter("method"));
		String method=(String)request.getParameter("method");
		if(method.equals("insert")){//成绩添加
			insertM(request, response);
		}else if(method.equals("list")){//成绩列表
			ListM(request, response);
		}else if(method.equals("delete")){//成绩删除
			deleteM(request, response);
		}else if(method.equals("modifyindex")){//成绩修改页面
			modifyIndex(request, response);
		}
		else if(method.equals("modify")){//成绩修改
			modifyM(request, response);
		}else if(method.equals("detail")){//成绩详细信息
			detailM(request, response);
		}else if(method.equals("Plist")){//成绩列表信息
			PListM(request, response);
		}
	}
	private void insertM(HttpServletRequest request, HttpServletResponse response){//成绩添加
		chengjiDao dao=new chengjiDao();
		chengji chengji=new chengji();
		chengji.setCjid((String)request.getParameter("keyid"));
chengji.setZy((String)request.getParameter("zy"));
chengji.setCj((String)request.getParameter("cj"));
chengji.setXs((String)request.getParameter("xs"));
chengji.setFbsj((String)request.getParameter("fbsj"));
chengji.setFbr((String)request.getParameter("fbr"));

ResultSet rs=null;
DBO db =new DBO();


	response.setCharacterEncoding("gb2312");
		try {
			
			db.open();
			String sql="select * from zuoye where zybh='"+(String)request.getParameter("zy")+"'";