aptitudepaikebean.java

选排课系统功能的设计上

package com.bean;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import com.util.*;

public class AptitudePaikeBean {
	Connection conn = null;
	Statement st = null;
	ResultSet rs = null;
	ArrayList kecheng = new ArrayList();
	ArrayList banji = new ArrayList();
	ArrayList jiaoshi = new ArrayList();
	ArrayList laoshi = new ArrayList();
	
	public ArrayList getKecheng(String zhuanye,String nianji){
		conn = DBConn.getConn();
		try {
			st = conn.createStatement();
			rs = st.executeQuery("select a.*,b.*,c.* from kecheng a,kechengtime b,zhuanye c where a.kechengid=b.kechengid and a.zhuanyeid=c.zhuanyeid and a.zhuanyeid='"+zhuanye+"' and a.nianji='"+nianji+"'");
			while(rs.next()){
				ArrayList alRow = new ArrayList();
				alRow.add(rs.getString(1));
				alRow.add(rs.getString(2));
				alRow.add(rs.getString(3));
				alRow.add(rs.getString(4));
				alRow.add(rs.getString(5));
				alRow.add(rs.getString(7));
				alRow.add(rs.getString(9));
				alRow.add(rs.getString(10));
				alRow.add(rs.getString(11));
				alRow.add(rs.getString(12));
				kecheng.add(alRow);
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			DBConn.close(conn,st,rs);
		}
		return kecheng;
	}
	
	public ArrayList getBanji(String zhuanye,String nianji){
		conn = DBConn.getConn();
		try {
			st = conn.createStatement();
			rs = st.executeQuery("select * from banji where zhuanyeid='"+zhuanye+"' and nianji='"+nianji+"'");
			while(rs.next()){
				ArrayList alRow = new ArrayList();
				alRow.add(rs.getString(1));
				alRow.add(rs.getString(2));
				alRow.add(rs.getString(3));
				alRow.add(rs.getString(4));
				alRow.add(rs.getString(5));
				banji.add(alRow);
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			DBConn.close(conn,st,rs);
		}
		return banji;
	}
	
	public ArrayList getJiaoshi(){
		conn = DBConn.getConn();
		try {
			st = conn.createStatement();
			rs = st.executeQuery("select * from jiaoshi");
			while(rs.next()){
				ArrayList alRow = new ArrayList();
				alRow.add(rs.getString(1));
				alRow.add(rs.getString(2));
				alRow.add(rs.getString(3));
				jiaoshi.add(alRow);
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			DBConn.close(conn,st,rs);
		}
		return jiaoshi;
	}
	
	public ArrayList getLaoshi(){
		conn = DBConn.getConn();
		try {
			st = conn.createStatement();
			rs = st.executeQuery("select * from laoshi");
			while(rs.next()){
				ArrayList alRow = new ArrayList();
				alRow.add(rs.getString(1));
				alRow.add(rs.getString(2));
				alRow.add(rs.getString(3));
				laoshi.add(alRow);
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} finally {
			DBConn.close(conn,st,rs);
		}
		return laoshi;
	}

}