src/com/dgy/dao/TeacherDao.java

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package com.dgy.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import com.dgy.bean.TeacherBean;
import com.dgy.util.DBManager;

public class TeacherDao {

	/**
	 * @param args
	 */
	public static void addTeacher(String tname,String tsex,String tcontact,String tdate){
		Connection con =  DBManager.getConn();
		PreparedStatement pstmt = null;
		String sql = "insert into teacher (tname,tsex,tcontact,tdate,tstate,cstate) values(?,?,?,?,'在职','未分配')";
		try {
			pstmt = con.prepareStatement(sql);
			pstmt.setString(1, tname);
			pstmt.setString(2, tsex);
			pstmt.setString(3, tcontact);
			pstmt.setString(4, tdate);


			pstmt.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				pstmt.close();
				con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	
	public static void dimission(int tid){
		Connection con =  DBManager.getConn();
		PreparedStatement pstmt = null;
		String sql = "update teacher set tstate='离职' where tid=?";
		try {
			pstmt = con.prepareStatement(sql);
		
			pstmt.setInt(1, tid);
			pstmt.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				pstmt.close();
				con.close();