connectdatabase.java

java(Swing) access做的成绩管理系统

package edu.xscj.conn;

import java.sql.*;

public class ConnectDataBase {
    public ConnectDataBase() {
    }

    public static Connection getConn() {
        Connection conn = null;
        // String strUrl =
        //         "jdbc:odbc:driver={Microsoft Access Driver (*.mdb)};DBQ=E:\\jbuilder\\xscj\\database\\xscj.mdb";//绝对路径
        String strUrl = "jdbc:odbc:xscj"; //xscj为数据源

        try {
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            conn = DriverManager.getConnection(strUrl);
        } catch (ClassNotFoundException ex) {
            ex.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return conn;
    }

    public static void main(String[] args) {
        ConnectDataBase connectdatabase = new ConnectDataBase();
        Connection con = connectdatabase.getConn();
        Statement stmt = null;
        ResultSet rst = null;
        String sql = "select * from student";
        try {
            stmt = con.createStatement();
            rst = stmt.executeQuery(sql);
            while (rst != null && rst.next()) {
                System.out.println(rst.getString(1));
                System.out.println(rst.getString(2));
                System.out.println(rst.getString(3));
                System.out.println(rst.getDate(4));
            }
        } catch (SQLException ex) {
            ex.printStackTrace();
        } finally {
            if (rst != null) {
                try {
                    rst.close();
                } catch (SQLException ex1) {
                }
            }
            if (stmt != null) {
                try {
                    stmt.close();
                } catch (SQLException ex3) {
                }
            }
            if (con != null) {
                try {
                    con.close();
                } catch (SQLException ex2) {
                }
            }
        }
    }
}