Java 从Access数据库读取数据,插入到JavaDB数据库表中

来源：互联网发布：php 判断类是否存在编辑：程序博客网时间：2024/06/04 20:07

一段代码,实现的功能是从Access数据库读取表数据,然后依次全部插入到JavaDB数据库表中,类似于做拷贝.

import java.sql.*;

        String sql_insert =null;//将sql_insert定义成全局变量,是为了出错时,在catch部分能打印sql_insert内容,有助于调试.

        ResultSet rs = null;
        try {
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        String url = "jdbc:odbc:Driver={Microsoft Access Driver " +
            "(*.mdb, *.accdb)};DBQ=path to database\\Database1.accdb";//红色处应填入实际地址
        Connection con = DriverManager.getConnection(url);
        System.out.println("Connected!");

            Statement stmt = null;


           // SQL query command
            String SQL = "SELECT * FROM data";
            stmt = con.createStatement();
            //stmt.execute(SQL);

            rs = stmt.executeQuery(SQL);


            String driver = "org.apache.derby.jdbc.ClientDriver";//在derby.jar里面
        //String dbName="EmbeddedDB";
       String dbURL = "jdbc:derby://localhost:1527/PassWords;territory=zh_CN;user=admin;password=123456";// create=true表示当数据库不存在时就创建它
       try {
            Class.forName(driver);
            Connection conn = DriverManager.getConnection(dbURL);//启动嵌入式数据库
            Statement st = conn.createStatement();


            while(rs.next()){
                byte[] bts=null;
                String des = null;
                String usname = null;
                 String psw = null;
                String tips = null;
                String other = null;

                String ID = new String(rs.getBytes("ID"),"gbk");
                int id = Integer.parseInt(ID);

                bts = rs.getBytes("DESCRIPTION");
                if(bts!=null )
                    des = new String(bts,"gbk");

                bts = rs.getBytes("USERNAME");
                if(bts !=null)
                    usname = new String(bts,"gbk");

                bts = rs.getBytes("PASSWORD");
                if(bts !=null)
                    psw = new String(bts,"gbk");

                bts = rs.getBytes("TIPS");
                if(bts !=null)
                    tips = new String(bts,"gbk");


                bts = rs.getBytes("OTHERS");
                if(bts != null)
                    other = new String(bts,"gbk");

                sql_insert = "insert into APP.PSW(ID,DESCRIPTION,USERNAME,PASSWORD,TIPS,OTHERS) VALUES("+id+",'"+des+"','"+usname+"','"+psw+"','"+tips+"','"+other+"')";
            st.executeUpdate(sql_insert);//插入一条数据

            }
        } catch(Exception e){
            System.out.println(sql_insert);
            e.printStackTrace();

        }


        con.close();
        } catch (SQLException e) {
            System.out.println("SQL Exception: "+ e.toString());
        } catch (ClassNotFoundException cE) {
            System.out.println("Class Not Found Exception: "+
                cE.toString());
        }