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  • JDBC_ODBC

    JDBC连接数据库

    1、把jar包添加到库：DmJdbcDriver18.jar（在安装目录/drivers/jdbc下）因为我使用的jdk版本是11，所以用DmJdbcDriver18，它支持1.8及以上版本的jdk。

    创建表并进行增删改查操作

    package DM;
import java.sql.*;
/**
 * @author：Hyunfeng
 * @date：2021/1/4
 */
public class ConnectDM8
{
    static String jdbcString = "dm.jdbc.driver.DmDriver";
    static String urlString = "jdbc:dm://localhost:5236"; // 定义连接用户名
    static String userName = "SYSDBA"; // 定义连接用户口令
    static String password = "SYSDBA"; // 定义连接对象
    static Connection conn = null;
    public static void findAll()
    {
        try
        {
            Class.forName(jdbcString);
            conn = DriverManager.getConnection(urlString, userName, password);
            Statement stmt = conn.createStatement();
            ResultSet resultSet = stmt.executeQuery("select * from DMHR.JOB");
            while(resultSet.next())
            {
                System.out.print("JOB_ID:" + resultSet.getInt(1));
                System.out.print(" JOB_TITLE:" + resultSet.getString(2));
                System.out.print(" MIN_SALARY:" + resultSet.getInt(3));
                System.out.println(" MAX_SALARY:" + resultSet.getInt(4));
            }
            resultSet.close();
            stmt.close();
            conn.close();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    public static void createTble()
    {
        try
        {
            Class.forName(jdbcString);
            conn = DriverManager.getConnection(urlString, userName, password);
            Statement stmt = conn.createStatement();
            // int i = stmt.executeUpdate("create table users(uid int,uname varchar(10));");
            boolean flag = stmt.execute("create table users(uid int,uname varchar(10));");
            if(flag) System.out.println("建表成功");
            else System.out.println("建表失败");
            System.out.println(flag);
            stmt.close();
            conn.close();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    public static void insert()
    {
        try
        {
            Class.forName(jdbcString);
            conn = DriverManager.getConnection(urlString, userName, password);
            Statement stmt = conn.createStatement();
            int i = stmt.executeUpdate("insert into users values(1,'messi') ");
            if(i != 0) System.out.println("插入成功");
            else System.out.println("插入失败");
            stmt.close();
            conn.close();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    public static void delete()
    {
        try
        {
            Class.forName(jdbcString);
            conn = DriverManager.getConnection(urlString, userName, password);
            Statement stmt = conn.createStatement();
            int i = stmt.executeUpdate("delete users where uid=1");
            if(i != 0) System.out.println("删除成功");
            else System.out.println("删除失败");
            stmt.close();
            conn.close();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    public static void main(String[] args)
    {
        // createTble();
        // insert();
        // delete();
        findAll();
    }
}

    ODBC配置

    Linux 环境中配置ODBC（以root 配置）

    1、检查gcc 包

    [root@localhost ~]# rpm -aq|grep gcc

    没有的话就安装： yum install gcc -y

    2、安装unixODBC-2.3.9

    1)解压：tar -xvf unixODBC-2.3.9.tar.gz

    cd unixODBC-2.3.0

    2）./configure

    3）make &&. make install

    3、编辑配置文件odbc.ini、odbcinst.ini

    vi /usr/local/etc/odbc.ini

    [dm8]
Description = DM ODBC DSN
Driver = DM8 ODBC DRIVER
SERVER = localhost
UID = SYSDBA
PWD = SYSDBA
TCP_PORT = 5236

    vi /usr/local/etc/odbcinst.ini

    [DM8 ODBC DRIVER]
    Description = DM ODBC DSN
    DRIVER = /home/dmdba/dmdbms/bin/libdodbc.so

    4、切换到dmdba用户登录

    su - dmdba

    isql dm8

    windows
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  • 原文地址：https://www.cnblogs.com/hong-yf/p/14764969.html
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