H2 database 操作操作内存表

本例开发工具为 NetBeans,使用b2前提安装jdk.

第一步:在官网下载驱动包 :http://www.h2database.com ,本例版本为: h2-1.4.192.jar

第二步:安装开发工具及jdk

(1) 开发工具为:netbeans 8.0.2

(2) jdk为 1.8.0.25

第三步:建立工程及代码如下

(1) 工程图 

(2) 代码如下

/*
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 * and open the template in the editor.
 */
package h2db.test;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import org.h2.tools.Server;   

/**
 *
 * @author NorthEastTycoon
 */
public class H2Demo {
    private Server server;   

    private String port = "8082";
    private static String sourceURL1 = "jdbc:h2:mem:h2db";
    private static String sourceURL2 = "jdbc:h2:tcp://192.168.19.1:8082/mem:h2db"; 

    private String user = "sa";
    private String password = "";   

    public void startServer() {
        try {
            System.out.println("正在启动h2...");
            server = Server.createTcpServer(
                    new String[] { "-tcpPort", port }).start();
        } catch (SQLException e) {
            System.out.println("启动h2出错：" + e.toString());
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }   

    public void stopServer() {
        if (server != null) {
            System.out.println("正在关闭h2...");
            server.stop();
            System.out.println("关闭成功.");
        }
    }   

    public void testH2() {
        try {
            // 加载驱动
            Class.forName("org.h2.Driver");

            // 创建连接
            Connection conn = DriverManager.getConnection(sourceURL1,user, password);
            Statement stat = conn.createStatement();   

            // 插入数据
            stat.execute("CREATE MEMORY Table table_one(NAME VARCHAR)");
            stat.execute("INSERT INTO table_one VALUES('this is my first program!')");

            // 查询数据
            ResultSet result = stat.executeQuery("select name from table_one ");
            int i = 1;
            while (result.next()) {
                System.out.println(i++ + ":" + result.getString("name"));
            }
            result.close();
            stat.close();
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }   

    public static void main(String[] args) {
        H2Demo h2 = new H2Demo();   

        // 开始服务
        h2.startServer();
        h2.testH2();
        // 关闭服务
        h2.stopServer();
    }
}

(3) 输出结果