hsqldb实例代码
package com.dmmap.adaptor.dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.hsqldb.server.Server;
/**
* 便利单机法度应用HSQL的对象类，包含启动，封闭，连接。数据库默认不加密，用户为sa 密码空
*/
public class HsqlUtil {
public static final int PORT = 9002;
public static final String DB_NAME = "adaptor"; //数据库文件名，同时也是本类中的数据库名
public static final String DB_PATH = "./WebContent/database/";
public static final String USER_NAME = "sa";
public static final String PASSWORD = "";
public static final int SERVER_MODE = 0;
public static final int STAND_ALONE_MODE = 1; //In-Process
public static int mode = SERVER_MODE; //记录当前用什么模式，开辟时用Server，公布时用standalone
/**
* 启动数据库办事
*/
public static boolean startHSQL() {
if (mode == SERVER_MODE) {
Server server = new Server();//它可是hsqldb.jar里面的类啊。
server.setDatabaseName(0, DB_NAME);
server.setDatabasePath(0, DB_PATH + DB_NAME);
server.setPort(PORT);
server.setSilent(true);
server.start(); //主动多线程运行
System.out.println("hsqldb started...");
} else if (mode == STAND_ALONE_MODE) {
//standalone模式,打开连接就同时启动数据库,所以这里可以什么都不做
}
try {
Thread.sleep(800); // 守候Server启动
} catch (InterruptedException e) {
}
return true;
}
/**
* 封闭数据库办事
*/
public static boolean stopHSQL() {
try {
Statement statement = getConnection().createStatement();
statement.executeUpdate("SHUTDOWN;");
return true;
} catch (SQLException ex) {
Logger.getLogger(HsqlUtil.class.getName()).log(Level.SEVERE, null, ex);
return false;
}
}
/**
* 获取连接
*/
public static Connection getConnection() {
Connection conn = null;
try {
Class.forName("org.hsqldb.jdbcDriver");
if (mode == SERVER_MODE) {
conn = DriverManager.getConnection("jdbc:hsqldb:hsql://localhost:" + PORT + "/" + DB_NAME, USER_NAME, PASSWORD);
} else if (mode == STAND_ALONE_MODE) {
conn = DriverManager.getConnection("jdbc:hsqldb:file:" + DB_PATH + DB_NAME, USER_NAME, PASSWORD);
System.out.println(DB_PATH+DB_NAME);
}
} catch (ClassNotFoundException ex) {
Logger.getLogger(HsqlUtil.class.getName()).log(Level.SEVERE, null, ex);
} catch (SQLException ex) {
Logger.getLogger(HsqlUtil.class.getName()).log(Level.SEVERE, null, ex);
}
return conn;
}
}
//public static List<SMS> getSMS()
//{
// List<SMS> list=new ArrayList<SMS>();
// HsqlUtil.mode = HsqlUtil.STAND_ALONE_MODE;
// HsqlUtil.startHSQL();
// Connection conn = HsqlUtil.getConnection();
// try {
// Statement statement =conn.createStatement();
// ResultSet rs=statement.executeQuery("select * from record");
// while(rs.next())
// {
// SMS sms=new SMS();
// sms.setId(rs.getString(1));
// sms.setMobliePhone(rs.getString(2));
// sms.setContnet(rs.getString(3));
// sms.setTime(rs.getString(4));
// list.add(sms);
// }
// statement.close();
// } catch (SQLException ex) {
// Logger.getLogger(HsqlUtil.class.getName()).log(Level.SEVERE, null, ex);
// }
// HsqlUtil.stopHSQL();
// return list;
//}
//public static void initDB()
//{
// HsqlUtil.mode = HsqlUtil.STAND_ALONE_MODE;
// HsqlUtil.startHSQL();
// Connection conn = HsqlUtil.getConnection();
// try {
// Statement statement =conn.createStatement();
// statement.executeUpdate("create table record(id varchar(64) not null primary key ," +
// "mobliePhone varchar(20),contnet varchar(20),time varchar(20))");
// statement.close();
// } catch (SQLException ex) {
// Logger.getLogger(HsqlUtil.class.getName()).log(Level.SEVERE, null, ex);
// }
// HsqlUtil.stopHSQL();
//}
//public static void dropDB()
//{
// HsqlUtil.mode = HsqlUtil.STAND_ALONE_MODE;
// HsqlUtil.startHSQL();
// Connection conn = HsqlUtil.getConnection();
// try {
// Statement statement =conn.createStatement();
// statement.executeUpdate("drop table record");
// statement.close();
// } catch (SQLException ex) {
// Logger.getLogger(HsqlUtil.class.getName()).log(Level.SEVERE, null, ex);
// }
// HsqlUtil.stopHSQL();
//}