1.复制 hsqldb.jar 到 "d:\db"

2.运行 hsqldb.jar

3.

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4.先关闭后运行

运行:

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public class TestHsqldb{
	public static void main(String[] args) throws SQLException {
		testConnection();
	}

	public static void testConnection() throws SQLException {
		String path = "d:/db/db_unionhelper";
		Connection c = DriverManager.getConnection("jdbc:hsqldb:file:" + path, "root", "root");
		System.out.println("Connection:"+c);
	}

}