Openshift Java SQLite，无法打开/创建数据库文件

我正在尝试使用Java在openshift环境中创建/访问SQLite数据库文件。该代码在我正在测试的本地Tomcat服务器上运行良好，但在我将其部署到openshift环境时不起作用

相关代码如下所示，根据日志，我已经能够识别出发生故障的线路：

日志：

Apr 23, 2015 3:37:33 PM my_package.HelloWorld_sl doPost
INFO: jdbc:sqlite:/var/lib/openshift/5522c491fcf9335ab7000053/app-root/data/test
Apr 23, 2015 3:37:33 PM my_package.HelloWorld_sl doPost
INFO: Class Loaded
Apr 23, 2015 3:37:33 PM my_package.HelloWorld_sl doPost
INFO: Trying Database connection establishment

..
db_filename="jdbc:sqlite:"+ "data" + File.separatorChar + "test.db";
LOGGER.info(db_filename);

Class.forName("org.sqlite.JDBC");
LOGGER.info("Class Loaded");
LOGGER.info("Trying Database connection establishment"); //I see this message in logs, but not the next LOGGER message so it is the following line that fails.
dbc =DriverManager.getConnection(db_filename);
LOGGER.info("Database connection established");

（我在上述事件之后一无所获）

Java代码：

Apr 23, 2015 3:37:33 PM my_package.HelloWorld_sl doPost
INFO: jdbc:sqlite:/var/lib/openshift/5522c491fcf9335ab7000053/app-root/data/test
Apr 23, 2015 3:37:33 PM my_package.HelloWorld_sl doPost
INFO: Class Loaded
Apr 23, 2015 3:37:33 PM my_package.HelloWorld_sl doPost
INFO: Trying Database connection establishment

..
db_filename="jdbc:sqlite:"+ "data" + File.separatorChar + "test.db";
LOGGER.info(db_filename);

Class.forName("org.sqlite.JDBC");
LOGGER.info("Class Loaded");
LOGGER.info("Trying Database connection establishment"); //I see this message in logs, but not the next LOGGER message so it is the following line that fails.
dbc =DriverManager.getConnection(db_filename);
LOGGER.info("Database connection established");

提前谢谢。

---

Bob

可能是数据库文件不是您认为的位置，或者您没有访问该文件的权限。 是LOGGER.info（db_文件名）；还你想要什么？ 如果是，你（你的程序）有写权限吗

---

“dbc”也是一个打字错误，对吗？假设dbc是“jdbc”

dbc不是一个打字错误，前面声明的dbc如下：Connection dbc=null；此外，db文件也是我希望的地方，因为我能够在与db文件相同的文件夹中写入/读取纯文本文件。