How can I start apache derby programmatically jar file?

问题

I have a Java application, which uses Apache Derby. Using Eclipse Export option, I exported it as JAR file. When I am running Eclipse, and the server is connected to port 1527, the JAR executes correctly.

However when eclipse is closed, (and the server is not connected to 1527) on executing jar, i get this error

java.sql.SQLNonTransientConnectionException: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused.

This is understandable. But i want to distribute the JAR. So is there a way to start the server programmatically, whenever JAR is executed?

回答1:

You can start the NetworkServer programmatically:

NetworkServerControl serverControl = new NetworkServerControl(InetAddress.getByName("myhost"),1621)

serverControl.shutdown();

回答2:

Simplest is to use embedded Derby

        Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
        conn = DriverManager.getConnection("jdbc:derby:" + DATA_STORE + ";create=true");

回答3:

You need to start the server programmatically.

How this is done is documented in the manual:

http://db.apache.org/derby/docs/10.8/adminguide/tadminconfig814963.html

来源：https://stackoverflow.com/questions/9725376/how-can-i-start-apache-derby-programmatically-jar-file