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Thread: Problem with connecting to DataBase

  1. #1
    Junior Member
    Join Date
    Dec 2012
    Thanked 1 Time in 1 Post

    Default Problem with connecting to DataBase

    I'm trying to connect to database with jdbc in netbeans.
    I use this code :
        String host = "jdbc:derby://localhost:1527/MIRDataBase [mir on MIR]";
                String name = "mir";
                String pass = "mir" ; 
                con = DriverManager.getConnection( host, name ,pass );

    as you see I set username and password but I get this error :
    Jan 07, 2013 4:02:19 PM DataBase.Crawler_DataBase <init>
    SEVERE: null
    java.sql.SQLNonTransientConnectionException: User id length (0) is outside the range of 1 to 255.
    	at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source)
    	at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
    	at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
    	at java.sql.DriverManager.getConnection(DriverManager.java:579)
    	at java.sql.DriverManager.getConnection(DriverManager.java:221)
    	at DataBase.Crawler_DataBase.<init>(Crawler_DataBase.java:33)
    	at crawler.WebCrawler.<init>(WebCrawler.java:28)
    	at webScanner.WebResourceScanner.main(WebResourceScanner.java:62)
    Caused by: org.apache.derby.client.am.SqlException: User id length (0) is outside the range of 1 to 255.
    	at org.apache.derby.client.net.NetConnection.checkUserLength(Unknown Source)
    	at org.apache.derby.client.net.NetConnection.checkUser(Unknown Source)
    	at org.apache.derby.client.net.NetConnection.checkUserPassword(Unknown Source)
    	at org.apache.derby.client.net.NetConnection.flowConnect(Unknown Source)
    	at org.apache.derby.client.net.NetConnection.<init>(Unknown Source)
    	at org.apache.derby.client.net.NetConnection40.<init>(Unknown Source)
    	at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown Source)
    	... 6 more

    I've attached my db properties
    Does anybody know what's wrong with my connection ?
    Thank you
    Attached Images Attached Images

  2. #2
    Junior Member
    Join Date
    Dec 2012
    Thanked 1 Time in 1 Post

    Default Re: Problem with connecting to DataBase

    My problem solved but I want to explain about solution. it might helped someone
    problem was about apache setting. I add apache to server in service tab in netbeans and edit it's xml setting file (tomcat-users.xml) and add more access to my user with proper username and password :
    it's working now
    and one more point. if you want to create an application which has access to database you may add something like this :
    permission java.net.SocketPermission "", "connect, resolve";
    to .java.policy file

    by the way thank you java forum

  3. The Following User Says Thank You to ocean1991 For This Useful Post:

    copeg (January 11th, 2013)

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