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POWhy isn't my sqlite database created?
 

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  1. POWhy isn't my sqlite database created?
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    <p>I have an issue using sqlite with Java. My application, on first launch, creates a folder in the folder where is the jar file, and in that folder places my sqlite db; the problem is that when I run my project from Netbeans, all works fine without any problem, but when I build the jar and try to do it from it, the application creates the folder but not the db inside, and the program crashes. Why? Here's the code from which I create the db and its folder:</p> <pre><code>public Db() { if (!checker()) { File f = new File("dbecprp"); f.mkdir(); try { String url = "jdbc:sqlite:dbecprp/dbecprp.db"; Class.forName("org.sqlite.JDBC"); conn = (Connection)DriverManager.getConnection(url); s = conn.createStatement(); s.executeUpdate("CREATE TABLE Utente (idUtente integer primary key autoincrement, nome varchar(45) not null, email varchar(45) not null, password varchar(15) not null);"); s.executeUpdate("CREATE TABLE Prodotto (idProdotto integer primary key autoincrement, tipologia varchar(3) not null, titolo varchar(45) not null, creatore varchar(45) not null, prezzo float not null, descrizione varchar(45), qta_magazzino int(3) not null);"); s.executeUpdate("CREATE TABLE Ordine (idOrdine integer primary key autoincrement, qta_prodotto int(3) not null, totale_ordine float not null, data_ordine long not null, nome_consegna varchar(45) not null, indirizzo_spedizione varchar(150) not null, idUtente int not null, idProdotto int not null, FOREIGN KEY (idUtente) REFERENCES Utente(idUtente), FOREIGN KEY (idProdotto) REFERENCES Prodotto(idProdotto));"); } catch (ClassNotFoundException | SQLException ex) { JOptionPane.showMessageDialog(null, "Db creation failed. Program will terminate."); System.exit(1); } filler(); } } public boolean checker() { File f = new File("dbecprp"); return f.isDirectory(); } </code></pre> <p>Here's the clean&amp;build output:</p> <pre><code> ant -f C:\\Users\\paolo2\\Documents\\NetBeansProjects\\Server clean jar init: deps-clean: Updating property file: C:\Users\paolo2\Documents\NetBeansProjects\Server\build\built-clean.properties Deleting directory C:\Users\paolo2\Documents\NetBeansProjects\Server\build clean: init: deps-jar: Created dir: C:\Users\paolo2\Documents\NetBeansProjects\Server\build Updating property file: C:\Users\paolo2\Documents\NetBeansProjects\Server\build\built-jar.properties Created dir: C:\Users\paolo2\Documents\NetBeansProjects\Server\build\classes Created dir: C:\Users\paolo2\Documents\NetBeansProjects\Server\build\empty Created dir: C:\Users\paolo2\Documents\NetBeansProjects\Server\build\generated-sources\ap-source-output Compiling 4 source files to C:\Users\paolo2\Documents\NetBeansProjects\Server\build\classes Note: Some input files use unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. compile: Created dir: C:\Users\paolo2\Documents\NetBeansProjects\Server\dist Copying 1 file to C:\Users\paolo2\Documents\NetBeansProjects\Server\build Not copying library C:\Users\paolo2\Documents\NetBeansProjects\Server\dist\lib\sqlite-jdbc-3.7.2.jar , it can't be read. Copy libraries to C:\Users\paolo2\Documents\NetBeansProjects\Server\dist\lib. Building jar: C:\Users\paolo2\Documents\NetBeansProjects\Server\dist\Server.jar To run this application from the command line without Ant, try: java -jar "C:\Users\paolo2\Documents\NetBeansProjects\Server\dist\Server.jar" jar: BUILD SUCCESSFUL (total time: 7 seconds) </code></pre> <p>Maybe the problem is the sqlite-jdbc-3.7.2.jar that is not included... I used to add it manually, but maybe it doesn't work because of it. </p>
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    1. UStenik
    1. UStenik
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    1. This table or related slice is empty.
    1. COWhat's in the exception which you don't care about?
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      1. POWhy isn't my sqlite database created?
      1. USKai
    2. COIf the directory already exists the code won't even try to create the database. Is this intended?
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      1. POWhy isn't my sqlite database created?
      1. USKai
    3. COYes, but the directory does not exist in the first launch of the application; it is made in order to check at every launch if is first launch or not
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      1. POWhy isn't my sqlite database created?
      1. UStenik
 

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