dunque utilizzo jbuilder X come editor, ho creato 2 classi da 10 righe ognune per connettersi al db mysql ma quando compilo mi da problemi
Exception in thread "main" java.lang.NoClassDefFoundError: sincosald
non riesco a capire dove sbaglio le path mi pare siano giuste...
comunque eccole:
/home/abaddon/JBuilderX/jdk1.4/bin/java -classpath "/home/abaddon/jbproject/sincosald/classes:/home/abaddon/JBuilderX/jdk1.4/jre/lib/im/indicim.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/im/thaiim.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/ext/dnsns.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/ext/sunjce_provider.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/ext/ldapsec.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/ext/localedata.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/jsse.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/plugin.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/sunrsasign.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/charsets.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/rt.jar:/home/abaddon/JBuilderX/jdk1.4/jre/lib/jce.jar:/home/abaddon/JBuilderX/jdk1.4/jre/javaws/javaws.jar:/home/abaddon/JBuilderX/jdk1.4/lib/tools.jar:/home/abaddon/JBuilderX/jdk1.4/lib/dt.jar:/home/abaddon/JBuilderX/jdk1.4/lib/htmlconverter.jar:/home/abaddon/JBuilderX/jdk1.4/demo/jfc/Java2D/Java2Demo.jar:/home/abaddon/JBuilderX/jdk1.4/demo/plugin/jfc/Java2D/Java2Demo.jar:/usr/share/jdbc-mysql/lib/mysql-connector-java-3.0.11-stable-bin.jar" sincosald
Exception in thread "main" java.lang.NoClassDefFoundError: sincosald
e questo è il codice:
classe sincosald con main
classe dbcodice:package sincosald; public class sincosald { public sincosald() { } public static void main(String[] args) { sincosald sincosald1 = new sincosald(); try { System.out.println("Avvio applicazione"); db db = new db(); if (db.connection() == 1) { System.out.println("connessione avvenuta"); } } catch (Exception ex) { //errori vari } } }
codice:package sincosald; import java.sql.*; public class db { Connection conn; public db() { } public int connection() { try { //caricamento driver Class.forName("com.mysql.jdbc.Driver"); conn = DriverManager.getConnection( "jdbc:mysql://localhost/sincosald?user=root&password=marzia"); } catch (Exception ex) { //handele error } return 1; } }
ho provato a smanettare un po con le opzioni ma senza risultato(

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