java - How to configure javadb in eclipse(part2)? -
this continuation of previous question how configure javadb in eclipse?. able made changes on code giving me error -> error: java.net.connectexception : error connecting server localhost on port 1527 message connection refused: connect. hope guys can me one.
here code:
import java.sql.connection; import java.sql.drivermanager; import java.sql.resultset; import java.sql.statement; public class test { public static void main(string[] args) { try { class.forname("org.apache.derby.jdbc.clientdriver").newinstance(); } catch (instantiationexception e) { e.printstacktrace(); } catch (illegalaccessexception e) { e.printstacktrace(); } catch (classnotfoundexception e) { e.printstacktrace(); } final string db_url = "jdbc:derby://localhost:1527/coffeedb;create=true"; try{ connection conn = drivermanager.getconnection(db_url); statement stmt = conn.createstatement(); string sql = ("create table coffee(description char(25),prodnum char(10) not null primary key,price double)"); stmt.execute(sql); sql = "insert coffee values('bolivian dark','14-001',8.95)"; stmt.executeupdate(sql); sql = "insert coffee values('bolivian medium','14-002',8.95)"; stmt.executeupdate(sql); sql = "insert coffee values('brazilian dark','15-001',7.95)"; stmt.executeupdate(sql); sql = "insert coffee values('brazilian medium','15-002',7.95)"; stmt.executeupdate(sql); sql = "insert coffee values('brazilian decaf','15-003',8.55)"; stmt.executeupdate(sql); sql = "insert coffee values('central american dark','16-001',9.95)"; stmt.executeupdate(sql); sql = "insert coffee values('central american medium','16-002',9.95)"; stmt.executeupdate(sql); sql = "insert coffee values('sumatra dark','17-001',7.95)"; stmt.executeupdate(sql); sql = "insert coffee values('sumatra decaf','17-002',8.95)"; stmt.executeupdate(sql); sql = "insert coffee values('sumatra medium','17-003',7.95)"; stmt.executeupdate(sql); sql = "insert coffee values('sumatra organic dark','17-004',11.95)"; stmt.executeupdate(sql); sql = "insert coffee values('kona medium','18-001',18.45)"; stmt.executeupdate(sql); sql = "insert coffee values('kona dark','18-002',18.45)"; stmt.executeupdate(sql); sql = "insert coffee values('french roast dark','19-001',9.65)"; stmt.executeupdate(sql); sql = "insert coffee values('galapagos medium','20-001',6.85)"; stmt.executeupdate(sql); sql = "insert coffee values('guatemalan dark','21-001',9.95)"; stmt.executeupdate(sql); sql = "insert coffee values('guatemalan decaf','21-002',10.45)"; stmt.executeupdate(sql); sql = "insert coffee values('guatemalan medium','21-003',9.95)"; stmt.executeupdate(sql); string sqlstatement = "select description coffee"; resultset result = stmt.executequery(sqlstatement); system.out.println("coffees found in database"); system.out.println("-----------------------------"); while(result.next()){ system.out.println(result.getstring("description")); } conn.close(); }catch(exception ex){ system.out.println("error: " + ex.getmessage()); } } }
i had been trying current code , found exception happens when server not being started. way solve start server in simple way:
go lib folder in extracted folder of derby server download on command prompt. me follows:
c:\>cd opt\db-derby-10.11.1.1-lib\lib c:\opt\db-derby-10.11.1.1-lib\lib>java -jar derbyrun.jar server start sat oct 03 16:26:29 ist 2015 : security manager installed using basic server security policy. sat oct 03 16:26:29 ist 2015 : apache derby network server - 10.11.1.1 - (1616546) started , ready accept connections on port 1527 there different way can start server in eclipse. need install plugin , start server. following references should you:
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