Problem when connecting locally to Oracle Database 10g from Java code

Question

Good afternoon,
I try to connect to my local Oracle 10g from JAVA code. Could somebody tells me what are the 'values' to enter in place of 'value1, value2, value3' in the following:
final String connectionURLThin = "jdbc:oracle:thin:@value1:value2:value3";
I tried to put my 'user' and 'pw' credentials I used when connecting with SQL*PLUS:
value1=my_user_name
value2=my_pw
value3=my_schema
but it doest work. Besides where could have I to put the 'WORKSPACE" name?
Thanks for any help.
Claude
Details:
ERR MESSAGE----------------------
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/dms/instrument/ExecutionContextForJDBC
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:365)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:854)
at java.sql.DriverManager.getConnection(DriverManager.java:620)
at java.sql.DriverManager.getConnection(DriverManager.java:200)
at javaapplication6.ConnectionExample.driverManager(ConnectionExample.java:138)
at javaapplication6.Main.main(Main.java:36)
Caused by: java.lang.ClassNotFoundException: oracle.dms.instrument.ExecutionContextForJDBC
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:264)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:332)
... 8 more
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
---------------------ERR MESSAGE
JAVA code------------------it compiles but throw an error when running there -> (*)...
final String driverClass = "oracle.jdbc.driver.OracleDriver";
final String connectionURLThin = "jdbc:oracle:thin:@jeffreyh3:1521:CUSTDB";
final String userID = "scott";
final String userPassword = "tiger";
final String queryString = "SELECT" +
" user " +
" , TO_CHAR(sysdate, 'DD-MON-YYYY HH24:MI:SS') " +
"FROM dual";
public void driverManager() {
Connection con = null;
Statement stmt = null;
ResultSet rset = null;
try {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
con = DriverManager.getConnection(connectionURLThin, userID, userPassword); // (*) prob here
stmt = con.createStatement ();
rset = stmt.executeQuery(queryString);
rset.close();
stmt.close();
} catch (SQLException e) {e.printStackTrace();
--------------------JAVA JDK 1.6
My system ------------------------
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production

Answer 1

Yes, the network connection could not be established. Like the error said.
What you're asking about is the exact reason, but that could be any number of things and not at all related to code. You could have the wrong host, the wrong port. A firewall could be blocking the outgoing connection, a firewall could be blocking the incoming connection. Etc. etc.