Java Program accessing hardware driver

I am planning to develope a project with a USB smart card reader. The USB smart card reader is for some form of authenication purpose of the card holder to verify that the authenticated user is using the program. The application will be a web based program in which a java applet (or java application) will be developed for the web page to access the local USB smart card reader. Can Java Applet has some form of ability to access the hardware, either by accessing the smart card API or it can directly access the USB port to read/write information directly to the smart card reader, provided that the USB reader can provide the low-level communication protocol.

You will have to sign your applet
And you might also need native libraries to access
the card readerThanks for your prompt help.
Because I am quite new to Java, I might ask some naive question.
When you "sign" the applet, which I believe it will be done in the browser setting to trust the applet, this will loosen the security concern of the applet, right?
The native libraries should then be in the form of a DLL in windows environment which the Java applet can call, right? And could you provide some sample code that how a DLL function call can be integrated into Jave.
Thanks again for your help.

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How a java program accessable by another java program?

Dear all,
Iam had developed a program which talks to serial port. This program should be intergrated with another main java program . I don't want a function (subroutine )call to my program. i want any other methods to access my program by main java program , which should be fast.

You could serach for "interprocess communication". The main techniques available are pipes and share memory. This means that the two Java programs run as totally separated processes.
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http://java.sun.com/products/javacomm/

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I have Oracle 10 G under vista on my desktop. I am trying to write a simple java program to access/update database tables. I saw in one of oracle example to import 2 packages - namely --- import oracle.jdbc.driver.*; import oracle.sql.*;
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import java.util.*;
import oracle.jdbc.driver.*;
import oracle.sql.*;
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Hunold: 9000.0
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Connection conn=null;
try // may throw a SQLException
conn = getConnection();
doQuery (conn);
catch (SQLException e)
System.err.println(e.getErrorCode() + ": " + e.getMessage());
finally // make sure the connection is closed
if (conn != null) try {conn.close();} catch (SQLException e) {};
//out.close(); // close PrintWriter stream
private static Connection getConnection() throws SQLException
String username = "scott";
String password = "tiger";
String url = "jdbc:oracle:thin:@localhost:1521:newora";
// "jdbc:oracle:thin:@localhost:1521:COCKYJOB";
Connection conn = null;
String driver = "oracle.jdbc.driver.OracleDriver";
try {
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
} catch ( ClassNotFoundException cnfex ) {
System.err.println(
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e.printStackTrace();
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st = c.createStatement();
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rs = st.executeQuery(query);
// process results
while (rs.next())
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System.out.println("Emp Name:" + eName +
"Job: " + eJob +
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if (rs != null) try {rs.close();} catch (Exception e) {};
// close the statement if it exists
if (st != null) try {st.close();} catch (Exception e) {};
Edited by: user455788 on Dec 19, 2008 9:13 PM

You can download the drivers from http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/index.html.
Note that oracle.jdbc.driver is desupported after 10.2, http://forums.oracle.com/forums/ann.jspa?annID=201, so you might want to consider using a DataSource to provide Connections.
E.G.
{message:id=2819114}

Is java suitable for hardware related programming?

in general, is java suitable for hardware related programming?

One small hurdle is that device driver writing often requires very specific machine instructions that are not directly available to any high level language. IN, OUT, LOCK (lock memory bus), VERR (Verify for Reading), RDMSR (Read Model-Specific Registers), move from/to memory without going through the MMU address mapping, ... (those are from x86, there are a few dozen of them.)
In C, you'd write assembler glue. In Java, you'd write assembler glue and call it through JNI.
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How to access database file on CDROM from Java Programe??

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Hi everybody,
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Inder

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Accessing RUN through java programming

Sir,
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But I cant access the drives for eg: I wrote c:\programfiles as input but i got an exception like this
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at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
at java.lang.ProcessImpl.start(ProcessImpl.java:30)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
at java.lang.Runtime.exec(Runtime.java:591)
at java.lang.Runtime.exec(Runtime.java:429)
at java.lang.Runtime.exec(Runtime.java:326)
at ex.main(ex.java:10)
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Exception java.sql.SQLException: [Microsoft][ODBC Microsoft Access 97 Drive

Hi,
I am writing a simple program wihich will display the list of table for a given database. Currently I am using JDBC-ODBC bridge for accessing MS Acccess data base. When I call getTables method of DatabaseMetaData. Following Exception was thrown. Any clue what could be the reason for this?
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at sun.jdbc.odbc.JdbcOdbcDatabaseMetaData.getTables(JdbcOdbcDatabaseMetaData.java:2395)
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Java.sql.SQLException: Error accessing jdbc driver

Hi,
We are using WebLogic Server 7.0 as Application Server.
We now create a connection pool named regPool and
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jdbc:weblogic:pool:regPool, props = {enableTwoPhaseCommit=false,
jdbcTxDataSource=true, connectionPoolID=regPool}
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at weblogic.jdbc.jts.Driver.connect(Driver.java:129)
at
weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java
:265)
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javax.ejb.FinderException: Exception in findAllEmr while preparing or
executing statement: 'null'
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at
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According to the exception message, it looks
like the connection fail between WLS and Oracle 9.2.
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I change the table-name in the weblogic-cmp-rdbms-jar.xml
to a name that doesn't exist in the database.
Then, re-package the EJB, copy it to server and restart the server.
A exception occurred that says the table doesn't exist.
So, in this case, it looks like the datasource works and
connection is fine.
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Jimmy Chang

Hi!
I am a default user to the databse server. I connect to the database with '\' as the username and blank passoword(I mean with Network authentication may be).When I am trying to create connection using
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How should I go about it?
Thanks for your help.
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We created an adobe form, with few text boxes, and emailed to user for filing his data into the pdf file.
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How do you access things like volume in a java program

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We have a requirement to integrate attendance portal(which is done in java) with SAP.
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Accessing DB2 data through DBLINK in Java program recieves ORA-02063 error

Hello,
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public static void main(String[] args) {
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Chris,
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Regards

Want to access RESTful Services through Java Program

We are trying to access RESTful Services exposed by Oracle database cloud through our Java code, with authentication enabled for a particular user.
Till now, we have completed below steps:
1) We have a working account with Oracle database cloud (Username – xxx.xxx)
2) We log in using the credentials for above account, and navigate to Oracle Apex ? SQL Workshop ? RESTful Services
3) We create a new “RESTful Service Module” by filling out the details as below:
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Message was edited by: NeerajGirolkar
- When we are logging in to Oracle cloud on browser and execute the Oracle cloud RESTful service in another tab of same browser, we are able to get the result. But when executed the same RESTful service from a different browser or java program we get internal server error.
- After investigation, we found that when user logs in to oracle database cloud, a cookie is set in browser with name s “OAMAuthnCookie_cstest-domo.db.us1.oraclecloudapps.com:443” and value as some random token. This cookie is passed in the subsequent requests to the RESTful Service calls when using same browser and as a result, we are able to get the results
- In the Java program, we copied the same cookie with random token in the HTTP Request header and we got the proper response from REST APIs.
- It seems that this cookie is created by an Oracle Middleware tool/server called as OAM – Oracle Accounts Manager, which sends the authentication token after successful authentication and creates the cookie.
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Can anyone please suggest:
1.     How to provide authentication to Oracle Cloud REST APIs from java program?
2.     How to pass the username and password in Java code to OAM (or how to communicate with OAM using Java) so that we can receive the unique token from OAM. We can use the token in the further requests? 3.     Also in Oracle cloud white papers , it is mentioned that they support OAuth2.0. But we didn’t find any URLs for same. Can anyone please confirm?
Thanks
~ Neeraj Girolkar

Hi Nilesh,
We tried to connect to Oracle Cloud Database using the way you suggested above, but unfortunately it is not working as well.
Can you let us know the authentication process with Oracle Cloud Database? We found in documentation that it uses OAM (Oracle Access Manager) for authentication. Can you tell us a bit about that? That will be extremely helpful.
Thanks,
- Neeraj

Java Program accessing hardware driver

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