Thread: JavaPos Applet

Hi everybody,
i've developed a simple Applet that create a PosPrinter instance.
To use javaPos i need a property file and an xml. I've added these to my src folder of my Ecplipse project and when i run the applet from Eclipse works fine.
But when i try to run the applet frm a web page, through a jnlp file, i get an Exception in the init method "javapos/res/jpos.properties file not found".
In the jnlp file i'm able to ref other external jar, but i don't know how to add external folder.
How can i fix this?

Yes, i get the two files inside the jar. I've also tried to clean java cache to remove previous applet version.

Here's a very short article that contains the key line of code that you'll need to read a file that has been packaged up in your applet jar file: Accessing a resource within a .jar. Internet search term used: "read file in jar"

Hello
i've readed a lot of example. Now this is my code:

public class adgPrinterAppletXml extends Applet implements ActionListener, EventCallbacks{
 
	private static final long serialVersionUID = 1L;
		SimpleEntry temp;
	public void init(){
		Properties p = new Properties();
 
                try {
			p.load(getClass().getClassLoader().getResourceAsStream("jpos/res/jpos.properties"));
		} catch (IOException e2) {
			e2.printStackTrace();
		}
		System.out.println("Getting Service Manager");
 
		WNJposServiceInstanceFactory factory = new WNJposServiceInstanceFactory();
 
		SimpleXmlRegPopulator xmlReg = new SimpleXmlRegPopulator();
		;
        xmlReg.load("wincor.jpos17.THxxx.xml");
        System.out.println("3");
        @SuppressWarnings("unchecked")
        Enumeration<SimpleEntry> e = xmlReg.getEntries();
        while(e.hasMoreElements()){
	            temp= e.nextElement();
        }
        System.out.println(temp.getLogicalName());
        try {
			WNPOSPrinterTH230 printer = (WNPOSPrinterTH230)factory.createInstance("WN_TH230_U1_USB", temp);
 
			printer.open("WN_TH230_U1_USB",this);
 
            printer.claim(0);
 
            printer.setDeviceEnabled(true);
 
            printer.printBarCode(POSPrinterConst.PTR_S_RECEIPT, "7766554433222", 104, 60, 1 ,2 ,-13);
 
            printer.cutPaper(100);
		} catch (JposException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
	}
 
}

It worked fine in eclipse whe i run the class as an applet. The properties file is inside sources.
When export as jar and run from a browser i get :

access denied ("java.util.PropertyPermission" "*" "read,write")
         jpos/res/jpos.properties not found

if i autosign the jar i get the same error and in addition:

Missing Permissions manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Codebase manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Permissions manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Codebase manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Permissions manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Codebase manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Permissions manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Codebase manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Permissions manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Codebase manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar

Originally Posted by tleaf

...
p.load(getClass().getClassLoader().getResourceAsStream("jpos/res/jpos.properties"));
...

It worked fine in eclipse whe i run the class as an applet. The properties file is inside sources.
When export as jar and run from a browser i get :

access denied ("java.util.PropertyPermission" "*" "read,write")
         jpos/res/jpos.properties not found

In order to check if jpos.properties has been packaged up into the right location within the jar file, please run

jar -tf adg.jar

(I'm assuming your JDK's bin directory is already in your system PATH environment variable. If not, run \absolute_path_to_jdk's_bin_directory\jar -tf adg.jar.)

Originally Posted by tleaf

if i autosign the jar i get the same error and in addition:

How did you "autosign" the jar? Also, was it signed using a self-signed certificate, or with a trusted CA-signed certificate?

Originally Posted by tleaf

Missing Permissions manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Codebase manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar
Missing Permissions manifest attribute for: file:/C:/Documents%20and%20Settings/Administrator/Desktop/applet/adg.jar

This applies to signed applet jars only. The following web page may be of help:

• Deploying an Applet (The Java™ Tutorials > Deployment > Java Applets)
• Enhancing Security with Manifest Attributes (The Java™ Tutorials > Deployment > Packaging Programs in JAR Files)
• What Applets Can and Cannot Do (The Java™ Tutorials > Deployment > Java Applets)