test.java

pos机交易实现源代码 含金融卡交易8583协议实现 开发环境：linux 典型应用：嵌入系统开发 仅供参考

package genericpackager;

import java.io.*;
import java.util.*;

import org.jpos.iso.*;
import org.jpos.iso.packager.GenericPackager;

public class Test
{
 /**
     * Test harness for GenericPackager
     *
     * <pre>
     * Takes 2 arguments
     * args[0] = xml field description file
     * args[1] = file containing a hex dump of the message to parse
     * </pre>
     */
    public static void main(String[] args) throws Exception
    {
    	if (args.length != 2)
	{
	    System.out.println ("Usage: GenericPackager packager datafile");
	    System.out.println ("       Where packager is an XML packager description");
	    System.out.println ("       And   datafile is a hex dump of an ISOMessage");
	    System.exit(1);
	}
	GenericPackager p = new GenericPackager(args[0]);

	InputStream in = new FileInputStream (args[1]);

	int nbytes = in.available();

	// Read in input file and strip any training white space
	byte[] hexbytes = new byte[nbytes];
	in.read (hexbytes, 0, nbytes);
	while (Character.isWhitespace ((char)hexbytes[nbytes-1]))
	    nbytes--;

	// Convert it to a byte array
	byte b[] = ISOUtil.hex2byte (hexbytes,0,nbytes/2);

	// And upack it into an ISOMsg
	ISOMsg msg = new ISOMsg();
	msg.setPackager (p);
	msg.unpack (b);

	msg.dump (new PrintStream(System.out), "");

	// Now Re-Pack the message
	byte b2[] = msg.pack();

	// The byte arrays should be the same!
	if (!Arrays.equals (b, b2))
	{
	    System.out.println ("Error Re-Packing Message");
	    System.out.println (new String (ISOUtil.hexString(b)));
	    System.out.println (new String (ISOUtil.hexString(b2)));
	}
	else 
	    System.out.println ("Message re-packed ok");
    }

}