9. Java $B$G$N(B XML-RPC $B$N;H$$J}(B

Hannes Walln$Bvf(Ber $B$O(B Java $BMQ(B XML-RPC $B$N(B$BM%$l$?$B$rDs6!$7$F$$$^$9!#(B

$B%$%s%9%H!<%k$O!"G[I[J*$r%@%&%s%m!<%I$7$F!"(Bunzip $B$7$F!"(B CLASSPATH $B$K(B *.jar $B%U%!%$%k$rDI(B $B2C$7$^$9!#(BUnix $B%7%9%F%`>e$G!"
bash$ unzip xmlrpc-java.zip
bash$ cd xmlrpc-java/lib
bash$ CLASSPATH=`pwd`/openxml-1.2.jar:`pwd`/xmlrpc.jar:$CLASSPATH

9.1. Java $B%/%i%$%"%s%H(B

$BJavaClient.java $B$H$7$F%U%!%$%k$KJ]B8$7$F$/$@(B $B$5$$!#(B

import java.util.Vector;
import java.util.Hashtable;
import helma.xmlrpc.*;

public class JavaClient {

    // The location of our server.
    private final static String server_url =
        "http://xmlrpc-c.sourceforge.net/api/sample.php";

    public static void main (String [] args) {
        try {

            // Create an object to represent our server.
            XmlRpcClient server = new XmlRpcClient(server_url);

            // Build our parameter list.
            Vector params = new Vector();
            params.addElement(new Integer(5));
            params.addElement(new Integer(3));

            // Call the server, and get our result.
            Hashtable result =
                (Hashtable) server.execute("sample.sumAndDifference", params);
            int sum = ((Integer) result.get("sum")).intValue();
            int difference = ((Integer) result.get("difference")).intValue();

            // Print out our result.
            System.out.println("Sum: " + Integer.toString(sum) +
                               ", Difference: " +
                               Integer.toString(difference));

        } catch (XmlRpcException exception) {
            System.err.println("JavaClient: XML-RPC Fault #" +
                               Integer.toString(exception.code) + ": " +
                               exception.toString());
        } catch (Exception exception) {
            System.err.println("JavaClient: " + exception.toString());
        }
    }
}

9.2. $BFHN)7?(B Java $B%5!<%P(B

$BJavaServer.java $B$H$7$F%U%!%$%k$KJ]B8$7$F$/$@(B $B$5$$!#(B

import java.util.Hashtable;
import helma.xmlrpc.*;

public class JavaServer {

    public JavaServer () {
        // Our handler is a regular Java object. It can have a
        // constructor and member variables in the ordinary fashion.
        // Public methods will be exposed to XML-RPC clients.
    }

    public Hashtable sumAndDifference (int x, int y) {
        Hashtable result = new Hashtable();
        result.put("sum", new Integer(x + y));
        result.put("difference", new Integer(x - y));
        return result;
    }

    public static void main (String [] args) {
        try {
            
            // Invoke me as <http://localhost:8080/RPC2>.
            WebServer server = new WebServer(8080);
            server.addHandler("sample", new JavaServer());

        } catch (Exception exception) {
            System.err.println("JavaServer: " + exception.toString());
        }
    }
}