Java XmlRpcException:无法读取服务器'；s响应：连接被拒绝：连接

我有XML-RPC服务器，我相信它工作得很好。我可以使用telnet连接到服务器，也可以使用web浏览器，地址是（dracek:8080）dracek=计算机名称。 当我尝试使用客户端进行连接时，出现以下错误：

org.apache.xmlrpc.XmlRpcException:无法读取服务器的响应：连接 拒绝：连接

服务器应该记录“客户端已连接”，但没有任何反应

服务器代码：

公共班机{

private static int port = 8080;
private static InetAddress ipAddress = null;

public static void main(String[] args) {

    try
    {
        ipAddress = InetAddress.getLocalHost(); 
    }
    catch (UnknownHostException e)
    {
        System.out.println("UnknownHostException");
        System.exit(0);
    }      

    System.out.println("Starting server.");

    try {        

        WebServer webServer = new WebServer(port, ipAddress); 

        // get XML-RPC Server
        XmlRpcServer xmlRpcServer = webServer.getXmlRpcServer();
        PropertyHandlerMapping phm = new PropertyHandlerMapping();
        phm.addHandler("DBClass", DBClass.class);

        // mapping
        xmlRpcServer.setHandlerMapping(phm);

        // configuration
        XmlRpcServerConfigImpl serverConfig = (XmlRpcServerConfigImpl) xmlRpcServer
                .getConfig();
        serverConfig.setEnabledForExceptions(true); 
        serverConfig.setEnabledForExtensions(true);
        serverConfig.setContentLengthOptional(false); 

        // start server
        webServer.start();            

    }
    catch (Exception e)
    {
        System.out.println(e.getMessage());
    }
    System.out.println("Server succesfully started. IP:" + ipAddress + " Port:" + port + ".");

}

数据库类：

    public void testConnection(){
    System.out.println("Client connected.");
}

客户端代码：

private static InetAddress ipAddress = null;
private static int port = 8080;
private static String confFile = "";
private static XmlRpcClientConfigImpl config;

public static void main(String[] args) {
    System.out.println("Starting client.");

    if (args.length == 3) {
        try {
            ipAddress = InetAddress.getByName(args[0]);
            port = Integer.parseInt(args[1]);
            confFile = args[2];
        }
        catch (NumberFormatException e) {
    System.out.println("Port number is not valid!");
    System.exit(0);
        }
        catch (UnknownHostException e)
        {
            System.out.println("UnknownHostException");
            System.exit(0);
        }             
}
    else
    {
        System.out.println("Some parameter is missing!");
        System.out.println("Valid parameters are: IP(0) Port(1) Config_file_name(2).");
    }


Client.config = new XmlRpcClientConfigImpl();
try
    {
        Client.config.setServerURL(new URL("http://" + ipAddress + ":" + port)); // nastaveni   
    }
    catch(MalformedURLException me)
    {
        System.out.println("Server URL is not valid!");
        System.exit(0);        
    }

Client.config.setEnabledForExtensions(true);
Client.config.setEnabledForExceptions(true);

Client.config.setConnectionTimeout(60 * 1000); 
Client.config.setReplyTimeout(60 * 1000); 

XmlRpcClient client = new XmlRpcClient();

client.setTransportFactory(new XmlRpcSunHttpTransportFactory(client));

client.setConfig(Client.config);

System.out.println("Connnected to " + ipAddress + " : " + port + ".");

    Tools tools = new Tools(client);

    tools.testConnection();
    }

工具类别：

public class Tools {

private XmlRpcClient client;

public Tools(XmlRpcClient client)
{
    this.client = client;
}
public void testConnection() {

Object[] params = new Object[] {};

    try
    {   
        this.client.execute("DBClass.testConnection", params);
    }
    catch (XmlRpcException e)
    {
        System.out.println("Error occured when testing connection!"); 
        System.out.println(e.toString());
    }            
}     

我使用以下命令运行客户端：

java-Djava.security.policy=..\Client\src\Client\Client.policy-jar..\Client\dist\Client.jar dracek 8080..\data\commands.txt

谢谢你，致以最良好的问候