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我有 XML-RPC 服务器，我相信它工作正常。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。当我尝试使用我的客户端连接时，我收到此错误：

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

公共类主要{

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：

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

致以最诚挚的谢意

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