嗨我試圖啓動一個RMI應用程序時得到一個AccessControlException: access denied
我正在寫,我不能解決爲什麼我得到這個異常,如果我打開它的默認端口1099,或在另一個動態端口上,我的策略文件當前授予一切(當應用程序完成時會改變)。Java RMI AccessControlException:訪問被拒絕
我堅持爲地方是哪裏錯了,任何幫助將是非常有用
我的代碼
public class Main {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws RemoteException, AlreadyBoundException, MalformedURLException {
if (System.getSecurityManager() == null)
{
System.setSecurityManager (new RMISecurityManager());
}
CreditCardServer ccs = new CreditCardServer();
int port = 1099;
try {
port = Integer.valueOf(args[0]);
}
catch (Exception e)
{
System.out.println("Invlaid Port");
}
if (((port <= 65535) && (port >= 49152)) || port ==1099)
{
System.out.println("Valid Port");
}
else
{
port = 1099;
System.out.println("Port not in Dynamic Range 49152<-->65535");
}
System.out.println(port);
LocateRegistry.createRegistry(port);
LocateRegistry.getRegistry().bind("CreditCardServer", ccs);
while (true)
{
//hum?
}
}
}
堆棧跟蹤
vega3 [ia32.linux] 23% java -Djava.security.policy=wideopen.policy -jar "BookStore-CreditCardServer.jar 65000"
有效的端口
Exception in thread "main" java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:342)
at java.security.AccessController.checkPermission(AccessController.java:553)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
at java.lang.SecurityManager.checkConnect(SecurityManager.java:1051)
at java.net.Socket.connect(Socket.java:536)
at java.net.Socket.connect(Socket.java:492)
at java.net.Socket.<init>(Socket.java:389)
at java.net.Socket.<init>(Socket.java:203)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:340)
at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
at bookstorecreditcardserver.Main.main(Main.java:56)
我的政策文件
grant {
// Allow everything for now
permission java.security.AllPermission;
};
你可以在你的機器上做一個nmap來確保某個東西沒有使用該端口(例如,你之前運行過這個程序,它並沒有完全死掉)。 – Dave 2010-03-11 18:22:32