如何解决java.security.AccessControlException

Question

I'm trying to create an rmi application : the client transfer file to the serve. But , when running the code i get security manager exception. Here is the client side :

  import java.rmi.Naming;
  import java.rmi.RMISecurityManager;
  import java.util.Scanner;
  public class StartFileClient {
  public static void main(String[] args) {
    if (System.getSecurityManager() == null)
        System.setSecurityManager(new RMISecurityManager());
    try{
        FileClient c=new FileClient("imed");            
        FileServerInt server=(FileServerInt)Naming.lookup("rmi://localhost/abc");
        server.login(c);
        System.out.println("Listening.....");           
        Scanner s=new Scanner(System.in);           
        while(true){
            String line=s.nextLine();
        }
    }catch(Exception e){
        e.printStackTrace();
    }
}   

}

Here is the server side :

 import java.rmi.Naming;
public class StartFileServer {
public static void main(String[] args) {
    // TODO Auto-generated method stub
    try{

        java.rmi.registry.LocateRegistry.createRegistry(1099);

        FileServer fs=new FileServer();
        fs.setFile("itcrowd.avi");          
        Naming.rebind("rmi://localhost/abc", fs);
        System.out.println("File Server is Ready");

    }catch(Exception e){
        e.printStackTrace();
    }
}   

}

Also, i create a file security.policy

  grant {
        permission java.security.AllPermission;

};

Thanks for helping.

Answer 1

Clearly your policy file isn't being found. You need to specify its location via the java.security.policy system property.

BUT Unless you're using the codebase feature, remove the security manager.