rmi java.security.policy访问被拒绝 [英] rmi java.security.policy access denied
问题描述
我是Java中RMI的新手,我想使用RMI创建客户端服务器应用程序,
I am new to RMI topic in java and i wana to create client server applicaiton using RMI,
我遵循了在此链接中找到的本教程:使用Eclipse的RMI教程
i followed this tutorial found in this link : RMI Tutorial using eclipse
但是我正在使用 netbeans ,这是服务器代码:
but i am using netbeans ,and here is server code:
import java.rmi.*;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.*;
public class AdditionServer {
public static void main (String[] argv) {
try {
if (System.getSecurityManager() == null)
{
System.setSecurityManager(new SecurityManager());
}
String policy="file:/home/user/NetBeansProjects/RMIServerSide/security.policy";
System.setProperty("java.security.policy",policy);
Addition Hello = new Addition();
System.out.println("test\n");
Registry reg=LocateRegistry.createRegistry(1099);
reg.rebind("rmi://localhost/ABC", Hello);
System.out.println("Addition Server is ready.");
}catch (Exception e) {
System.out.println("Addition Server failed: " + e);
}
}
}
,这里是security.policy:
and here security.policy :
grant codeBase "/home/user/NetBeansProjects/RMIServerSide/build/classes/" {
permission java.security.AllPermission;
};
然后我运行rmiregistry&在终端. 然后我运行服务器,这里的输出是什么:
then i run the rmiregistry & in the terminal. then i run the server and here what is the output exactly :
Addition Server failed: java.security.AccessControlException: access denied ("java.util.PropertyPermission" "java.security.policy" "write")
有没有我想念的东西,例如用于vm的配置或??? .....
Is there something i miss it, like a config for vm or something ???.....
推荐答案
我遇到了同样的问题.我已按照以下步骤对其进行了修复:
I had the same problem. I have fixed it following these steps:
- 我已经创建了一个策略文件,我将其命名为
security.policy
具有以下内容
grant {
// Allow everything for now
permission java.security.AllPermission;
};
2-在将远程对象绑定到rmiregistry
之前,添加以下代码行.
2- Add the following line of code just before binding the remote object to the rmiregistry
.
System.setProperty("java.security.policy","file:./security.policy");
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