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| 继承BasicPermission |
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import java.io.Serializable;
import java.security.BasicPermission;
import java.security.Permission;
class IDPermission extends BasicPermission implements Serializable {
String id = null;
public IDPermission(String id) {
super(id);
this.id = id;
}
public boolean implies(Permission permission) {
IDPermission bp = (IDPermission) permission;
return id.equals(bp.id);
}
public String getActions() {
return "";
}
public int hashCode() {
return id.hashCode();
}
public boolean equals(Object obj) {
if (!(obj instanceof IDPermission)) {
return false;
}
IDPermission bp = (IDPermission) obj;
return id.equals(bp.id);
}
}
public class Main {
public static void main(String[] argv) throws Exception {
Permission p1 = new IDPermission("1");
Permission p2 = new IDPermission("2");
boolean b = p1.implies(p2);
p2 = new IDPermission("3");
b = p1.implies(p2);
p2 = new IDPermission("4");
b = p1.implies(p2);
p2 = new IDPermission("5");
b = p1.implies(p2);
p2 = new IDPermission("6");
b = p1.implies(p2);
}
}
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