mysecmanager.java

来自「java安全性编程实例电子版书附源码,是网络安全编程者不可多得的好书」· Java 代码 · 共 12 行

import java.io.*;
import java.security.*;
public class MySecManager extends SecurityManager {
  public void checkRead(String file) {
              int p1=file.lastIndexOf(".");
              int p2=file.length();
              String suffix=file.substring(p1,p2);
       checkPermission(new SuffixPermission(suffix));
       checkPermission(new FilePermission(file,"read"));
  }
}