求救:怎样获得SysemRoot的值?

sakulagi

这样说吧：

1. 
   
2. Process p = Runtime.getRuntime.exec("set SystemRoot");
   
3. LineNumberReader lnr = new LineNumberReader(new InputStreamReader(p.getInputStream()));
   
4. String s = lnr.readLine();
   

复制代码

jinijxta

JDK1.5 Release Version
String systemRoot=System.getenv("SystemRoot";
edit java.policy
add
grant {
  permission java.lang.RuntimePermission "getenv.SystemRoot";
}