SOS,new java.net.URL(address),出现java.net.SocketException: Network is unreachable

全部代码:    
   try{
       String headFile="http://192.168.1.1/view?oid=aa";
       java.net.URL url = new java.net.URL(headFile);
       InputStream input = url.openStream();
       byte[] bb = new byte[100000];
       input.read(bb);
       input.close();
       String allContent=Normal.parse(new String(bb));
    }catch(Exception e){
       //System.out.println(e.toString());
    }