userlog.java

一本jsp自学教材

package user;
import java.util.Date;
import java.io.*;

public class UserLog {
  Date date=new Date();
  String dt=date.toLocaleString();
  public UserLog(){
      }
  public void Ulog(String str,String filepath)throws Exception
  {
   File ff =new File(filepath);
   RandomAccessFile raf=new RandomAccessFile(ff,"rw");
   raf.seek(raf.length());    //将指针移到文件末
   raf.writeBytes(dt+":");
   raf.writeBytes(str+"\r\n");
   raf.close();
  }
}