finally中关闭句柄

在看版本代码的时候，发现有如下的代码，我们在平时的编码中可能也会遇到，很容易造成句柄没有关闭的问题：
    finally
    {
      try
      {
        if (null != in)
        {
          in.close();
        }
        if (null != out)
        {
          out.close();
        }
        if (null != out)
        {
          socket.close();
        }
      }
      catch (Throwable t1)
      {
        throw new TransException(t1);
      }
    }



1.在finally中关闭句柄时，一定要对各个句柄的关闭单独进行try操作，而不能对所有的关闭操作只进行一次try操作
2.不要在finally中随便进行抛异常操作，捕获到异常应该打印日志

        finally
        {
            try
            {
                if (null != in)
                {
                  in.close();
                }
            }
            catch(Throwable t1)
            {
                System.out.println(t1.toString());
            }
           
            try
            {
                if (null != out)
                {
                  out.close();
                }
            }
            catch(Throwable t1)
            {
                System.out.println(t1.toString());
            }
           
            try
            {
                if (null != out)
                {
                  socket.close();
                }
            }
            catch(Throwable t1)
            {
                System.out.println(t1.toString());
            }
        }