通过ByteArrayOutputStream将inputStream转变为outputStream(5)

 
                    }catch(ClassCastException e1){   
 
//                      logger.info("Stream object not a ByteArrayOutputStream or a FileInputStream:",e1);   
 
                        return null;   
 
                    }catch(Exception e1){   
 
//                      logger.info("baos is null:",e1);   
 
                        return null;   
 
                    }   
 
                }   
 
                       
 
            }   
 
        }   
 
         
 
     //产生一个文件输入流   
 
     public static InputStream ops() throws FileNotFoundException {   
 
         File file = new File("d://lin.txt");      
 
         FileInputStream fileInputStream = new FileInputStream(file);   
 
         return fileInputStream;   
 
     }   
 
        
 
     public static void main(String[] args) throws IOException {   
 
           
 
         try {   
 
//          OutputStream outputStream = ops();