我想做的首先是一些文件的一种复制程序：
你输入一个字典，它应该被粘贴到某个地方。
一切正常，除了不是 .txt 的每个文件类型！所有word数据都打不开……png、jpg、gif数据都打不开文件传输后！？
所以这就是我得到的：
@SuppressWarnings("deprecation")
static void crypt(String input, String output){
File folder = new File(input);
File[] listOfFiles = folder.listFiles();
for (File file : listOfFiles){
FileInputStream fis = null;
BufferedInputStream bis = null;
DataInputStream dis = null;
System.out.println("['"+file.getName()+"' is copied]");
try {
fis = new FileInputStream(file);
// Here BufferedInputStream is added for fast reading.
bis = new BufferedInputStream(fis);
dis = new DataInputStream(bis);
FileWriter fstream;
if(output.endsWith(file.separator) || output.endsWith("/")){
fstream = new FileWriter(output+file.getName());
}else{
fstream = new FileWriter(output+file.separator+file.getName());
}
BufferedWriter out = new BufferedWriter(fstream);
//Close the output stream
// dis.available() returns 0 if the file does not have more lines.
while (dis.available() != 0) {
// this statement reads the line from the file and print it to
// the console.
out.write(dis.readLine());
out.newLine();
}
out.close();
// dispose all the resources after using them.
fis.close();
bis.close();
dis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}