java实现文件转移_java迁移400g文件-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_45193057/article/details/119991667

该Java程序用于将QQ聊天记录中的图片文件从'D:qq记录qqImageGroup2'目录及其子目录下移动到'D:file'目录下。程序首先判断源文件夹是否为目录，如果是，则遍历所有文件，对每个文件进行处理；如果不是目录，则直接处理文件。通过BufferedInputStream和BufferedOutputStream实现文件内容的读取和写入，完成文件的移动操作。

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用java将qq下的图片整合到另一个目录下

import java.io.*;

public class readqq {
    public static void main(String[] args) throws IOException {
        File file = new File("D:\\qq记录\\qq\\Image\\Group2");
        myread(file);
        System.out.println("over");
    }

    private static void myread(File file) throws IOException {
        if (file.isDirectory()){
            File[] files = file.listFiles();
            for (File file1 : files) {
                if (file1.isFile()){
                    System.out.println(file1);
                    String absolutePath = file1.getAbsolutePath();
                    String name = file1.getName();
                    BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream(absolutePath));
                    BufferedOutputStream bufferedOutputStream=new BufferedOutputStream(new FileOutputStream("D:\\file\\"+name));
                    byte[] bytes = new byte[1024];
                    int read;
                    while ((read=bufferedInputStream.read(bytes))!=-1){
                        bufferedOutputStream.write(bytes,0,read);
                        bufferedOutputStream.flush();
                    }
                    bufferedInputStream.close();
                    bufferedOutputStream.close();

                }else{
                    myread(file1);
                }
            }

        }else{
            System.out.println(file);
            String absolutePath = file.getAbsolutePath();
            String name = file.getName();
            BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream(absolutePath));
            BufferedOutputStream bufferedOutputStream=new BufferedOutputStream(new FileOutputStream("D:\\file"+name));
            byte[] bytes = new byte[1024];
            int read;
            while ((read=bufferedInputStream.read(bytes))!=-1){
                bufferedOutputStream.write(bytes,0,read);
                bufferedOutputStream.flush();
            }
            bufferedInputStream.close();
            bufferedOutputStream.close();

        }
    }
}