java 删除D盘过期图片定期删除

雨点打透心脏的1/2处 2021-09-19 15:42 299阅读 0赞

package com.zpc.timor.test;
    
    import java.io.File;
    import java.util.Calendar;
    
    /**
     * @Author timor
     * @Date 2019/5/28
     */
    public class DeletePic {
        public static void main(String[] args) {
    
            /*if(null!=args){
                if(args.length!=3){
                    System.out.println("传入的日期格式 依次传入 年 月  日 用空格分开");
                    return;
                }else{
                    Y=Integer.parseInt(args[0]);
                    M=Integer.parseInt(args[1]);
                    D=Integer.parseInt(args[2]);
                }
    
            }*/
            traverseFolder2("F:\\pic");
    
        }
    
        private static int Y=2019;
        private static int M=6;
        private static int D=1;
    
    
        public static void traverseFolder2(String path) {
    
            File file = new File(path);
            if (file.exists()) {
                File[] files = file.listFiles();
                if (files.length == 0) {
                    System.out.println("文件夹是空的!");
                    System.out.println(file.getPath());
                    if(file.getPath()!=path){//防止删根目录
                        file.delete();
                    }
                    return;
                } else {
                    for (File file2 : files) {
                        if (file2.isDirectory()) {
                            // System.out.println("文件�?:" + file2.getAbsolutePath());
                            traverseFolder2(file2.getAbsolutePath());
                        } else {
                            System.out.println("文件:" + file2.getAbsolutePath());
                            Calendar cal = Calendar.getInstance();
                            long time = file2.lastModified();
                            cal.setTimeInMillis(time);
                            System.out.println("修改时间:" +
                                    cal.getTime().toLocaleString());
                            Calendar cal2 = Calendar.getInstance();
                            cal2.set(Y, M, D, 00, 00, 00);
                            if (cal.getTimeInMillis() < cal2.getTimeInMillis()) {
                                String op = file2.getParent();
                                String np = op.replaceAll("pic", "pic_back");
                                File nf = new File(np);
                                if (!nf.exists()) {
                                    nf.mkdirs();
                                }
                                System.out.println("备份："+file2.getName());
                                file2.renameTo(new File(nf.getPath() + "\\" + file2.getName()));
                            }
    
                        }
                    }
                }
            } else {
                System.out.println("文件不存在!");
            }
        }
    }