功能
将wallpaper目录下面的视频转移到自己所需的目录下面
使用
三个输入:
第一个是输入的wallpaper存放壁纸的地址
其中地址就为
E:\steam\Steam\steamapps\workshop\content\431960
如果不知道也可以右键壁纸查看
第二个输入的是下载的时间,
意思就是从哪个时间开始的壁纸,就比如2022-12-4-19-0,就会找12月4号下午七点以后下载的壁纸文章来源:https://www.toymoban.com/news/detail-527844.html
第三个输入的是存放地址
这个就填要存放在哪里的地址。可以是电脑的,也可以把手机连上直接下载文章来源地址https://www.toymoban.com/news/detail-527844.html
所需依赖:
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.47</version>
</dependency>
更新了方法
使用了线程池,线程池的数量等于cpu核处理速度最快
使用了Files.copy方法,使用该方法在复制小文件的过程中速度比BufferedInputStream更快
使用了synchronizedList来统计文件的个数,因为此集合是线程安全的。
package com.company;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.concurrent.*;
public class WallPaper {
private static final ExecutorService executor = Executors.newFixedThreadPool(6);
public static void main(String[] args) throws ParseException, InterruptedException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd-HH-mm");
List<String> list = Collections.synchronizedList(new ArrayList<String>());
Scanner scanner = new Scanner(System.in);
System.out.println("请输入wallpaper下载的地址");
String str = scanner.next();
File sfile = new File(str);
System.out.println("请输入时间(格式为:年-月-日-小时-分钟)");
String time = scanner.next();
Date date = sdf.parse(time);
System.out.println("请输入需要存放的地址");
String str2 = scanner.next();
File tfile = new File(str2);
if (!tfile.exists() && !tfile.isDirectory()) {
tfile = new File(tfile.getParentFile(), "wallpaper下载的视频");
System.out.println(tfile.getAbsolutePath());
tfile.mkdirs();
}
if (!sfile.exists() && !sfile.isDirectory()) {
System.out.println("地址不对哦");
return;
}
if (sfile.isDirectory()) {
File[] fs = sfile.listFiles();
File finalTfile = tfile;
int tmp = 0;
assert fs != null;
/**
* *先统计文件的个数
*/
for (File x : fs) {
Date date1 = new Date(x.lastModified());
if (date1.compareTo(date) > 0) {
boolean flag = false;
String needFilename = x.getAbsolutePath() + "\\project.json";
if (new File(needFilename).exists()) {
flag = isNeedFile(needFilename);
}
if (flag) {
tmp++;
}
}
}
CountDownLatch cdl = new CountDownLatch(tmp);
/**
*多线程进行复制
*/
Date startDate = new Date();
for (File x : fs) {
executor.submit(
() -> {
Date date1 = new Date(x.lastModified());
if (date1.compareTo(date) > 0) {
boolean flag = false;
String needFilename = x.getAbsolutePath() + "\\project.json";
if (new File(needFilename).exists()) {
flag = isNeedFile(needFilename);
}
if (flag) {
String filename = x.getAbsolutePath() + "\\" + Filename(needFilename);
File tf = new File(finalTfile.getAbsoluteFile() + "\\" + Filename(needFilename));
try {
copyfile(new File(filename), tf);
synchronized (list){
list.add("成功");
}
System.out.println("将 " + Filename(needFilename) + " 复制到 " + finalTfile.getAbsolutePath() + " 中");
} catch (IOException e) {
e.printStackTrace();
System.out.println(Filename(needFilename) + "复制失败");
}
cdl.countDown();
}
}
});
}
cdl.await();
executor.shutdown();
System.out.println("复制完成,共" + list.size() + "个文件");
Date endDate = new Date();
System.out.println(endDate.getTime()-startDate.getTime());
}
else {
System.out.println("地址不对哦");
}
}
//复制文件
public synchronized static void copyfile(File fs, File ft) throws IOException {
if (ft.exists()) {
System.out.println(ft.getName() + "重复...." + "正在删除");
ft.delete();
}
Files.copy(fs.toPath(),ft.toPath(),StandardCopyOption.REPLACE_EXISTING);
// FileInputStream fi = new FileInputStream(fs);
// FileOutputStream fo = new FileOutputStream(ft);
// BufferedInputStream bfi = null;
// BufferedOutputStream bfo = null;
// bfi = new BufferedInputStream(fi);
// bfo = new BufferedOutputStream(fo);
// int count = -1;
// while ((count = bfi.read()) != -1) {
// bfo.write(count);
// }
// bfo.flush();
// bfo.close();
// bfi.close();
}
//查找是否是所需的视频文件
public static boolean isNeedFile(String filename) {
String s = readJsonFile(filename);
JSONObject jobj = JSON.parseObject(s);
if (jobj.get("contentrating") != null && !jobj.get("contentrating").equals(""))
return jobj.get("contentrating").toString().equals("Mature") && (jobj.get("type").toString().equals("Video") || jobj.get("type").toString().equals("video"));
return false;
}
public static String Filename(String filename) {
String s = readJsonFile(filename);
JSONObject jobj = JSON.parseObject(s);
return jobj.get("file").toString();
}
//读取json文件
public static String readJsonFile(String fileName) {
String jsonStr = "";
try {
File jsonFile = new File(fileName);
FileReader fileReader = new FileReader(jsonFile);
Reader reader = new InputStreamReader(new FileInputStream(jsonFile), "utf-8");
int ch = 0;
StringBuffer sb = new StringBuffer();
while ((ch = reader.read()) != -1) {
sb.append((char) ch);
}
fileReader.close();
reader.close();
jsonStr = sb.toString();
return jsonStr;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
}
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