FileSearch.java

Posted 2020-09-06 xiaoCong2015

package test1;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by 本地账户登录-xiaoCong on 2017/1/2.
 */
public class FileSearch {
// out/production/Java/test1/Test1.class
    // E:\\IntelliJ\\Java\\out\\production\\Java\\test1
//    public static String fileName = "";
//    public static String srcPath = "";
//    public static String desPath = "";

    //public static String fileName = "Test1.class";
    public static String fileName = "HasStatic.class";
//    public static String fileName = "Test1.class";
    public static String srcPath = "E:\\IntelliJ\\Java\\out\\production\\Java";
    //todo 注意，使用中最后的斜杠一定要，不然会跟文件名拼在一起
    public static String desPath = "E:\\IntelliJ\\Java\\out\\production\\Java\\sort\\";

    public static void main(String[] args) {
        FileSearch fileSearch  = new FileSearch();

        //List<File> fileList = fs.searchFile("a.jpg", "E:\\huaxin\\fivechess");
        //List<File> fileList = fileSearch.searchFile(fileName, srcPath);
        List<File> fileList = fileSearch.searchFile(fileName, srcPath );

        if (0!=fileList.size()) {
            for (File file : fileList ) {
                fileSearch.cutFileTo(file,desPath);
            }
        }
    }

    public void cutFileTo(File file, String desPath) {
        //this.cutFile(file, new File(desPath + fileName));
        //this.cutFile(file, new File(desPath + fileName+new Date()));
        //SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:ss:ss");

//        UUID uuid = UUID.randomUUID();
//        this.cutFile(file, new File(desPath+uuid.toString()+fileName));

        String strFile = file.toString();
        this.cutFile(file, new File(desPath + strFile.substring(strFile.lastIndexOf("\\"))));
    }

    //todo 剪切功能没实现
    public void cutFile(File srcFile, File file2) {
        InputStream inputStream = null;
        FileOutputStream fileOutputStream = null;
        byte[] bytes = new byte[1024];
        int temp = 0;
        try {
            inputStream = new FileInputStream(srcFile);
            fileOutputStream = new FileOutputStream(file2);
            while ((temp = inputStream.read(bytes)) != -1) {
                fileOutputStream.write(bytes, 0, temp);
                fileOutputStream.flush();
            }
            //todo 这里应该删除原来的，srcFile  没删除成功
            srcFile.delete();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (fileOutputStream != null) {
                try {
                    fileOutputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public List<File> searchFile(String strFileName, String path) {
        return this.searchFile(fileName, srcPath , new ArrayList<File>() );
    }


    //"Chess.java"
    public List<File> searchFile(String strFileName, String path, List<File> fileList ) {
//        List<File> fileList = new ArrayList<>();

// 关联文件对象
        File file = new File(path);
// 判断当前file是文件还是文件夹,是文件就输出文件绝对地址，是路径就继续查找
        //todo 判断是否是文件夹
        if (file.isFile()) {//是文件，或者用  !file.isDirectory()
            //if (file.getName().equals(strFileName)) {  //判断查出的文件名和初始的文件名是否相同，相同就打印，不同就往下一级继续查询
            //模糊匹配
            if (file.getName().contains(strFileName)) {
//将符合条件的地址打印在JTextArea中
                //todo
                fileList.add(file);
//                this.cutFilesTo(file,desPath);
//                System.out.println(file.getAbsolutePath());
            }
        } else {//是文件夹，递归
            File[] files = file.listFiles();
            if (files != null) {
                for (int i = 0; i < files.length; i++) {
// 将其中的文件夹遍历出来，并调用searchFile方法的调用
                    File childFile = files[i];
                      searchFile( strFileName,childFile.getAbsolutePath(),fileList);//这里用递归的思想，在方法中再调这个方法，完成在下一级目录的查询，一直到找出所有符合条件的文件
                }
            }
        }

        return fileList;
    }


}

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