package com.ruoyi.fuzhou.utils.hj1239;

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

/**
 * 文件读取工具类
 */
public class FileReadUtils {
    public static void main(String[] args) throws Exception {
        byte[] bytes = readFromByteFile("D:\\福州项目\\ftp\\VEXJJYEY937103845_25032121");
        String content = bytesToHex(bytes);
        content = content.replace("aaaabbbbccccaaaa", "aaaabbbb,ccccaaaa");
        String[] src = content.split(",");
        for (int i = 0; i < src.length; i++) {
            String items = src[i];
        }
        System.out.println(src);
    }

    public static byte[] readFromByteFile(String pathname) throws IOException {
        File filename = new File(pathname);
        BufferedInputStream in = new BufferedInputStream(new FileInputStream(filename));
        ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
        byte[] temp = new byte[1024];
        int size = 0;
        while ((size = in.read(temp)) != -1) {
            out.write(temp, 0, size);
        }
        in.close();
        byte[] content = out.toByteArray();
        return content;
    }

    /**
     * 字节数组转16进制
     *
     * @param bytes 需要转换的byte数组
     * @return 转换后的Hex字符串
     */
    public static String bytesToHex(byte[] bytes) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < bytes.length; i++) {
            String hex = Integer.toHexString(bytes[i] & 0xFF);
            if (hex.length() < 2) {
                sb.append(0);
            }
            sb.append(hex);
        }
        return sb.toString();
    }

    public ArrayList<String> readFromTextFile(String pathname) throws IOException {
        ArrayList<String> strArray = new ArrayList<String>();
        File filename = new File(pathname);
        InputStreamReader reader = new InputStreamReader(new FileInputStream(filename));
        BufferedReader br = new BufferedReader(reader);
        String line = "";
        line = br.readLine();
        while (line != null) {
            strArray.add(line);
            line = br.readLine();
        }
        return strArray;
    }

}