package com.ruoyi.fuzhou.utils.hj1239;
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import java.io.*;
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import java.util.ArrayList;
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/**
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* 文件读取工具类
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*/
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public class FileReadUtils {
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public static void main(String[] args) throws Exception {
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byte[] bytes = readFromByteFile("D:\\福州项目\\ftp\\VEXJJYEY937103845_25032121");
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String content = bytesToHex(bytes);
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content = content.replace("aaaabbbbccccaaaa", "aaaabbbb,ccccaaaa");
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String[] src = content.split(",");
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for (int i = 0; i < src.length; i++) {
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String items = src[i];
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}
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System.out.println(src);
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}
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public static byte[] readFromByteFile(String pathname) throws IOException {
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File filename = new File(pathname);
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BufferedInputStream in = new BufferedInputStream(new FileInputStream(filename));
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ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
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byte[] temp = new byte[1024];
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int size = 0;
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while ((size = in.read(temp)) != -1) {
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out.write(temp, 0, size);
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}
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in.close();
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byte[] content = out.toByteArray();
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return content;
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}
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/**
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* 字节数组转16进制
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*
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* @param bytes 需要转换的byte数组
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* @return 转换后的Hex字符串
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*/
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public static String bytesToHex(byte[] bytes) {
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < bytes.length; i++) {
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String hex = Integer.toHexString(bytes[i] & 0xFF);
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if (hex.length() < 2) {
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sb.append(0);
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}
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sb.append(hex);
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}
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return sb.toString();
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}
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public ArrayList<String> readFromTextFile(String pathname) throws IOException {
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ArrayList<String> strArray = new ArrayList<String>();
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File filename = new File(pathname);
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InputStreamReader reader = new InputStreamReader(new FileInputStream(filename));
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BufferedReader br = new BufferedReader(reader);
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String line = "";
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line = br.readLine();
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while (line != null) {
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strArray.add(line);
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line = br.readLine();
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}
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return strArray;
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}
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}
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