Question

我有一个大小为2.4MB的文本文件

如何将其转换为java？

我使用此代码但无效：

初始化文件：

File file = new File("E:/Binary.txt");

//   if file doesnt exists, then create it
if (!file.exists()) {
    file.createNewFile();
}
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);

try {
    String sCurrentLine;
    String bits ="";
    br = new BufferedReader(new FileReader("E:/base1.txt"));
    while ((sCurrentLine = br.readLine()) != null) {
        bits = hexToBin(sCurrentLine);
    }

    bw.write(bits);
    bw.close();
    System.out.println("done....");

} catch (IOException e) {
    e.printStackTrace();
} finally {
    try {
        if (br != null)br.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

此转化方法：

static String hexToBin(String s) {
    return new BigInteger(s, 16).toString(2);
}

Answer 1

我不明白你的十六进制文件是什么意思，任何文件都可以作为二进制文件读取，这里有一个关于如何阅读＆amp;写一个二进制文件：

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class BinaryFiles {

  public static void main(String... aArgs) throws IOException{
    BinaryFiles binary = new BinaryFiles();
    byte[] bytes = binary.readBinaryFile(FILE_NAME);
    log("size of file read in:" + bytes.length);
    binary.writeBinaryFile(bytes, OUTPUT_FILE_NAME);
  }

  final static String FILE_NAME = "***srcPath***";
  final static String OUTPUT_FILE_NAME = "***destPath***";

  byte[] readBinaryFile(String aFileName) throws IOException {
    Path path = Paths.get(aFileName);
    return Files.readAllBytes(path);
  }

  void writeBinaryFile(byte[] aBytes, String aFileName) throws IOException {
    Path path = Paths.get(aFileName);
    Files.write(path, aBytes); //creates, overwrites
  }

  private static void log(Object aMsg){
    System.out.println(String.valueOf(aMsg));
  }

}

如果要将十六进制转换为二进制，请使用：

String hexToBinary(String hex) {
int intVal = Integer.parseInt(hex, 16);
String binaryVal = Integer.toBinaryString(intVal);
return binaryVal;
}

您可以使用上面的示例组合将HEX转换为二进制，然后编写它。

如何将大十六进制文件转换为二进制文件？

1 个答案: