java - RandomAccessFile.write：EBADF（错误的文件描述符）

Question

我java.io.IOException: write failed: EBADF (Bad file descriptor)在尝试编写RandomAccessFile.

    RandomAccessFile raf;
    try {
        raf = new RandomAccessFile("foo", "r");
        byte bytes[] = "test".getBytes(StandardCharsets.US_ASCII);
        raf.write(bytes);
        raf.close();
    } catch (FileNotFoundException e){
    } catch (IOException e){
    }

为什么我会得到这个异常？

标签： java

Answer 1

创建RandomAccessFile.