无法读取新锁定的文件 [英] Unable to read from newly locked file

问题描述

所以我试图锁定文件以读取它，但是我得到了IOException，知道为什么吗?

So I try to locked the file to read it, but I got IOException, any idea why?

public static void main(String[] args){
    File file = new File("C:\\dev\\harry\\data.txt");

    FileReader fileReader = null;
    BufferedReader bufferedReader = null;
    FileChannel channel = null;
    FileLock lock = null;
    try{
        channel  = new RandomAccessFile(file, "rw").getChannel();
        lock = channel.lock();
        fileReader = new FileReader(file);
        bufferedReader = new BufferedReader(fileReader);
        String data;
        while((data = bufferedReader.readLine()) != null){
            System.out.println(data);
        }
    }catch(IOException e){
        e.printStackTrace();
    }finally{
        try {
            lock.release();
            channel.close();
            if(bufferedReader != null) bufferedReader.close();
            if(fileReader != null) fileReader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

我收到此错误IOException: The process cannot access the file because another process has locked a portion of the file

推荐答案

还可以将其添加为答案而不是评论.

Might as well add this as an answer instead of a comment.

如果使用FileLock API，则需要使用相应的NIO文件api.

If you use the FileLock API you need to use the corresponding NIO file apis.

这篇关于无法读取新锁定的文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！