Windows 中的 java.io.IOException : The process cannot access the file because another process has locked a portion - when using IOUtils. copyLarge()

Question

问题源于此 try block 中的特定代码行:

try {
            fInputStream = new FileInputStream(path);
#thisLine   byteCount += IOUtils.copyLarge(fInputStream, fOutputStream);
            fileCount++;
    }

堆栈跟踪看起来像这样:

java.io.IOException: The process cannot access the file because another 
process has locked a portion 
 of the file 
        at java.io.FileInputStream.readBytes(Native Method) 
        at java.io.FileInputStream.read(FileInputStream.java:233) 
        at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1719) 
        at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1696) 

这似乎是 Windows 特有的问题。是否有一些我可能遗漏的特定于 Windows 的文件 I/O 最佳实践？

Answer 1

我通过传递之前创建的 fileChannel 对象解决了这个问题。

FileChannel fileChannel = FileChannel.open(path, 
                   StandardOpenOption.READ,StandardOpenOption.WRITE);

然后我像这样创建了 InputStream 对象:

Channels.newInputStream(fileChannel);

成功了，没有再发生异常。