实践MappedByteBuffer Posted on 2017-09-12 | In Java | Visitors 基于RandomAccessFile的Channel可以创建 123Exception in thread "main" java.nio.channels.NonWritableChannelException at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:880) at wang.angi.chapter4.UseMappedFile.main(UseMappedFile.java:26)