e171. writing and appending a bytebuffer to a file.txt

来自「这里面包含了一百多个JAVA源文件」· 文本 代码 · 共 26 行

If you have one or more ByteBuffers to dump to a file, use a FileChannel. 
    // Write bbuf to filename
    ByteBuffer bbuf = getMyData();
    File file = new File("filename");
    
    // Set to true if the bytes should be appended to the file;
    // set to false if the bytes should replace current bytes
    // (if the file exists)
    boolean append = false;
    
    try {
        // Create a writable file channel
        FileChannel wChannel = new FileOutputStream(file, append).getChannel();
    
        // Write the ByteBuffer contents; the bytes between the ByteBuffer's
        // position and the limit is written to the file
        wChannel.write(bbuf);
    
        // Close the file
        wChannel.close();
    } catch (IOException e) {
    }

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