将图片写入本地-java

最新推荐文章于 2024-08-31 18:58:54 发布

原创最新推荐文章于 2024-08-31 18:58:54 发布 · 1.4k 阅读

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public static void writeFileFromByteBuffer(String filename,ByteBuffer contentStream) throws Exception
    {
        try
        {
            File fr=new File(filename);
            if ( !fr.exists() ) fr.createNewFile();

        InputStream bis = new ByteBufferBackedInputStream(contentStream);
        OutputStream out = new FileOutputStream(fr);

        int count = 0;

        byte[] buf = new byte[8 * 1024];

        while( (count=bis.read(buf)) != -1 ) {
            out.write(buf, 0, count);
        }
        out.close();
    }
    catch(Exception e)
    {
        throw e;
    }
}