hadoop 2.6 源码 解读之写操作之总体流程篇

参考链接：

• https://www.cnblogs.com/shoufeng/p/14461706.html

hdfs写文件示例代码

 Configuration conf = new Configuration();  
        FileSystem fs = FileSystem.get(URI.create(file), conf);  
        Path path = new Path(file);  
        FSDataOutputStream out = fs.create(path);   //创建文件  
  

        out.write(“hello”.getBytes("UTF-8"));  
          
        out.close();  

out.write(“hello”.getBytes(“UTF-8”));
FSDataOutputStream 的 write 方法先是调用父类FilterOutputStream write方法

//FilterOutputStream 
public void write(byte b[]) throws IOException {
        write(b, 0, b.length);
    }
`