出现了java.io.FileNotFoundException: matrix2 的错误

 修改mapper2

@Override

protected void setup(Context context) throws IOException, InterruptedException {

super.setup(context);

//通过输入流将全局缓存变量中的 右侧矩阵 读入List<String>中

Configuration conf = context.getConfiguration();

FileSystem fs = FileSystem.get(conf);

FSDataInputStream in = fs.open(new Path("/matrix/step1_output/part-r-00000"));

        //FileReader fr = new FileReader(itermOccurrenceMatrix);

BufferedReader br = new BufferedReader(new InputStreamReader(in));

//每一行的格式是： 行 tab 列_值,列_值,列_值,列_值

String line = null;

while((line = br.readLine())!=null) {

cacheList.add(line);

}

in.close();

br.close();

}