映射器未生成预期结果

Question

这是我的输入文件（custs.txt）：

1002|surender|23
1003|Rahja|24

这是我的程序：

Main:

public class ReduceSideJoinMain {
/**
 * @param args
 * @throws IOException 
 * @throws ClassNotFoundException 
 * @throws InterruptedException 
 */
public static void main(String[] args) throws IOException, InterruptedException,    ClassNotFoundException {
    Configuration conf = new Configuration();
    JobConf config = new JobConf();
    config.setQueueName("omega");
    Job job = new Job(config,"word count");
    job.setJarByClass(ReduceSideJoinMain.class);
    Path inputFilePath1 = new Path(args[0]);
    Path outputFilePath2 = new Path(args[1]);
    //MultipleInputs.addInputPath(job, inputFilePath1, TextInputFormat.class,CustMapper.class);
    //MultipleInputs.addInputPath(job, inputFilePath2, TextInputFormat.class,TxnsMapper.class);
    FileInputFormat.addInputPath(job, inputFilePath1);
    FileOutputFormat.setOutputPath(job, outputFilePath2);
    job.setInputFormatClass(TextInputFormat.class);
    job.setOutputFormatClass(TextOutputFormat.class);
    job.setMapperClass(CustMapper.class);
    //job.setReducerClass(ReduceJoinMapper.class);
    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(Text.class);
    job.setOutputKeyClass(Text.class);
    job.setOutputValueClass(Text.class);
    System.exit(job.waitForCompletion(true) ? 0 : 1);
}
}

映射器：

public class CustMapper  extends Mapper<LongWritable,Text,Text,Text>
{
public static IntWritable one = new IntWritable(1);
    protected void map(LongWritable key, Text value, Context context) throws java.io.IOException,java.lang.InterruptedException
    {
    String line =   value.toString();

    String arr[]=   line.split("|");
    context.write(new Text(arr[0]), new Text(arr[1]));
    }
}

我得到以下输出，这是错误的：

        1
        1

我预计输出为：

1002    surender
1003    Rahja

为什么它没有给出预期的输出？拆分方法有问题吗？

Answer 1

使用String arr[] = line.split("\|");