hduser@akshay-lenovo-g580：~$hadoop jar/home/hduser/hipidemo.jar helloworld sampleimages.hib sampleimages\u平均警告：$hadoop\u home已弃用。
线程“main”java.lang.noclassdeffounderror中出现异常：org/hipi/imagebundle/mapreduce/hibinputformat位于helloworld.run（helloworld）。java:44)在org.apache.hadoop.util.toolrunner.run（toolrunner。java:65)在org.apache.hadoop.util.toolrunner.run（toolrunner。java:79)在helloworld.main（helloworld。java:67)在sun.reflect.nativemethodaccessorimpl.invoke0（本机方法）位于sun.reflect.nativemethodaccessorimpl.invoke（nativemethodaccessorimpl）。java:57)在sun.reflect.delegatingmethodaccessorimpl.invoke（delegatingmethodaccessorimpl。java:43)在java.lang.reflect.method.invoke（方法。java:606)在org.apache.hadoop.util.runjar.main（runjar。java:160)原因：java.lang.classnotfoundexception:org.hipi.imagebundle.mapreduce.hibinputformat at at java.net.urlclassloader$1.run（urlclassloader）。java:366)在java.net.urlclassloader$1.run（urlclassloader。java:355)位于java.net.urlclassloader.findclass（urlclassloader）的java.security.accesscontroller.doprivileged（本机方法）。java:354)在java.lang.classloader.loadclass（类加载器。java:425)在java.lang.classloader.loadclass（classloader。java:358) ... 9个以上
我的代码：

import hipi.image.FloatImage;

import java.io.IOException;

import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.hipi.image.HipiImageHeader;
import org.hipi.imagebundle.mapreduce.HibInputFormat;

public class HelloWorld extends Configured implements Tool {

public static class HelloWorldMapper extends Mapper<HipiImageHeader,     FloatImage, IntWritable, FloatImage> {
public void map(HipiImageHeader key, FloatImage value, Context context) 
  throws IOException, InterruptedException {
}
}
public static class HelloWorldReducer extends Reducer<IntWritable, FloatImage, IntWritable, Text> {
public void reduce(IntWritable key, Iterable<FloatImage> values, Context context) 
  throws IOException, InterruptedException {
}
}

public int run(String[] args) throws Exception {
  // Check input arguments
  if (args.length != 2) {
   System.out.println("Usage: helloWorld <input HIB> <output directory>");
    System.exit(0);
  }

  // Initialize and configure MapReduce job
  //Job job = Job.getInstance();
  Job job = new Job(getConf(), "Employee Salary");
 // Set input format class which parses the input HIB and spawns map tasks
job.setInputFormatClass(HibInputFormat.class);
// Set the driver, mapper, and reducer classes which express the computation
job.setJarByClass(HelloWorld.class);
job.setMapperClass(HelloWorldMapper.class);
job.setReducerClass(HelloWorldReducer.class);
// Set the types for the key/value pairs passed to/from map and reduce layers
job.setMapOutputKeyClass(IntWritable.class);
job.setMapOutputValueClass(FloatImage.class);
job.setOutputKeyClass(IntWritable.class);
job.setOutputValueClass(Text.class);

// Set the input and output paths on the HDFS
FileInputFormat.setInputPaths(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));

// Execute the MapReduce job and block until it complets
boolean success = job.waitForCompletion(true);

// Return success or failure
return success ? 0 : 1;
 }

 public static void main(String[] args) throws Exception {
  ToolRunner.run(new HelloWorld(), args);
   System.exit(0);
}

}