Shulou(Shulou.com)06/03 Report--

Import java.io.ByteArrayInputStream

Import java.io.ByteArrayOutputStream

Import java.io.DataInputStream

Import java.io.DataOutputStream

Import java.io.IOException

Import org.apache.hadoop.io.IntWritable

Import org.apache.hadoop.io.MapWritable

Import org.apache.hadoop.io.Text

Import org.junit.Test

Public class TestMapWritable {

@ Test

Public void test1 () throws IOException {

MapWritable map = new MapWritable ()

Map.put (new IntWritable, new Text ("tom"))

ByteArrayOutputStream baos = new ByteArrayOutputStream ()

DataOutputStream dataOut = new DataOutputStream (baos)

Map.write (dataOut)

DataOut.close ()

MapWritable map2 = new MapWritable ()

Map2.readFields (new DataInputStream (new ByteArrayInputStream (baos.toByteArray ()

}

}

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