HADOOP_HOME or hadoop.home.dir are not set.

ava.io.IOException: HADOOP_HOME or hadoop.home.dir are not set.

at org.apache.hadoop.util.Shell.checkHadoopHome(Shell.java:302)
at org.apache.hadoop.util.Shell.<clinit>(Shell.java:327)
at org.apache.hadoop.util.GenericOptionsParser.preProcessForWindows(GenericOptionsParser.java:438)
at org.apache.hadoop.util.GenericOptionsParser.parseGeneralOptions(GenericOptionsParser.java:484)
at org.apache.hadoop.util.GenericOptionsParser.<init>(GenericOptionsParser.java:170)
at org.apache.hadoop.util.GenericOptionsParser.<init>(GenericOptionsParser.java:153)
at WordCount.main(WordCount.java:52)
ERROR - Failed to locate the winutils binary in the hadoop binary path
 java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries

解決辦法：在main方法內部第一行添加如下代碼 在APPLICATION.java

System.setProperty("hadoop.home.dir", "D:\\Develop\\hadoop-2.6.0");