Hadoop第一个demo运行错误

Exception in thread "main" java.io.IOException: Cannot initialize Cluster. Please check your configuration for mapreduce.framework.name and the correspond server addresses.
at org.apache.hadoop.mapreduce.Cluster.initialize(Cluster.java:120)
at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:82)
at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:75)
at org.apache.hadoop.mapreduce.Job$9.run(Job.java:1255)
at org.apache.hadoop.mapreduce.Job$9.run(Job.java:1251)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1556)
at org.apache.hadoop.mapreduce.Job.connect(Job.java:1250)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1279)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1303)
at com.lk.hadoopDemo.WordCountDemo.main(WordCountDemo.java:48)

尝试了网上的解决方法：

引入下面的jar包，但是还是不行。

<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-mapreduce-client-common</artifactId>
<version>2.4.1</version>
</dependency>

解决方式：需要引入两个jar包

<dependency>

    <groupId>org.apache.hadoop</groupId>

    <artifactId>hadoop-mapreduce-client-common</artifactId>

    <version>2.4.1</version>

</dependency>

<dependency>

    <groupId>org.apache.hadoop</groupId>

    <artifactId>hadoop-mapreduce-client-jobclient</artifactId>

    <version>2.4.1</version>

</dependency>

解决网址：https://www.iteblog.com/archives/840