02.Wordcount跑代码ERROR util.Shell: Failed to locate the winutils binary in the hadoop binary path java

错误：ERROR util.Shell: Failed to locate the winutils binary in the hadoop binary path java.io.IOException 出现原因：在windows中没有配置hadoop环境变量 解决办法： 第一步：安装hadoop到windows中 比如安装：D:\dev\source\hadoop\hadoop-2.7.4

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