ERROR: MaxTemperature is not COMMAND nor fully qualified CLASSNAME
今天按照Hadoop權威指南寫了一個示例專案，然後拿到伺服器執行，然後報標題的錯誤。（前提是已經安裝好了hadoop）
異常顯示為：
顯示找不到這個類。通過網上百度，發現需要寫全類名，根據自己的專案中的全路徑名進行補充：
依舊報錯，但是這次報錯內容換了，證明剛才的修正是對的。
但是出現新問題繼續解決。通過異常看顯示的是hadoop中的檔案系統使用的是hdfs這裡沒有書中說的sample.txt。（這個檔案我是放在執行命令的當前資料夾下）
所以需要的是將檔案放到hadoop預設的檔案系統中。
通過百度查到在hadoop中將檔案放到它的檔案系統hdfs中需要命令hadoop fs -copyFromLocal 檔名 目標資料夾
然後再設定最終的輸出目錄地點為hdfs的未存在目錄即可，最終的命令為：
hadoop com.sunshine.hadoop.excutor.MaxTemperatureExecutor /sample.txt /output/01
（上述命令中的/sample.txt是已經將sample.txt檔案放於hdfs中，/output/01是hdfs中不存在的目錄，hadoop執行完MapReduce操作後會自動建立）
最終執行成功示例
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