问题
I am trying to compile WordCount.java file into jar inside of /Desktop/Hadoop/playground/src.
Here's the command I am using.
javac -classpath hadoop-1.2.1-core.jar -d playground/classes playground/src/WordCount.java
The compiler seem to be getting invoked, however I am getting tons of errors like this
error: package org.apache.hadoop.conf does not exist import org.apache.hadoop.conf.Configuration
How do I go about fixing this?
May be there is an answer to this issue already. However I could not fix it.
回答1:
You need to set the paths of hadoop-1.2.1-core.jar and all the other dependent jars correctly --
Try this exactly while you are in the Desktop/hadoop directory (valid in your case only solely based upon the inputs you provided in the comments)
javac -classpath *:lib/* -d playground/classes playground/src/WordCount.java
来源：https://stackoverflow.com/questions/18815064/hadoop-wordcount-java-dependency-issues