sqoop操作时报错Exception in thread "main" java.lang.NoClassDefFoundError: org/json/JSONObject

Exception in thread "main" java.lang.NoClassDefFoundError: org/json/JSONObject
	at org.apache.sqoop.util.SqoopJsonUtil.getJsonStringforMap(SqoopJsonUtil.java:43)
	at org.apache.sqoop.SqoopOptions.writeProperties(SqoopOptions.java:785)
	at org.apache.sqoop.metastore.hsqldb.HsqldbJobStorage.createInternal(HsqldbJobStorage.java:399)
	at org.apache.sqoop.metastore.hsqldb.HsqldbJobStorage.create(HsqldbJobStorage.java:379)
	at org.apache.sqoop.tool.JobTool.createJob(JobTool.java:181)
	at org.apache.sqoop.tool.JobTool.run(JobTool.java:294)
	at org.apache.sqoop.Sqoop.run(Sqoop.java:147)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
	at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:183)
	at org.apache.sqoop.Sqoop.runTool(Sqoop.java:234)
	at org.apache.sqoop.Sqoop.runTool(Sqoop.java:243)
	at org.apache.sqoop.Sqoop.main(Sqoop.java:252)
Caused by: java.lang.ClassNotFoundException: org.json.JSONObject
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 12 more

原因分析：
在sqoop/lib下缺少java.json.jar的依赖包
解决：
[http://www.java2s.com/Code/Jar/j/Downloadjavajsonjar.html] 下载依赖包
放入sqoop/lib下