最后！还得配置一个地方！
就是这个目录下/home/hadoop/oozie-4.1.0-cdh5.5.2/oozie-server/webapps/oozie/WEB-INF/lib
[hadoop@fa01 lib]$ cd /home/hadoop/oozie-4.1.0-cdh5.5.2/lib
[hadoop@fa01 lib]$ cp mysql-connector-java-5.1.43-bin.jar /home/hadoop/oozie-4.1.0-cdh5.5.2/oozie-server/webapps/oozie/WEB-INF/lib
[hadoop@fa01 lib]$ ls |grep mysql
mysql-connector-java-5.1.43-bin.jar