使用canal同步数据的时候，在连接mysql数据库连接不上?报错

2017-08-01 09:27:36.766 [main] INFO c.a.o.c.i.spring.support.PropertyPlaceholderConfigurer - Loading properties file from class path resource [canal.properties]
2017-08-01 09:27:36.770 [main] INFO c.a.o.c.i.spring.support.PropertyPlaceholderConfigurer - Loading properties file from class path resource [example/instance.properties]
2017-08-01 09:27:36.850 [main] WARN org.springframework.beans.TypeConverterDelegate - PropertyEditor [com.sun.beans.editors.EnumEditor] found through deprecated global PropertyEditorManager fallback - consider using a more isolated form of registration, e.g. on the BeanWrapper/BeanFactory!
2017-08-01 09:27:36.971 [main] INFO c.a.otter.canal.instance.spring.CanalInstanceWithSpring - start CannalInstance for 1-example
2017-08-01 09:27:36.987 [main] INFO c.a.otter.canal.instance.core.AbstractCanalInstance - start successful....
2017-08-01 09:27:44.004 [destination = example , address = /192.168..:**** , EventParser] ERROR c.a.otter.canal.parse.inbound.mysql.MysqlEventParser - dump address /192.168.30.46:3306 has an error, retrying. caused by
com.alibaba.otter.canal.parse.exception.CanalParseException: java.io.IOException: connect /192.168..:**** failure:java.net.ConnectException: Connection timed out
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:364)
at sun.nio.ch.Net.connect(Net.java:356)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:623)
at com.alibaba.otter.canal.parse.driver.mysql.MysqlConnector.connect(MysqlConnector.java:70)
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.connect(MysqlConnection.java:56)
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlEventParser.preDump(MysqlEventParser.java:86)
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:157)
at java.lang.Thread.run(Thread.java:722)
报错信息如上，我不知道是不是这个/的问题，但是我在配置文件并没有/的，看了源码也没有，不知道是什么原因，求助！！！！万分感谢