2017.04.24 14:50:42 INFO  web[o.sonar.db.Database] Create JDBC data source for jdbc:mysql://localhost:3306/sonar?useUnicode=true&chara$
2017.04.24 14:50:42 ERROR web[o.a.c.c.C.[.[.[/]] Exception sending context initialized event to listener instance of class org.sonar.s$
java.lang.IllegalStateException: Can not connect to database. Please check connectivity and settings (see the properties prefixed by '$
        at org.sonar.db.DefaultDatabase.checkConnection(DefaultDatabase.java:104) ~[sonar-db-5.6.jar:na]
        at org.sonar.db.DefaultDatabase.start(DefaultDatabase.java:71) ~[sonar-db-5.6.jar:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131]
        at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.invokeMethod(ReflectionLifecycleStrategy.java:110) ~[picocontainer-$
        at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.start(ReflectionLifecycleStrategy.java:89) ~[picocontainer-2.15.jar$
        at org.sonar.core.platform.ComponentContainer$1.start(ComponentContainer.java:320) ~[sonar-core-5.6.jar:na]
        at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:8