[ERROR] Too many connections 尚未解决

[ERROR] - com.alibaba.druid.support.logging.Log4j2Impl.error(Log4j2Impl.java:53) - create connection error, url: jdbc:mysql://10.1.200.45:3306/, errorCode 1040, state 08004
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: "Too many connections"
at sun.reflect.GeneratedConstructorAccessor95.newInstance(Unknown Source) ~[?:?]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_131]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_131]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.Util.getInstance(Util.java:387) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:917) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:896) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:885) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1038) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2255) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:795) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at sun.reflect.GeneratedConstructorAccessor86.newInstance(Unknown Source) ~[?:?]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_131]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_131]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464) ~[druid-1.0.31.jar:1.0.31]
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1529) ~[druid-1.0.31.jar:1.0.31]
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2109) [druid-1.0.31.jar:1.0.31]