プログラミング-MySQL
現象 先日こんな例外に遭遇しました。 java.lang.IllegalStateException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The driver was unable to create a connection due to an inability to establish the client portion of a socket. Thi…
現象 先日こんな例外に遭遇しました。 java.lang.IllegalStateException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The driver was unable to create a connection due to an inability to establish the client portion of a socket. Thi…