Could not retrieve transation read-only status server

1、錯誤描述

Caused by: java.sql.SQLException: Could not retrieve transation read-only status server
  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996)
  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:935)
  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:924)
  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:870)
  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:902)
  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:892)
  at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3607)
  at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3576)
  at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2107)
  at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2077)
  at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2062)
  at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_executeUpdate(FilterChainImpl.java:2723)
  at com.alibaba.druid.filter.FilterAdapter.preparedStatement_executeUpdate(FilterAdapter.java:1069)
  at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_executeUpdate(FilterEventAdapter.java:491)
  at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_executeUpdate(FilterChainImpl.java:2721)
  at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.executeUpdate(PreparedStatementProxyImpl.java:145)
  at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeUpdate(DruidPooledPreparedStatement.java:253)
  at org.springframework.jdbc.core.JdbcTemplate$2.doInPreparedStatement(JdbcTemplate.java:916)
  at org.springframework.jdbc.core.JdbcTemplate$2.doInPreparedStatement(JdbcTemplate.java:909)
  at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:644)
  ... 30 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure      

2、錯誤原因

       在運作系統時，将MySQL資料庫服務重新啟動了一下，結果再次通路系統出現這個錯誤

3、解決辦法

（1）關閉伺服器再重新開機

（2）連接配接資料庫的jar版本跟資料庫不一緻