黑鱼

一.理解造成的原因 1.sharding没有实现isValid方法 参考类AbstractUnsupportedOperationConnection @Override public final boolean isValid(final int timeout) throws SQLException { throw new SQLFeatureNotSupportedException("isValid"); } 2. 调用isValid的原因 参考类DataSourceH.

public class MyException extends Exception{ private String message; public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } @Ov...