底层使用可重入锁，估计处理起来困难。

可以自己封装一下：

public class InterruptedDruidDataSource extends DruidDataSource {

    @Override
    public DruidPooledConnection getConnection() throws SQLException {
        if (Thread.currentThread().isInterrupted()) {
            throw new InterruptedBeforeGettingConnectionException("获取链接之前，线程已被中断");
        }
        try {
            return super.getConnection();
        } catch (SQLException e) {
            if (e.getCause() instanceof InterruptedException) {
                if (!Thread.currentThread().isInterrupted()) {
                    Thread.currentThread().interrupt();
                }
                throw new InterruptedInGettingConnectionException("获取链接过程中，线程被中断", e);
            } else if (Thread.currentThread().isInterrupted()) {
                // shouldn't happen
                throw new InterruptedInGettingConnectionException("获取链接过程中，线程被中断（不应该发生）", e);
            }
            throw e;
        }
    }
}