javascript - Testing database connection Using Javascript in outbound database connector in Mirth

Question

I have database handle in channelMap (for 1 connection for all messages) and I reuse the connection for all messages. Now, before performing inserts (to a MySQL database), I want to test if the connection still exists. How do I perform this test?

Answer 1

一种粗略的方法是获取连接并运行一个简单的查询（一个简单的 SELECT 或 SHOW 查询就可以）并捕获异常。

我认为这一切都基于 JTDS，所以你应该能够使用 Connection.closed 如果连接关闭将返回 true，如果连接打开则返回 false。