Mayor de Blasio refused to explain Thursday why he ignored the NYPD corruption trial that ended in the conviction of a former fund-raiser — even as the city’s top cop acknowledged the seriousness of the case.

“We’ve spoken about this 100 times. I’m just not talking about it anymore,” a cranky de Blasio said during an unrelated news conference in Brooklyn.

Hizzoner’s testy response came after he was asked to justify his Wednesday claim that he “tuned out” the trial because it didn’t involve him.

During the same event, Police Commissioner James O’Neill said he accepted the mixed verdicts that saw former Deputy Inspector James Grant cleared of taking bribes from former de Blasio donor Jeremy Reichberg, who was convicted on four of five counts.

“I respect the outcome, but what a terrible chapter in NYPD history over the last four or five years. I’m glad we can look at it in the rear-view mirror,” O’Neill said.

O’Neill also responded to a statement from Manhattan US Attorney Geoffrey Berman, who said Wednesday’s verdict proved the existence of “a years-long bribery scheme that led to tens of thousands of dollars in benefits being provided to a select group of NYPD officers.”

“There were a number of [police] executives that were retired — I think it was three years ago now — that…had some sort of relationship with the people that were on trial,” O’Neill said.

De Blasio also insisted: “Yeah, there’s been real consequences for people who did the wrong thing. That’s what matters here.”