java攔截器跨域報錯$PreFlightHandler cannot be cast to class org.springframework.web.method.HandlerMethod
一、問題描述 做者在寫springboot項目時發生了這個樣一個錯誤，在非跨域請求測試中沒有出現，可是在跨域請求測試時出現了問題（ … has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: It does not have HTTP ok status.）。
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- 1. tomcat報錯：class org.springframework.web.servlet.DispatcherServlet cannot be cast to class jakarta.ser...
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