!주의 본 포스트는 단순 기록하는 포스트입니다. [http-nio-8080-exec-6] ERROR o.a.c.c.C.[.[.[.[dispatcherServlet] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.StringIndexOutOfBoundsException: String index out of range: 0] with root cause java.lang.StringIndexOutOfBoundsException: String index out of range: 0 조회 시 ..