https://blog.alyac.co.kr/4440 http://www.igloosec.co.kr/BLOG_Apache%20Log4j%20%EC%B7%A8%EC%95%BD%EC%A0%90%20%EB%B6%84%EC%84%9D%20%EB%B0%8F%20%EB%8C%80%EC%9D%91%EB%B0%A9%EC%95%88?searchItem=&searchWord=&bbsCateId=1&gotoPage=1
