[JAVA][log4j] 1.X→2.0

import org.apache.log4j.Logger;
↓↓

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;






Logger.getLogger("xxxAppender").error(e.getMessage());
↓↓
LogManager.getLogger("xxxAppender").error(e.getMessage());




log4j.xml/log4j.prperties
↓↓
log4j2.xml

(沒有prperties檔了.......==)