[1,1] illegal character: 'ufeff' [1,10] class, interface, or enum expected

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 10.669 s
[INFO] Finished at: 2019-04-22T15:10:15+08:00
[INFO] Final Memory: 39M/220M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project taotao-manager-web: Compilation failure: Compilation failure: 
[ERROR] /D:/taotao/taotao-manager/taotao-manager-web/src/main/java/com/taotao/controller/ItemController.java:[1,1] illegal character: 'ufeff'
[ERROR] /D:/taotao/taotao-manager/taotao-manager-web/src/main/java/com/taotao/controller/ItemController.java:[1,10] class, interface, or enum expected
[ERROR] -> [Help 1]

每新建一个class文件，在编译时都报些错误，知道乱码？可怎么处理呢！

原来是自己不小心在修改 settings 配置时，选错。

按：Ctl + Alt + s  -》 Editor  > File Encodings > BOM for new UTF-8 files

Create  UTF-8 files:   with NO BOM  >  OK