IDEA maven编译项目时报错 非法字符: \65279或 需要class, interface或enum

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.2:compile (default-compile) on project king_p2p_utils: Compilation failure: Compilation failure:
[ERROR] /D:/JetBrains/IntelliJ IDEA 2017.3.5/workspace/src/main/java/com/lee/utils/InvestTradeType.java:[1,1] 非法字符: \65279
[ERROR] /D:/JetBrains/IntelliJ IDEA 2017.3.5/workspace/p2p/src/main/java/com/lee/utils/InvestTradeType.java:[1,10] 需要class, interface或enum
[ERROR] /D:/JetBrains/IntelliJ IDEA 2017.3.5/workspace/p2p/src/main/java/com/lee/utils/FundsFlowType.java:[1,1] 非法字符: \65279
[ERROR] /D:/JetBrains/IntelliJ IDEA 2017.3.5/workspace/p2p/src/main/java/com/lee/utils/FundsFlowType.java:[1,10] 需要class, interface或enum
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command

解决方法：

    1. 选择file encoding

    2. 再选择UTF-8编码

    3. 当你的文件编码格式与上一步操作选择的不一致的时候会出现这个提示框

    4. 点击Convert就OK