IDEA 统一设置成UTF-8编码

设置1

　　File->Settings->Editor->File Encodings

设置2

　　File->Other Settings->Default Settings ->Editor->File Encodings

设置3

　　将项目中的.idea文件夹中的encodings.xml文件中的编码格式改为uft-8

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="Encoding" defaultCharsetForPropertiesFiles="UTF-8">
    <file url="PROJECT" charset="UTF-8" />
  </component>
</project>

设置4

　　File->Settings->Build,Execution,Deployment -> Compiler -> Java Compiler

　　设置 Additional command line parameters选项为

• encoding utf-8