IDEA file encoding modification

Original link: https://blog.csdn.net/cgl125167016/article/details/78666432
IDEA Chinese Tutorial: https://github.com/judasn/IntelliJ-IDEA-Tutorial/
BrotherThank you to these two bloggers~

This article introduces how to modify the file encoding in IntelliJ IDEA, refer to the IntelliJ IDEA Simplified Chinese special tutorial, students who are good in English can view the official English documentation

File encoding modification
   IntelliJ IDEA can modify the encoding of the project file under File -> Settings -> Editor -> File Encoding in the menu

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The default global encoding of IDE is UTF-8, and Project Encoding will be GBK of the operating system by default, which is generally modified to UTF-8
IntelliJ IDEA can set special encoding settings for Properties files, and it is also recommended to change toUTF-8, one of the key points is the property Transparent native-to-ascii conversion, which is generally checked, otherwise the comments in the Properties file will not be displayed in Chinese.
IntelliJ IDEA supports setting the encoding for the entire Project.In addition, it also supports encoding settings for directories and files.If you want to set the encoding of the directory, there may be a pop-up operation option that requires Convert encoding. It is strongly recommended to back up the files before conversion, otherwise the conversion process may become garbled and cannot be restored
   In addition, the individual files ofThe encoding can also be set like this

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   may pop up such a pop-up box

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Reload means to reload with the new code, the new code will not be saved to the file
Convert means to use the new code to convert, the new code will be saved to the file
The code file containing Chinese, Convert 2Xf2E6aEU7n685eHEbXGYHrmWn2y7a62UWBrtZzodVdD
Compilation errors caused by encoding problems
   Compilation error: cannot find symbols, unterminated string literals, etc. Solutions:

Because UTF-8 encoded files have BOM and no BOM, the compiler used by IntelliJ IDEA is javac by default, and this compilation can only compile files without BOM. Many Eclipse users are using IntelliJ IDEAThis problem is often encountered when developing Eclipse projects.Mainly because the compiler of Eclipse is Eclipse, which supports the compilation of files with BOM.Therefore, the solution is to perform BOM removal for this file
To remove BOM in batches, you can Google: batch removal of BOM, batch conversion without BOM and other keywords, various solutions have been provided on the Internet
If the above problems cannot be solvedSolved, and you also confirmed that all configuration encodings of IntelliJ IDEA are UTF-8, and the error file encoding is also UTF-8 without BOM, then there is another possibility that this situation will also occur: there is a problem with the project configuration file.The configuration file of project encoding is in: /project directory/.idea/encodings.xml.If you can modify this file, you can modify it. If not, delete the entire .idea directory, restart IntelliJ IDEA, and reconfigure the project.
Tomcat console output garbled characters
IDEA's unified console coding control, find idea.exe.vmoptions in your idea.bin or 64 directory or add -Dconsole.encoding=UTF-8 in 64. Note that it is console reference: https://stackoverflow.com/questions/35231291/intellij-idea-incorrect-encoding-in-console-output

  If your Tomcat console outputs garbled characters, and you have ensured that the console font settings in this article contain Chinese, you can also try adding: -Dfile.encoding to the VM parameters of Tomcat=UTF-8, as shown in the figure

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