Spring Boot自定义Banner

秒速五厘米 2022-06-18 11:30 212阅读 0赞

# 新年彩蛋：Spring Boot自定义Banner #

[2016-12-31][]

[Spring Boot][]

被围观 **700** 次

在2016年的最后一天，借用Spring Boot的Banner向各位程序猿同仁们问候一声：Happy New Year。

[![banner-happy-new-year.png][]][banner-happy-new-year.png]

接下来我们就来介绍一下这个轻松愉快的自定义banner功能。实现的方式非常简单，我们只需要在Spring Boot工程的`/src/main/resources`目录下创建一个`banner.txt`文件，然后将ASCII字符画复制进去，就能替换默认的banner了。比如上图中的输出，就采用了下面的`banner.txt`内容：

${AnsiColor.BRIGHT_GREEN}

\#\# \#\# \#\#\# \#\#\#\#\#\#\#\# \#\#\#\#\#\#\#\# \#\# \#\# \#\# \#\# \#\#\#\#\#\#\#\# \#\# \#\# \#\# \#\# \#\#\#\#\#\#\#\# \#\#\# \#\#\#\#\#\#\#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\#\#\# \#\#\#\# \#\# \#\# \#\# \#\# \#\# \#\#\#\# \#\# \#\# \#\# \#\# \#\# \#\#\#\#\#\#\#\#\# \#\# \#\# \#\#\#\#\#\#\#\# \#\#\#\#\#\#\#\# \#\# \#\# \#\# \#\# \#\#\#\#\#\# \#\# \#\# \#\# \#\# \#\#\#\#\#\# \#\# \#\# \#\#\#\#\#\#\#\# \#\# \#\# \#\#\#\#\#\#\#\#\# \#\# \#\# \#\# \#\# \#\#\#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\#\#\#\#\#\#\#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\# \#\#\#\#\#\#\#\# \#\#\# \#\#\# \#\# \#\#\#\#\#\#\#\# \#\# \#\# \#\# \#\#  AnsiColor.BRIGHTREDApplicationVersion: \{application.version\}  application.formatted−versionSpringBootVersion: \{spring-boot.version\}$\{spring-boot.formatted-version\}

从上面的内容中可以看到，还使用了一些属性设置：

*  `${AnsiColor.BRIGHT_RED}`：设置控制台中输出内容的颜色
 *  `${application.version}`：用来获取`MANIFEST.MF`文件中的版本号
 *  `${application.formatted-version}</code>：格式化后的<code style="margin:0px 2px; padding:3px 5px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:'Source Code Pro',Consolas,Monaco,Menlo,Consolas,monospace; font-size:1em; vertical-align:baseline; color:rgb(233,105,0); background-color:rgb(248,248,248)">${application.version}`版本信息
 *  `${spring-boot.version}`：Spring Boot的版本号
 *  `${spring-boot.formatted-version}</code>：格式化后的<code style="margin:0px 2px; padding:3px 5px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:'Source Code Pro',Consolas,Monaco,Menlo,Consolas,monospace; font-size:1em; vertical-align:baseline; color:rgb(233,105,0); background-color:rgb(248,248,248)">${spring-boot.version}`版本信息

### 生成工具 ###

如果让我们手工的来编辑这些字符画，显然是一件非常困难的差事。所以，我们可以借助下面这些工具，轻松地根据文字或图片来生成用于Banner输出的字符画。

*  [http://patorjk.com/software/taag][http_patorjk.com_software_taag]
 *  [http://www.network-science.de/ascii/][http_www.network-science.de_ascii]
 *  [http://www.degraeve.com/img2txt.php][http_www.degraeve.com_img2txt.php]

### 年终彩蛋 ###

最后，奉上程序猿必备Banner “永不宕机佛祖”，祝大家：“新年快乐、永不宕机、永无Bug”！

${AnsiColor.BRIGHT_YELLOW}
    
    //                          _ooOoo_                               //
    //                         o8888888o                              //
    //                         88" . "88                              //
    //                         (| ^_^ |)                              //
    //                         O\  =  /O                              //
    //                      ____/`---'\____                           //
    //                    .'  \\|     |//  `.                         //
    //                   /  \\|||  :  |||//  \                        //
    //                  /  _||||| -:- |||||-  \                       //
    //                  |   | \\\  -  /// |   |                       //
    //                  | \_|  ''\---/''  |   |                       //
    //                  \  .-\__  `-`  ___/-. /                       //
    //                ___`. .'  /--.--\  `. . ___                     //
    //              ."" '<  `.___\_<|>_/___.'  >'"".                  //
    //            | | :  `- \`.;`\ _ /`;.`/ - ` : | |                 //
    //            \  \ `-.   \_ __\ /__ _/   .-` /  /                 //
    //      ========`-.____`-.___\_____/___.-`____.-'========         //
    //                           `=---='                              //
    //      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^        //
    //            佛祖保佑       永不宕机     永无BUG                  //

效果图：

[![banner-1.png][]][banner-1.png]

本文由  [程序猿DD-翟永超][DD-] 创作，采用  [CC BY 3.0 CN协议][CC BY 3.0 CN] 进行许可。 可自由转载、引用，但需署名作者且注明文章出处。如转载至微信公众号，请在文末添加作者公众号二维码。  
[![weixin.jpg][]][weixin.jpg]

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[2016-12-31]: http://blog.didispace.com/spring-boot-banner/
[Spring Boot]: http://blog.didispace.com/categories/Spring-Boot/
[banner-happy-new-year.png]: /images/20220618/c9b722adb415490a9137a1e04c53f2d7.png
[http_patorjk.com_software_taag]: http://patorjk.com/software/taag
[http_www.network-science.de_ascii]: http://www.network-science.de/ascii/
[http_www.degraeve.com_img2txt.php]: http://www.degraeve.com/img2txt.php
[banner-1.png]: /images/20220618/55632da88a6549a2b62176de04d963fe.png
[DD-]: http://blog.didispace.com/
[CC BY 3.0 CN]: http://creativecommons.org/licenses/by/3.0/cn
[weixin.jpg]: /images/20220618/a4550d8651bd40b4a6b079e2c6be47ac.png