Caused by: java.lang.ClassNotFoundException: freemarker.template.Configuration

项目场景：

项目场景：示例:利用mybatis-plus 逆向工程生成各各文件

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问题描述

Exception in thread "main" java.lang.NoClassDefFoundError: freemarker/template/Configuration
	at com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine.init(FreemarkerTemplateEngine.java:41)
	at com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine.init(FreemarkerTemplateEngine.java:34)
	at com.baomidou.mybatisplus.generator.AutoGenerator.execute(AutoGenerator.java:106)
	at fit.littlefox.blog.generator.CodeGenerator.main(CodeGenerator.java:137)
Caused by: java.lang.ClassNotFoundException: freemarker.template.Configuration
	at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
	... 4 more

<!-- mybatis plus -->
<dependency>
     <groupId>com.baomidou</groupId>
     <artifactId>mybatis-plus-boot-starter</artifactId>
     <version>3.4.0</version>
 </dependency>
 <!--逆向工程-->
 <dependency>
     <groupId>com.baomidou</groupId>
     <artifactId>mybatis-plus-generator</artifactId>
     <version>3.4.0</version>
 </dependency>

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原因分析：

没有找到正确的jar包

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解决方案：

添加freemarker依赖

<dependency>
   <groupId>org.freemarker</groupId>
   <artifactId>freemarker</artifactId>
   <version>2.3.28</version>
</dependency>