错误显示:
java.lang.RuntimeException: Cannot instantiate object of type tk.mybatis.mapper.generator.MapperPlugin
at org.mybatis.generator.internal.ObjectFactory.createInternalObject(ObjectFactory.java:182)
at org.mybatis.generator.internal.ObjectFactory.createPlugin(ObjectFactory.java:219)
at org.mybatis.generator.config.Context.generateFiles(Context.java:500)
at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:269)
at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:139)
at com.lemon.utils.GeneratorDisplay.generator(GeneratorDisplay.java:25)
at com.lemon.utils.GeneratorDisplay.main(GeneratorDisplay.java:32)
Caused by: java.lang.ClassNotFoundException: tk.mybatis.mapper.generator.MapperPlugin
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.mybatis.generator.internal.ObjectFactory.internalClassForName(ObjectFactory.java:148)
at org.mybatis.generator.internal.ObjectFactory.createInternalObject(ObjectFactory.java:178)
... 6 more
错误原因:
Maven 中的mybatis、mapper、pagehelper版本号过低或者过高不匹配
用这组试试:(可以试试其他的最新版本)
<!--mybatis-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<!--mapper-->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>1.2.4</version>
</dependency>
<!--pagehelper-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.3</version>
</dependency>