在IDEA中，使用maven实现逆向工程时，导入依赖后，发现不显示 Maven 插件 mybatis-generator。如下图为未显示mybatis-generator的pom文件代码。

 <build>
    <finalName>ready-04-mapper</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <groupId>org.mybatis.generator</groupId>
          <artifactId>mybatis-generator-maven-plugin</artifactId>
          <version>1.3.6</version>
          <configuration>
            <configurationFile>GeneratorMapper.xml</configurationFile>
            <verbose>true</verbose>
            <overwrite>true</overwrite>
          </configuration>
          <dependencies>
            <dependency>
              <groupId>mysql</groupId>
              <artifactId>mysql-connector-java</artifactId>
              <version>5.1.43</version>
            </dependency>
            <dependency>
              <groupId>org.mybatis.generator</groupId>
              <artifactId>mybatis-generator-maven-plugin</artifactId>
              <version>1.3.6</version>
            </dependency>
          </dependencies>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>

 解决方法：<pluginManagement>和<plugins>标签放在同一级，或者可以不写<pluginManagement>标签如下图所示：

  <build>
    <plugins>
      <plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <version>1.3.6</version>
        <configuration>
          <configurationFile>GeneratorMapper.xml</configurationFile>
          <verbose>true</verbose>
          <overwrite>true</overwrite>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.43</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>

操作完成后，刷新，即可出现