IDEA使用 mybatis generator 自动生成mapper文件和model文件

1. 在pom.xml 文件中添加mybatis-generator-maven-plugin

   <!-- mybatis generator 自动生成代码插件 -->
               <plugin>
                   <groupId>org.mybatis.generator</groupId>
                   <artifactId>mybatis-generator-maven-plugin</artifactId>
                   <version>1.3.5</version>
                   <configuration>
                       <configurationFile>src/main/resources/myBatisGeneratorConfig.xml</configurationFile>
                       <verbose>true</verbose>
                       <overwrite>true</overwrite>
                   </configuration>
                   <dependencies>
                       <dependency>
                           <groupId>org.mybatis.generator</groupId>
                           <artifactId>mybatis-generator-core</artifactId>
                           <version>1.3.5</version>
                       </dependency>
                   </dependencies>
               </plugin>
   

2. 点击图片中红色圈出的按钮，将此mybatis-generator-maven-plugin装载进此项目

   

3. 在resources文件下，添加myBatisGeneratorConfig.xml文件

   <?xml version="1.0" encoding="UTF-8" ?>
   <!DOCTYPE generatorConfiguration PUBLIC
           "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
           "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd" >
   <generatorConfiguration>
   
       <!-- 本地数据库驱动程序jar包的全路径 -->
       <classPathEntry location="D:\WenJian\Maven\maven_rep\mysql\mysql-connector-java/5.1.44/mysql-connector-java-5.1.44.jar"/>
   
       <context id="context" targetRuntime="MyBatis3">
   
           <!--定义生成的java类的编码格式-->
           <property name="javaFileEncoding" value="UTF-8" />
   
           <!-- 数据库的相关配置 -->
           <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/whqbs" userId="root" password="qwertyuiop"/>
   
           <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和
              NUMERIC 类型解析为java.math.BigDecimal -->
           <javaTypeResolver>
               <property name="forceBigDecimals" value="false"/>
           </javaTypeResolver>
   
           <!-- 实体类生成的位置 -->
           <javaModelGenerator targetPackage="com.tit.springbootdemo01.model" targetProject="src/main/java">
               <property name="trimStrings" value="true"/>
           </javaModelGenerator>
   
           <!-- *Mapper.xml 文件的位置 -->
           <sqlMapGenerator targetPackage="com.tit.springbootdemo01.mapper" targetProject="src/main/java">
           </sqlMapGenerator>
   
           <!-- Mapper 接口文件的位置 -->
           <javaClientGenerator targetPackage="com.tit.springbootdemo01.mapper" targetProject="src/main/java" type="XMLMAPPER">
           </javaClientGenerator>
   
           <!-- 相关表的配置   tableName 表名 -->
           <table tableName="userinfo" enableSelectByExample="true"
                  enableDeleteByExample="true" enableCountByExample="true"
                  enableUpdateByExample="true" selectByExampleQueryId="true">
               <property name="ignoreQualifiersAtRuntime" value="false" />
               <property name="useActualColumnNames" value="false" />
           </table>
           <table tableName="orgdepartment" enableSelectByExample="true"
                  enableDeleteByExample="true" enableCountByExample="true"
                  enableUpdateByExample="true" selectByExampleQueryId="true">
               <property name="ignoreQualifiersAtRuntime" value="false"/>
               <property name="useActualColumnNames" value="false"/>
           </table>
           <table tableName="user" enableSelectByExample="true"
                  enableDeleteByExample="true" enableCountByExample="true"
                  enableUpdateByExample="true" selectByExampleQueryId="true">
               <property name="ignoreQualifiersAtRuntime" value="false"/>
               <property name="useActualColumnNames" value="false"/>
           </table>
           <table tableName="logreg" enableSelectByExample="true"
                  enableDeleteByExample="true" enableCountByExample="true"
                  enableUpdateByExample="true" selectByExampleQueryId="true">
               <property name="ignoreQualifiersAtRuntime" value="false"/>
               <property name="useActualColumnNames" value="false"/>
           </table>
       </context>
   </generatorConfiguration>
   

4. 此时配置已完成，点击红色圈出的地方，即可自动生成，切记要打开数据库