Maven mybatis-generator自动生成代码

Posted 2021-02-15 嘟神子

mybatis-generator可以自动生成代码，不管你是否喜欢它生成的代码的风格，它确实有助于我们更快速便捷的生成代码。

Maven pom文件配置：

<build>
        <pluginManagement>
            <plugins>
                <plugin> <!-- Run mvn mybatis-generator:generate to use. -->
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-maven-plugin</artifactId>
                    <version>${mybatis-generator.version}</version>
                    <configuration>
                        <configurationFile>src/main/resources/mapping/generatorConfig.xml</configurationFile>
                        <overwrite>true</overwrite>
                    </configuration>
                    <dependencies>
                        <dependency>
                            <groupId>com.oracle</groupId>
                            <artifactId>ojdbc6</artifactId>
                            <version>${ojdbc6.version}</version>
                        </dependency>
                    </dependencies>
                    <executions>
                        <execution>
                            <id>Generate MyBatis Artifacts</id>
                            <goals>
                                <goal>generate</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

generatorConfig.xml示例：

<?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>
  <context id="mysqlTables" targetRuntime="MyBatis3" defaultModelType="flat">
    <!-- 是否去除自动生成的注释 -->
    <commentGenerator>
      <property name="suppressAllComments" value="true" />
      <property name="suppressDate" value="true" />
    </commentGenerator>

    <!-- 数据库连接的信息 -->
    <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver"
                    connectionURL="jdbc:oracle:thin:@(description=(address = ( protocol = tcp)(host=ip)(port=port))(connect_data=(SERVER=DEDICATED)(SERVICE_NAME=数据库)))"
                    userId="帐号" password="密码"/>
    <javaTypeResolver>
      <!-- false：JDBC DECIMAL、NUMERIC类型解析为Integer，默认方式 -->
      <!-- true： JDBC DECIMAL、NUMERIC类型解析为java.math.BigDecimal -->
      <property name="forceBigDecimals" value="false"/>
    </javaTypeResolver>

    <!-- 生成模型的包名和位置 -->
    <javaModelGenerator targetPackage="com.pingan.bloan.bloan_flow.pojo.rcpmdata" targetProject="src/main/java">

      <!-- 是否让schema作为包的后缀 -->
      <property name="enableSubPackages" value="true"/>
      <!-- 从数据库返回的值被清理前后的空格 -->
      <property name="trimStrings" value="true"/>
    </javaModelGenerator>

    <!-- 生成映射文件的包名和位置 -->
    <sqlMapGenerator targetPackage="mapping/rcpmdata" targetProject="src/main/resources">
      <property name="enableSubPackages" value="true"/>
    </sqlMapGenerator>

    <!-- 生成DAO的包名和位置 -->

    <javaClientGenerator targetPackage="com.pingan.bloan.bloan_flow.dao.rcpmdata" targetProject="src/main/java" type="XMLMAPPER">
      <property name="enableSubPackages" value="true"/>
    </javaClientGenerator>


    <!-- 数据库表 -->
    <table tableName="INV_EDOC_SIGN" domainObjectName="EDocSignPojo" enableUpdateByPrimaryKey = "true" enableCountByExample="false" enableUpdateByExample="false"-->
           <!--enableDeleteByExample="false" enableSelectByExample="false"  selectByExampleQueryId="false"></table>
  </context>

</generatorConfiguration>

然后，你就可以在pom文件上右键，Run Maven，输入命令：mvn mybatis-generator:generate，即可自动生成代码了