springboot maven mybatis generate插件的使用

Posted 2020-12-19 activestruggle

主要步骤：

• 首先需要在pom.xml中引入mysql依赖、mybatis启动器然后配置generate插件、配置generateConfig.xml的路径、配置资源(mapper.xml、application.yml等)路径
• 然后配置generateConfig.xml（放到资源路径下）
• 运行maven generator命令生成代码

1.pom.xml

向<dependencies>添加如下依赖

<!--mybatis启动器-->
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.2</version>
</dependency>
<!-- mysql驱动 -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.19</version>
</dependency>

向<build>标签下的<plugins>标签添加如下配置


<!--配置generator插件-->
<plugin>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-maven-plugin</artifactId>
    <version>1.3.7</version>
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.19</version>
        </dependency>
    </dependencies>
<!--指定配置文件的路径 ${project.basedir}项目根路径-->
    <configuration>
        <configurationFile>${project.basedir}/src/main/resources/generateConfig.xml</configurationFile>
        <verbose>true</verbose>
        <overwrite>true</overwrite>
    </configuration>
</plugin>   



向<build>标签添加如下配置


<resources>
    <resource>
        <directory>src/main/resources</directory>
        <includes>
        <include>**/*.xml</include>
        <include>**/*.yml</include>
        </includes>
    </resource>
</resources>
            

View Code

 2.generateConfig.xml

<?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>
    <!-- 数据库驱动 -->
    <!--<properties resource="prop/jdbc-mysql.properties" />-->
    <!-- 指定数据连接驱动jar地址 -->
    <!--<classPathEntry location="${driverPath}" />-->
    <context id="context" targetRuntime="MyBatis3">
       <!-- <plugin type="org.mybatis.generator.plugins.SerializablePlugin" />
        <plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin" />
        <plugin type="org.mybatis.generator.plugins.RenameExampleClassPlugin">
            <property name="searchString" value="Example$" />
            <property name="replaceString" value="Criteria" />
        </plugin>-->
        <!-- 是否去掉生成出来的代码的注解 -->
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
            <property name="suppressDate" value="true" />
        </commentGenerator>
        <!--数据库链接URL，用户名、密码 -->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/springboot?characterEncoding=utf8&amp;useSSL=false&amp;serverTimezone=UTC&amp;rewriteBatchedStatements=true"
                        userId="root" password="root">
        </jdbcConnection>
        <!--默认false 把jdbc DECIMAL 和 NUMERIC 类型解析为Integer，为true时，解析为java.math.BigDecimal-->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>
        <!-- 生成pojo类的包名和位置 -->
        <javaModelGenerator targetPackage="com.example.springbootmybatis.pojo"
                            targetProject=".srcmainjava">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>
        <!-- 生成映射文件的包名和位置 -->
        <sqlMapGenerator targetPackage="mapper"
                         targetProject=".srcmain
esources">
            <property name="enableSubPackages" value="true" />

        </sqlMapGenerator>
        <!-- 生成mapper的包名和位置 -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.example.springbootmybatis.mapper" targetProject=".srcmainjava">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>
        <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名 -->
        <table tableName="users" domainObjectName=""></table>

    </context>
</generatorConfiguration>

View Code

3.运行maven generator命令生成代码