SpringBoot 工程下使用 Mybatis “偷懒”工程（反向工程）

Bertha 。 2023-02-20 10:45 4阅读 0赞

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> 博客主页:[https://blog.csdn.net/qq\_44895397][https_blog.csdn.net_qq_44895397]

## 拷贝 Mybatis 反向工程配置文件到项目的根目录下 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3_size_16_color_FFFFFF_t_70]

## 根据项目及表的情况，修改 GeneratorMapper.xml 配置 ##

### 1、指定JDBC驱动的位置 ###

![在这里插入图片描述][20200626095728708.png]

<classPathEntry location="D:\MySQL\jdbc\mysql-connector-java-8.0.19\mysql-connector-java-8.0.19.jar"/>

### 2、指定数据库连接信息 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3_size_16_color_FFFFFF_t_70 1]

### 3、指定生成的实体类所存放的位置 ###

![在这里插入图片描述][20200626100005799.png]

### 4、生成的mapper文件和映射文件存放的位置 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3_size_16_color_FFFFFF_t_70 2]

### 5、指定数据库的表名和类名 ###

**可以指定多个表**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3_size_16_color_FFFFFF_t_70 3]

## 在 pom.xml 文件中添加 mysql 反向工程依赖 ##

<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>
                </plugin>

## 双击命令，生成相关文件 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3_size_16_color_FFFFFF_t_70 4]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3_size_16_color_FFFFFF_t_70 5]

## GeneratorMapper.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>
        
        <classPathEntry location="D:\MySQL\jdbc\mysql-connector-java-8.0.19\mysql-connector-java-8.0.19.jar"/>
        
        <context id="tables" targetRuntime="MyBatis3">
            
            <commentGenerator>
                <property name="suppressAllComments" value="true"/>
            </commentGenerator>
            
            <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                            connectionURL="jdbc:mysql://localhost:3306/springboot?serverTimezone=UTC&characterEncoding=utf-8"
                            userId="root"
                            password="yky">
                <property name="nullCatalogMeansCurrent" value="true"/>
            </jdbcConnection>
            
            <javaModelGenerator targetPackage="com.yky.springoot.model"
                                targetProject="src/main/java">
                <property name="enableSubPackages" value="false"/>
                <property name="trimStrings" value="false"/>
            </javaModelGenerator>
            
            <sqlMapGenerator targetPackage="com.yky.springoot.mapper"
                             targetProject="src/main/java">
                <property name="enableSubPackages" value="false"/>
            </sqlMapGenerator>
            
            <javaClientGenerator type="XMLMAPPER"
                                 targetPackage="com.yky.springoot.mapper"
                                 targetProject="src/main/java">
                <property name="enableSubPackages" value="false"/>
            </javaClientGenerator>
            
            <table tableName="t_student" domainObjectName="Student"
                   enableCountByExample="false"
                   enableUpdateByExample="false"
                   enableDeleteByExample="false"
                   enableSelectByExample="false"
                   selectByExampleQueryId="false"/>
        </context>
    </generatorConfiguration>

[https_blog.csdn.net_qq_44895397]: https://blog.csdn.net/qq_44895397
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[20200626095728708.png]: https://img-blog.csdnimg.cn/20200626095728708.png
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[20200626100005799.png]: https://img-blog.csdnimg.cn/20200626100005799.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200626100139483.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0ODk1Mzk3,size_16,color_FFFFFF,t_70
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