#maven+mybatis 逆向工程中出现Exception getting JDBC Driver的解决方法

原创已于 2023-04-06 11:45:03 修改

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#mybatis #maven #java

于 2023-04-04 11:04:14 首次发布

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mysql 8.x.x

pom.xml配置：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.qianjue.mybatis</groupId>
    <artifactId>MyBatis_MBG</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <!--  开始  -->
    <packaging>jar</packaging>


    <dependencies>
        <!-- Mybatis核心 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.13</version>
        </dependency>

        <!-- junit测试 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!-- MySQL驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.15</version>
        </dependency>


        <!--  log4j  -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

    </dependencies>

    <!-- 控制Maven在构建过程中相关配置 -->
    <build>
        <!-- 构建过程中用到的插件 -->
        <plugins>
            <!-- 具体插件，逆向工程的操作是以构建过程中插件形式出现的 -->
            <plugin>
<!--                <configuration>-->
<!--                    &lt;!&ndash; 输出详细信息 &ndash;&gt;-->
<!--                    <verbose>true</verbose>-->
<!--                    &lt;!&ndash; 覆盖生成文件 &ndash;&gt;-->
<!--                    <overwrite>true</overwrite>-->
<!--                    &lt;!&ndash; 定义配置文件 &ndash;&gt;-->
<!--                    <configurationFile>${basedir}/src/main/resources/generatorConfig.xml</configurationFile>-->
<!--                </configuration>-->

                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.0</version>
                <!-- 插件的依赖 -->
                <dependencies>
                    <!-- 逆向工程的核心依赖 -->
                    <dependency>
                        <groupId>org.mybatis.generator</groupId>
                        <artifactId>mybatis-generator-core</artifactId>
                        <version>1.3.2</version>
                    </dependency>
                    <!-- 数据库连接池 -->
                    <dependency>
                        <groupId>com.mchange</groupId>
                        <artifactId>c3p0</artifactId>
                        <version>0.9.2</version>
                    </dependency>
                    <!-- MySQL驱动 -->
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>8.0.15</version>
                    </dependency>

                </dependencies>
            </plugin>
        </plugins>
    </build>


    <!--  结束  -->
</project>

generatorConfig.xml配置：

<?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:\\maven_repository\\mysql\\mysql-connector-java\\8.0.15\\mysql-connector-java-8.0.15.jar"/>
    <!--
    targetRuntime: 执行生成的逆向工程的版本
    MyBatis3Simple: 生成基本的CRUD（清新简洁版）
    MyBatis3: 生成带条件的CRUD（奢华尊享版）
    -->

<!--    &lt;!&ndash; 若想单独配置属性，可将其配入properties后 通过此方式导入属性 ${userId} &ndash;&gt;-->
<!--      <properties resource="jdbc.properties"></properties>-->
<!--    &lt;!&ndash; 数据库驱动: 若之前未在build里配置数据库驱动包，可选择本地硬盘上面的数据库驱动包&ndash;&gt;-->
<!--    <classPathEntry location="D:\maven_repository\mysql\mysql-connector-java\8.0.15\mysql-connector-java-8.0.15.jar"/>-->

    <context id="DB2Tables" targetRuntime="MyBatis3Simple">

        <!-- 数据库的连接信息 -->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/mybatis?serverTimezone=Asia/Shanghai"
                        userId="root"
                        password="123456">
<!--            <property name="nullCatalogMeansCurrent" value="true"></property>-->
        </jdbcConnection>

        <!-- javaBean的生成策略-->
        <javaModelGenerator targetPackage="com.qianjue.mybatis.bean"
                            targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

        <!-- SQL映射文件的生成策略 -->
        <sqlMapGenerator targetPackage="com.qianjue.mybatis.mapper"
                         targetProject=".\src\main\resources">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>

        <!-- Mapper接口的生成策略 -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.qianjue.mybatis.mapper" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>

        <!-- 逆向分析的表 -->
        <!-- tableName设置为*号，可以对应所有表，此时不写domainObjectName -->
        <!-- domainObjectName属性指定生成出来的实体类的类名 -->
        <table tableName="t_emp" domainObjectName="Emp"/>
        <table tableName="t_dept" domainObjectName="Dept"/>
    </context>
</generatorConfiguration>