maven mybatis-generator:generate失败 Exception getting JDBC Driver
生成配置文件如下:
```
<?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">
        <!-- 配置数据库链接信息 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/ssm_crud?useSSL=false"
                        userId="root"
                        password="ABCabc123#">
        </jdbcConnection>

        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>

        <!-- 指定javaBean生成的位置 -->
        <javaModelGenerator targetPackage="io.ride.domain" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        <!-- 制定sql映射文件的生成位置 -->
        <sqlMapGenerator targetPackage="io.ride.mapper" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>

        <!-- 指定dao接口生成位置 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="io.ride.dao" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>

        <!-- 制定每个表的生成策略 -->
        <table tableName="t_emp" domainObjectName="Employee"></table>
        <table tableName="t_dpt" domainObjectName="Department"></table>
        <!--<table schema="DB2ADMIN" tableName="ALLTYPES" domainObjectName="Customer">-->
            <!--<property name="useActualColumnNames" value="true"/>-->
            <!--<generatedKey column="ID" sqlStatement="DB2" identity="true"/>-->
            <!--<columnOverride column="DATE_FIELD" property="startDate"/>-->
            <!--<ignoreColumn column="FRED"/>-->
            <!--<columnOverride column="LONG_VARCHAR_FIELD" jdbcType="VARCHAR"/>-->
        <!--</table>-->

    </context>
</generatorConfiguration>
```
maven配置
```
        <plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.3</version>
                <configuration>
                    <!-- 指定配置文件 -->
                    <configurationFile>mybatis-generator.xml</configurationFile>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.mybatis.generator</groupId>
                        <artifactId>mybatis-generator-core</artifactId>
                        <version>1.3.3</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
```
异常报错:
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.3:generate (default-cli) on project SSM_CRUD: Execution default-cli of goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.3:generate failed: Exception getting JDBC Driver
```
[ERROR] Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.3:generate (default-cli) on project SSM_CRUD: Execution default-cli of goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.3:generate failed: Exception getting JDBC Driver: com.mysql.jdbc.Driver -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.3:generate (default-cli) on project SSM_CRUD: Execution default-cli of goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.3:generate failed: Exception getting JDBC Driver
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
    at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-cli of goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.3:generate failed: Exception getting JDBC Driver
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
    ... 21 more
Caused by: java.lang.RuntimeException: Exception getting JDBC Driver
    at org.mybatis.generator.internal.db.ConnectionFactory.getDriver(ConnectionFactory.java:85)
    at org.mybatis.generator.internal.db.ConnectionFactory.getConnection(ConnectionFactory.java:54)
    at org.mybatis.generator.config.Context.getConnection(Context.java:733)
    at org.mybatis.generator.config.Context.introspectTables(Context.java:618)
    at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:254)
    at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:188)
    at org.mybatis.generator.maven.MyBatisGeneratorMojo.execute(MyBatisGeneratorMojo.java:199)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    ... 22 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
    at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
    at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at org.mybatis.generator.internal.ObjectFactory.internalClassForName(ObjectFactory.java:167)
    at org.mybatis.generator.internal.ObjectFactory.externalClassForName(ObjectFactory.java:122)
    at org.mybatis.generator.internal.db.ConnectionFactory.getDriver(ConnectionFactory.java:82)
    ... 29 more
[ERROR] 
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException

```
```
<plugin>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-maven-plugin</artifactId>
    <version>1.3.2</version>
    <configuration>
        <configurationFile>${basedir}/src/main/resources/generatorConfig.xml</configurationFile>
        <overwrite>false</overwrite>
        <verbose>true</verbose>
    </configuration>
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>
    </dependencies>
</plugin>
```
在plugin中单独依赖Mysql驱动包