mybatis-generator配置及问题

想试试mybatis逆向工程来生成简单sql语句，mybatis-generator真是帮了大忙

生成的文件

insert
update by primary key
update by example (using a dynamic where clause)
delete by primary key
delete by example (using a dynamic where clause)
select by primary key
select by example (using a dynamic where clause)
count by example

`generatorConfig.xml`配置

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!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="mysql" targetRuntime="MyBatis3" defaultModelType="hierarchical">
        <!-- 生成的Java文件的编码 -->
        <property name="javaFileEncoding" value="utf-8"/>
        <property name="suppressDate" value="true"/>
        <!-- 是否去除自动生成的注释 true：是 ： false:否 -->
        <property name="suppressAllComments" value="true"/>
        <property name="useActualColumnNames" value="false"/>
        <!--&lt;!&ndash; 分页插件 &ndash;&gt;-->
        <!--<plugin type="van.yzt.stock.common.mybatis.ForceMybatisGeneratorPlugin">
        </plugin>-->
        <!-- 注释生成器 -->
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!--数据库链接URL，用户名、密码 -->
        <jdbcConnection
                connectionURL="jdbc:mysql://localhost:3306/ssm"
                driverClass="com.mysql.jdbc.Driver" password="135799" userId="root">
        </jdbcConnection>

        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和
            NUMERIC 类型解析为java.math.BigDecimal -->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="true"/>
        </javaTypeResolver>

        <!-- 生成模型的包名和位置 -->
        <!-- 模型放在对应的模块下DAL层 -->
        <javaModelGenerator targetPackage="org.spring.springboot.dal.model"
                            targetProject="src/main/java">
            <!-- enableSubPackages: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>

        <!-- mapper manager放在对应层 -->
        <!-- 生成映射文件的包名和位置 -->
        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>

        <!-- mapper接口(Dao)生成的位置 -->
        <javaClientGenerator targetPackage="org.spring.springboot.dal.mapper"
                             targetProject="src/main/java"
                             type="XMLMAPPER">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        <!-- 要生成哪些表,生成完毕后请注释掉,否则会覆盖他人配置 -->
        <!--这里要注意的是一开始没有加schema，生成的代码重复，添加schema问题解决，
        Schma即数据库模式-->
        <table tableName="t_user" domainObjectName="TUser" schema="xxxx">
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
        <table tableName="t_login" domainObjectName="TLogin" schema="xxx">
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
        <table tableName="t_date" domainObjectName="TDate" schema="xxxxx">
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
    </context>
</generatorConfiguration>

使用代码方式使用mybatis-generator生成代码

public class GeneratorSqlmap {

    public void generator() throws Exception {

        List<String> warnings = new ArrayList<String>();
        boolean overwrite = true;
        //指定 逆向工程配置文件
        //要注意的是new File()中只能填写src/generatorConfig.xml否则会报错
        //java.io.FileNotFoundException: generatorConfig.xml (No such file or directory)
        File configFile = new File("src/generatorConfig.xml");
        ConfigurationParser cp = new ConfigurationParser(warnings);
        Configuration config = cp.parseConfiguration(configFile);
        DefaultShellCallback callback = new DefaultShellCallback(overwrite);
        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
                callback, warnings);
        myBatisGenerator.generate(null);

    }

    public static void main(String[] args) throws Exception {
        try {
            GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap();
            generatorSqlmap.generator();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}