<dependency>
        <groupId>com.vonchange.common</groupId>
        <artifactId>mybatis-sql-extend</artifactId>
        <version>${spring.mybatis.mini}</version>
    </dependency>

public class SimpleLanguageDriver extends XMLLanguageDriver implements LanguageDriver {
    @Override
    public SqlSource createSqlSource(Configuration configuration, String script, Class<?> parameterType) {
        String sqlInXml = MybatisSqlLanguageUtil.sqlInXml("mapper",script,new MySQLDialect());
        return super.createSqlSource(configuration, sqlInXml, parameterType);
    }
}

-- 配置
mybatis:
  default-scripting-language-driver: com.vonchange.mybatis.test.config.SimpleLanguageDriver
  configuration:
    map-underscore-to-camel-case: true