IDEA中使用MyBatis generator插件配置generator.xml读取不到配置文件

环境：
IDEA 2019 JDK1.8 mybatis-generator-maven-plugin为1.3.2
1.在maven中我已经引入了mybatis-generator-maven-plugin，如图：

2.然后开始配置generator.xml文件，此次项目中的所有配置文件都放在resources下，如图：

3.报错信息为：Cannot resolve file 'datasource.properties'

4.运行mybatis-generator:generator控制台报错信息如下：

[ERROR] Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate (default-cli) on project mmall: Access denied for user 'root'@'127.0.0.1' (using password: YES) -> [Help 1]

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[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/MojoExecutionException

https://blog.csdn.net/qiuwenjie123/article/details/80473606

classpath:datasource.properties

需要在pom文件中指明配置文件地址，详情见我的博客中“Mybatis自动生成详解——附代码”一文