Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured原因

问题的原因是Mybatis没有找到合适的加载类，进而导致spring-datasource-url加载不成功。这可能是由于项目配置或依赖问题导致的。解决办法是检查配置文件中的数据库URL是否正确，并确保项目中已经添加了正确的数据库依赖。另外，还可以尝试更新Mybatis和Spring Boot的版本，以确保它们的兼容性。在解决问题之前，还可以参考相关的链接和文档，了解更多关于Spring Boot项目配置和数据库访问的信息。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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