springboot中遇到Failed to configure a DataSource: ‘url‘ attribute is not specified and no embedded data

springboot中遇到Failed to configure a DataSource: ‘url‘ attribute is not specified and no embedded data

问题区
创建.xml文件时出现问题

创建.xml文件时出现问题

问题区XML
pom.xml出现Java版本问题

pom.xml出现Java版本问题

问题区maven
Invalid bound statement (not found)（无法绑定）

Invalid bound statement (not found)（无法绑定）

问题区
idea的java类图标C不见，取而代之是J标识，且写代码无提示

idea的java类图标C不见，取而代之是J标识，且写代码无提示

问题区
Unable to import maven project: See logs for details

Unable to import maven project: See logs for details

问题区
Error building SqlSession

Error building SqlSession

问题区
错误：org.springframework.jdbc.support.SQLErrorCodesFactory - SQLErrorCodes loaded

错误：org.springframework.jdbc.support.SQLErrorCodesFactory - SQLErrorCodes loaded

问题区
Spring Whitelabel Error Page： This application has no explicit mapping for /error, so you are seeing

Spring Whitelabel Error Page： This application has no explicit mapping for /error, so you are seeing

问题区

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