搭建spring boot項目時啟動出現的問題，先來看異常片段：
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-06-04 09:32:21.462 ERROR 18900 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
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APPLICATION FAILED TO START
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Description:
Field userMapper in com.drefore.demozw.admin.service.TestOneService required a bean of type 'com.drefore.demozw.mapper.UserMapper' that could not be found.
The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean of type 'com.drefore.demozw.mapper.UserMapper' in your configuration.
提示mapper未找到無法注入
在網上搜索了一圈有說項目結構的問題，application入口類應該放在 mapper同級目錄下，可是我的目錄結構沒問題，可能別的地方適用，在我這只好另找辦法，最后在application入口類上添加該注解解決問題
@MapperScan("mapper文件夾路徑")