Cannot instantiate the type
Cannot instantiate the type 在service中無法實例化dao時，一般要麼是構造函數時寫的不是public而是private，另一個可能是自己建立類（class）的時候自動構造的函數是可以看出圖片中用abstract修飾的類 總結：當出現這個問題時就檢查類的構造函數是否是private，或者這個類是否是抽象類 就可以了。
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相關文章
- 1. Cannot instantiate the type HttpClient問題
- 2. java.lang.RuntimeException: Cannot instantiate object of type tk.mybatis.mapper.generator.MapperPlug
- 3. Cannot instantiate object of type org.mybatis.generator.plugins.ToString 解決辦法
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- 5. 問題：Cannot instantiate object of type null at org.mybatis.generator.internal.ObjectFactory...
- 6. Cannot instantiate class: org.jnp.interfaces.NamingContextFactory
- 7. Cannot instantiate interface org.springframework.context.ApplicationListener
- 8. The type org.springframework.context.ConfigurableApplicationContext cannot be resolved.
- 9. STS中The type javax.servlet.ServletContext cannot
- 10. The type javax.servlet.http.HttpServletRequest cannot be resolved.