【文章推薦】EF架構獲取數據時報錯：The ObjectContext instance has been disposed and can no longer be used for operations that require a connection. Do you want to correct the value?

原文：EF架構獲取數據時報錯：The ObjectContext instance has been disposed and can no longer be used for operations that require a connection. Do you want to correct the value?

場景： EF底層，獲取完主表，點擊按鈕，添加主表，字表內容時，報以上錯誤解決方案：在EF文件的空白處右鍵屬性，將應用延遲加載，改為False ...

2018-04-24 18:47 0 903 推薦指數：

Caused by: java.sql.SQLException: Couldn't perform the operation getAutoCommit: You can't perform any operations on this connection. It has been

系統啟動，一段時間不操作，然后在來操作時，報錯如下： Caused by: java.sql.SQLException: Couldn't perform the operation getAutoCommit: You can't perform any operations ...

Couldn't perform the operation setAutoCommit: You can't perform any operations on this connection. I

錯誤描述：java.sql.SQLException: Couldn't perform the operation setAutoCommit: You can't perform any operations on this connection. It has been ...

WARNING: The file has been changed since reading it!!! Do you really want to write to it (y/n)?

關掉正在使用該文件的進程 ...

nested exception is com.mongodb.MongoWaitQueueFullException: Too many operations are already waiting for a connection. Max number of operations

...

gedit保存出現The file has been changed since reading it!!! Do you really want to write to it (y/n)?y

虛擬機最近總出現這個問題，每次按完ctrl+S都要點擊一下這個yes，很煩，以為是gedit的什么bug，后來在網上瞎搜發現這個問題是由於虛擬機的時間和主機時間不同步導致的。在VMWare Too ...

（解決方法）Android studio 運行時報錯Do you want to uninstall the existing application?的解決方法

在Android studio中，有時運行會報錯： WARNING: Uninstalling will remove the application data!Do you want to uninstall the existing application ...

tomcat報錯this web application instance has been stopped already問題

上網搜了下，大部分的報錯原因：重啟時候之前的tomcat未正常關閉，導致在重啟時候報了這個問題。mac下解決： ps -ef|grep tomcat 找到在進行的tomcat ，kill -9 進程號，關閉即可。然而自己的原因是：編譯的target目錄 ...

vue報錯： can no longer be used directly inside or

最近在學習vue3，在搭建項目的時候，使用 keep-alive 的包裹 router-view 會有警告信息 <router-view> can no longer be used directly inside <transition> or < ...

原文：EF架構獲取數據時報錯：The ObjectContext instance has been disposed and can no longer be used for operations that require a connection. Do you want to correct the value?

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