【文章推薦】Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed;springboot無法注入，注入后無效

原文：Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed;springboot無法注入，注入后無效

錯誤:Servlet.service for servlet dispatcherServlet in context with path threw exception Request processing failed nested exception is com.alibaba.excel.exception.ExcelAnalysisException: java.lang.NullPo ...

2021-04-26 16:36 0 719 推薦指數：

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Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception

java.lang.NullPointerException: null at com.book.app.web.UserController.findPageWith(UserControll ...

------>Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception

java.lang.NullPointerException: null at com.book.app.web.UserController.findPageWith(UserControll ...

錯誤：Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception

　　白天創建Springboot項目對接Mybatis時，控制台與頁面報錯如下，出現了空指針，測試了一下數據庫連接正確，里面內容也都有，遂進入debug，發現查詢的返回值都是空，再將寫的sql語句手動去執行也是正確，頓覺有些無奈。　　那就上百度查唄，發現幾篇文章都提到 ...

Servlet.service() for servlet [appServlet] in context with path [/item] threw exception [Request processing failed

以前犯過的一個小錯誤，不過忘記怎么修改了，所以還是記錄下來好一點嚴重: Servlet.service() for servlet [appServlet] in context with path [/item] threw exception [Request processing ...

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception

[dispatcherServlet] in context with path [] threw exception [Reque ...

關於Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception

首先來看報錯的錯誤信息，一直都報空指針異常；仔細檢查是因為mapper上沒有@Autowired的注解加上這個注解就不會報錯了~ ...

Servlet.service() for servlet [dispatcherServlet] in context with path [/heima_ssm_web] threw exception [Request processing failed; nested exception

以上報錯原因一般都是所在controller中引入service時候，忘記寫注解@Resource或者@Autowired注解導致 ...

報錯更改 Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception

使用input上傳文件時候出錯，因為在form里提交了圖文件，需要進行二進制編碼，而我卻少了這部分，即enctype="multipart/form-data"。更改后無錯。表單中enctype="multipart/form-data"的意思，是設置 ...

原文：Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed;springboot無法注入，注入后無效

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