【文章推荐】Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed;springboot无法注入，注入后无效

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

错误: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 推荐指数：

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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 ...

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

　　白天创建Springboot项目对接Mybatis时，控制台与页面报错如下，出现了空指针，测试了一下数据库连接正确，里面内容也都有，遂进入debug，发现查询的返回值都是空，再将写的sql语句手动去执行也是正确，顿觉有些无奈。　　那就上百度查呗，发现几篇文章都提到 ...

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

以前犯过的一个小错误，不过忘记怎么修改了，所以还是记录下来好一点严重: 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 ...

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

首先来看报错的错误信息，一直都报空指针异常；仔细检查是因为mapper上没有@Autowired的注解加上这个注解就不会报错了~ ...

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

以上报错原因一般都是所在controller中引入service时候，忘记写注解@Resource或者@Autowired注解导致 ...

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

使用input上传文件时候出错，因为在form里提交了图文件，需要进行二进制编码，而我却少了这部分，即enctype="multipart/form-data"。更改后无错。表单中enctype="multipart/form-data"的意思，是设置 ...

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

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