问题描述
tomcat9.0.6启动后可以进入初始页面，可以访问jsp但是action提交后出现报错：404
The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
控制台警告：org.springframework.web.servlet.DispatcherServlet.noHandlerFound No mapping for POST /userinfo/login
解决方案：
web.xml添加
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:dispatcherServlet-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
2.检查资源包
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
3.idea 下路径 main后得package起始不要用com