处理异常：org.......PageNotFound.handleHttpRequestMethodNotSupported Request method 'POST' not supported

异常问题：

1.org.springframework.web.servlet.PageNotFound.handleHttpRequestMethodNotSupported Request method 'POST' not supported
2.Request method 'POST' not supported

你应该是用的Tomcat 8或者9，需要加入如下解决方法：需要在web.xml配置过滤器，亲测有效~

	<filter>
       <filter-name>HiddenHttpMethodFilter</filter-name>
       <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
   </filter>
 
   <filter-mapping>
       <filter-name>HiddenHttpMethodFilter</filter-name>
       <url-pattern>/*</url-pattern>
   </filter-mapping>
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