java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.getHttpServletMapping()Ljavaxser

java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.getHttpServletMapping()Ljavax/ser 根本原因就是  Spring-boot内置的tomcat 和你导入的javax.servlet-api起冲突

 

解决办法把javax.servlet-api去掉