Caused by: java.lang.IllegalArgumentException: The servlets named [OrdersController] and [OrdersCont

Caused by: java.lang.IllegalArgumentException: The servlets named [OrdersController] and [OrdersControllers] are both mapped to the url-pattern [/orders] which is not permitted

发生这种错误的原因是：因为你在创建servlets的时候有相同的

解决这个方法：在

4.由于相同，所以直接删除相同就行了