parsing XML document from class path resource [applicationtext.xml]; nested exception is java.io.FileNotFoundException: class path resource [applicationtext.xml] cannot be opened because it does not e

控制台异常：

parsing XML document from class path resource [applicationtext.xml]; nested exception is java.io.FileNotFoundException: class path resource [applicationtext.xml] cannot be opened because it does not exist

报错原因是

xml名字可能写错了