spring-beans.dtd cannot be opened because it does not exist

18:58:12.091 [main] DEBUG o.s.b.factory.xml.BeansDtdResolver - Could not resolve beans DTD [http://www.springframework.org/dtd/spring-beans.dtd]: not found in class path

java.io.FileNotFoundException: class path resource [org/springframework/beans/factory/xml/spring-beans.dtd] cannot be opened because it does not exist

Modify applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
    "spring-beans.dtd">

Under resources directory, create directory org\springframework\beans\factory\xml.

then put spring-beans.dtd to it.

resources\org\springframework\beans\factory\xml\spring-beans.dtd

Reference: http://blog.youkuaiyun.com/zwhfyy/article/details/845774