解决- schema_reference.4: Failed to read schema document 'http://www.springframe

http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">  <!-- 把后面的3.x去掉 -->
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作者：大道至简_lyon
来源：CSDN
原文：https://blog.csdn.net/a5601564/article/details/51585232
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