org.xml.sax.SAXParseException; lineNumber: 14; columnNumber: 9; schema_reference.4

org.xml.sax.SAXParseException; lineNumber: 14; columnNumber: 9; schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/beans/spring-beans-3.2.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.
解決： 
經過去除spring配置文件中schemaLocation的版本號（如2.0，3.0），讓spring本身匹配版本。一般狀況下，都是由於所依賴的spring版本號低於配置文件中指定的版本號。修改後以下 

<beans xmlns="http://www.springframework.org/schema/beans" 
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
       xmlns:context="http://www.springframework.org/schema/context" 
       xmlns:aop="http://www.springframework.org/schema/aop" 
       xsi:schemaLocation="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/aop 
    http://www.springframework.org/schema/aop/spring-aop.xsd">