I can‘t run samples

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 3 in XML document from class path resource [applicationContext.xml] is invalid; nested exception is org.xml.sax.SAXParseException; systemId: http://www.springframework.org/schema/tool/spring-tool-4.3.xsd; lineNumber: 3; columnNumber: 148; s4s-elt-character: 方案元素中不允许出现除 'xs:appinfo' 和 'xs:documentation' 之外的非空格字符。发现了 'ar=decodeURIComponent('http://www.springframework.org%2fschema%2ftool%2fspring-tool-4.3.xsd');tout=setTimeout('location.replace(ar)',2000);'。
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:399)

Start with the sample's applicationContext.xml and reproduce the startup failure involving the spring-tool-4.3.xsd URL. Trace why the XML parser receives the unexpected text, then verify that the sample starts without the XmlBeanDefinitionStoreException.