More than one fragment with the name [spring_web] was found[已解决]

报错的问题：
Caused by: java.lang.IllegalArgumentException: More than one fragment with the name [spring_web] was found. This is not legal with relative ordering. See section 8.2.2 2c of the Servlet specification for details. Consider using absolute ordering.
at org.apache.tomcat.util.descriptor.web.WebXml.orderWebFragments(WebXml.java:2257)
at org.apache.tomcat.util.descriptor.web.WebXml.orderWebFragments(WebXml.java:2215)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1127)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:768)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:301)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5048)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
… 27 more

在此错误前，还要子容器报错等错误，因为开始一直在查子容器报错的解决方案，导致总是不在根本解决问题，所以，一直烦恼了好久，最后还不得已换了eclipse和Tomcat，最后还是存在这个问题。后来就着眼于这个问题，最后找到了解决的方案。

解决方案：
在web.xml中的</display-name>后加上<absolute-ordering/>代码就解决了。