spring class path resource cant be found because it doesnt exist 由于不存在，无法找到Spring类路径资源。

我正在使用STS和Maven编写我的第一个春季helloworld程序，这是一个简单的IOC示例。

public class Soloapp {
    String solo;
    public Soloapp() {
        // TODO Auto-generated constructor stub
    }
    public String getSolo() {
        return solo;
    }
    public void setSolo(String solo) {
        this.solo = solo;
    }
}

实现类如下：

package com.solo.spring;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Soloimp {
    public static void main(String[] args) {
        ApplicationContext ap= new ClassPathXmlApplicationContext("/WEB-INF/spring/root-context.xml");
        Soloapp apa=  (Soloapp) ap.getBean("solo");
        System.out.println(apa.getSolo());
    }
}

出现了异常：

log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [WEB-INF/spring/root-context.xml]; nested exception is java.io.FileNotFoundException: class path resource [WEB-INF/spring/root-context.xml] cannot be opened because it does not exist
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:341)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:243)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127)
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:131)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:522)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:436)
    at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:83)
    at com.solo.spring.Soloimp.main(Soloimp.java:9)

它显示找不到XML文件位置，但我已经指定了位置，我正在使用Spring Tool Suite (STS)的MVC Maven项目，并且项目结构如下图所示：[项目结构图](https://i.stack.imgur.com/gwFQC.png)。