java.io.FileNotFoundException:类路径资源应用程序上下文

我编写了以下代码：

public static void main(String[] args){
    ApplicationContext ctx= new ClassPathXmlApplicationContext("classpath:/org/postprocessor/conf/dataSupport.xml");
    DaoImpl daoImpl=null;
    FileZipper fileZipper=null;
}

但当我执行此操作时，会出现以下异常：

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 [org/postprocessor/config/dataSupport.xml]; nested exception is java.io.FileNotFoundException: class path resource [org/postprocessor/config/dataSupport.xml] cannot be opened because it does not exist
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:344)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:252)
    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:129)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:612)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:513)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at org.postprocessor.dao.DaoMain.main(DaoMain.java:12)
Caused by: java.io.FileNotFoundException: class path resource [org/postprocessor/config/dataSupport.xml] cannot be opened because it does not exist
    at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:330)
    ... 13 more

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为什么即使文件在那里也会出现此异常？

如果您使用的是maven project，它应该位于src/main/resources文件夹中。 例如：

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FileNotFoundException:class path resource[org/postprocessor/config/dataSupport.xml]无法打开，因为它不存在，这一点在我看来很清楚。但是文件在那里，我可以看到包和文件……是否缺少任何内容我确定是什么问题：它找不到您的文件。您确定xml文件在类路径中吗？看看你的输出文件夹，如果它是一个webapp，可能在WEB-INF/classes中。它不是一个webapp，但是这个文件在这个包src org/postprocessor/dataSupport.xml下。但是这个包在eclipse中显示为白色，而所有其他包都是棕色的。这是否意味着它不存在？对不起，我是maven项目的新手