What is difference between class path , file system?

Question

I know that:

1. ApplicationContext context = new ClassPathXmlApplicationContext("bean.xml");

   loads context definition from an XML

Answer 1

I think above opinion may have something wrong, FileSystemXmlApplicationContext can not access your whole file system, what it can only scan is your whole project folder.In order to prove my conclusion i make a example, first using ClasspathXmlApplicationContext and everything is normal, the second time i move beans.xml file to my desktop folder, so there is no beans.xml file in the project hirachy, and change ClassPathXmlApplicationContext to FileSytemXmlApplicationContext and something goes wrong, error trace below:

    INFO: Loading XML bean definitions from file [/Users/crabime/Development/IdeaProjects/springInterview/Users/crabime/Desktop/beans.xml]
Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from file [/Users/crabime/Development/IdeaProjects/springInterview/Users/crabime/Desktop/beans.xml]; nested exception is java.io.FileNotFoundException: Users/crabime/Desktop/beans.xml (No such file or directory)

So FileSystemXmlApplicationContext can only detect the current project all folder. For example you make a directory which named config under the project root directory, and you can change your Main Class code like below:

ApplicationContext atx = new FileSystemXmlApplicationContext("/config/beans.xml");

And everything will ok again. So if all like sinuhepop said i think there should something need to be changed.