JAVA - Reading file relatively

This will all getting the base path of you application to know how/where to read the file

Eclipse

Java Application

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* File function

File fXmlFile = new File("test.xml");

The will look on the PROJECT_DIR path.

/YOUR/PROJECT_DIR/test.xml

* FileInputStream

FileInputStream is = new FileInputStream("test.cfg.xml");

The will look on the ECLIPSE path.

/YOUR/ECLIPSE_DIR/test.cfg.xml

* Loader context

ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
classLoader.getResource(".").getPath()

This will return: PROJECT_DIRt/build/classes/

Web Application(Running in Tomcat)

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* Loader context

ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
classLoader.getResource(".").getPath()

This will return the path TOMCAT_DIR/lib/

* File function

File fXmlFile = new File("test.xml");

The will look on the ECLIPSE_DIR path.

/YOUR/ECLIPSE_DIR/test.xml

Deployed

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* Java Application

* Web Application(Running in Tomcat)

* Loader context
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
classLoader.getResource(".").getPath()
This will return the path TOMCAT_DIR/lib/

* File function
File fXmlFile = new File("test.xml");
The will look on the TOMCAT_DIR path.

/TOMCAT_DIR/test.xml