Java EE servletcontext Read the resource file

There are two ways to read the contents of a resource file ServletContext:

Method 1.

public void doget (HttpServletRequest request, httpservletresponse response) throws Servletexception, IOException { InputStream in = This.getservletcontext (). getResourceAsStream ("/web-inf/classes/data.properties"); Properties Pros = new properties ();p ros.load (in); String username = pros.getproperty ("username"); String Password = pros.getproperty ("password"); System.out.println ("username =" + username); SYSTEM.OUT.PRINTLN ("password =" + password);}

It is important to note that the location of the Data.properties file is in the src folder of MyEclipse, why the getResourceAsStream method passed in the argument is indeed "/web-inf/classes/data.properties "

This is because these codes have webserver to run when the project is published. The data.properties file will be placed in the directory where the Tomcat installation files are located.

watermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvbtyzmtuymtm4mw==/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/southeast ">

So the number of references here is clear.

Method 2

public void doget (HttpServletRequest request, httpservletresponse response) throws Servletexception, IOException { String path = This.getservletcontext (). Getrealpath ("/web-inf/classes/data.properties"); FileInputStream in = new FileInputStream (path); Properties Pros = new properties ();p ros.load (in); String username = pros.getproperty ("username"); String Password = pros.getproperty ("password"); System.out.println ("username =" + username); SYSTEM.OUT.PRINTLN ("password =" + password);}

This first obtains the absolute path of the Data.properties file through the Getrealpath method, and then gets the file stream through FileInputStream.

Java EE servletcontext Read the resource file