JSP pages + getResource

I am wanting to link my jsp system to a html file link depending on the value selected from the database which i am creating at www.csc.liv.ac.uk/~u0mpf/jspdatabase

Some of the links exist and not only do I want to check they exist, I also want to display a green dot if they do, and a red if they dont exist.  With the green dot being a link.  I think I should be using getResource() but I am not sure on ho to implement this.


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getResource() is used to open a file in classpath. if you just want to check for existence of a file. you can just use:

java.io.File file = new java.io.File( "/file_system_absolute_path/page.html" );

if( file.exists() ) {
   // file exists
} else {
   // file doesn't exist

if your html files are under same webapp dire as you jsp is. you can use webapp relative path instead of using file system absolute path.

java.io.File file = new java.io.File( application.getRealPath("/path_relative_to_webapp_context/page.html") );

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