Basic HTML version of Foils prepared 17 Nov 97

Foil 46 Read a File on the Server I

From Java Tutorial, July 1, 1996 CEWES Tutorial, CPS606, JSU Class CSC499 -- July 22-25 1997, Fall 97. by Nancy J. McCracken,Geoffrey C. Fox, Tom Scavo
Reading a file by URL for Foil 46
To read a file on the server, first instantiate a URL object:
try {
  • URL url = new URL( getCodeBase(), filename );
} catch ( MalformedURLException e ) {
  • System.err.println( "Bad URL:" + url.toString() );
}
where getCodeBase() returns the applet path. (Another method getDocumentBase() returns the path of the corresponding HTML document.)
Next, open a stream to this URL:
BufferedReader in =
  • new BufferedReader(
  • new InputStreamReader( url.openStream() ) );
The resulting character stream is treated like any other.

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