How to read a configuration file in Java

Question

I am doing a project to build thread pooled web server  in which I have to set    the port number on which server listens  How many threads are there in thread pool Absolute Path of the root directory  and so many points    One way is to hard code all these variables in the code  that I did  But professionally it is not good   Now  I want to make one configuration file  in which I put all these data  and at the run time my code fetches these   How can I make configuration file for the above task

User · Answer

Create a configuration file and put your entries there.

SERVER_PORT=10000     
THREAD_POOL_COUNT=3     
ROOT_DIR=/home/

You can load this file using Properties.load(fileName) and retrieved values you get(key);

User · Answer

It depends     Start with Basic I O  take a look at Properties  take a look at Preferences API and maybe even Java API for XML Processing and Java Architecture for XML Binding  And if none of those meet your particular needs  you could even look at using some kind of Database

User · Answer

app config  app name Properties Sample Code app version 1 09       Source code   Properties prop   new Properties    String fileName    app config   InputStream is   null  try       is   new FileInputStream fileName     catch  FileNotFoundException ex              try       prop load is     catch  IOException ex              System out println prop getProperty  app name     System out println prop getProperty  app version         Output   Properties Sample Code 1 09

[java] How to read a configuration file in Java

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