Topic awaiting preservation: Anyone has example to keep db info in a .properties file in servlet? (Page 1 of 1)

I am learning JSP/Server and was using connection pooling for database connection using Java servlet. The database information are in the servlet. Can you please tell me how I could make these info in a properties files (for example configuration.properties) which I could edit externally so that I won't have to recompile my servlet each time I change the database password?

There is an example in c13 of http://www.cookconsulting.com/MasteringJSP/MJspSrc.zip

But I could n't make it work after trying for a few days. Can you please help me? (I am able to test the PropStore, it's working. But not sure how to test the ConnectionManager.java).

Thank you.

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Since the properties file is just a test file..I have my connection info listed as the following

dbDriverClass=com.microsoft.jdbc.sqlserver.SQLServerDriver
dbConnectionString=jdbc:microsoft:sqlserver://rhino:1433;databasename=Test;SelectMethod=Cursor
dbUser=user
dbPassword=tryandguess


These can be retrieved with the Properties object with a simple call

String user_name = properties.getProperty("dbUser");
String password = properties.getProperty("dbPassword");

etc....


this will give you the values you are looking for to create the connection.


Hope this is what you were looking for

Rhino,

What you have mentioned is exactly what I needed. I wonder if you could give me some sample code. I was thinking to have say database.properties and a servlet (connectionManager.java) that reads from thie properties file.

Thank you.

Properties properties = new Properties();
FileInputStream in = new FileInputStream("database.properties");
properties.load(in);

driverClass = properties.getProperty("dbDriverClass");
connectionString = properties.getProperty("dbConnectionString");
user = properties.getProperty("dbUser");
password = properties.getProperty("dbPassword");

Class.forName(driverClass);

Connection con = DriverManager.getConnection(connectionString, user, password);


You call also find more methods and info at http://java.sun.com and search for "Properties"

Hope this helps..