[logback-dev] Question about logback

[stephen.t.chan at asia.bnpparibas.com]

Hi all,

I am running tomcat6 as http server and specify jdbc connection(with login 
credential) in context.xml.
Besides, I have defined to use DBAppender in logback.xml to write log to 
database.
My question is, instead of directly write the login credential in the 
logback.xml file, 
how to use property substitution to retrieve the credential from tomcat 
context.xml?

for example,

        <appender name="DB" class="com.eqd.iprice.appender.DBAppender">
                <connectionSource class=
"ch.qos.logback.core.db.DriverManagerConnectionSource">
                <dataSource class="javax.sql.DataSource">
                        <driverClass>${driverClass}</driverClass>
                        <url>${url}</url>
                        <user>${username}</user>
                        <password>${password}</password>
                </dataSource>
                </connectionSource>
        </appender>

Those ${XXXX} are retrieved from tomcat context.xml .

Thanks.

Stephen


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