Bean dynamic values in Spring MVC-Collection of common programming errors

I had made project on Spring MVC few months back.

I am facing a problem that values on the bean are changing from time to time.

After changing the values, I needs to restart the Apache Tomcat.

How can I implement the change in values without restarting Apache Tomcat.

Kindly find following bean declaration in spring-servlet.xml file

     

    
        
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I am not a experienced person in Spring domain.

Kindly provide some links so that I can understand these concepts.