Eclipse Tomcat Java Web Project

There is a variable named "SITE_DOMAIN" saved in database and its value is http://192.168.0.71; A web project, running it on Eclipse Tomcat,I can get the correct value of "SITE_DOMAIN" from the database, while running it on Tomcat, the value of "SITE_DOMAIN" I got is http://192.168.0.61;

Does anybody know the reason?