在使用Spring MVC过程中，部署项目报错，报错信息如下：
八月 15, 2016 5:02:04 下午 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanInitializationException: Could not load properties; nested exception is java.io.FileNotFoundException: Could not open ServletContext resource [/db.properties]
at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.postProcessBeanFactory(PropertySourcesPlaceholderConfigurer.java:151)
.......
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: Could not open ServletContext resource [/db.properties]
at org.springframework.web.context.support.ServletContextResource.getInputStream(ServletContextResource.java:141)
at org.springframework.core.io.support.EncodedResource.getInputStream(EncodedResource.java:153)
... 51 more
...............................................................................................................................................................................
Maven项目，application-context.xml、db.properties文件均放置在src/main/resources目录下，Tomcat部署项目，src/main/resources目录下的配置文件默认位置为：{项目名}/WEB-INF/classes，而Spring却在项目根目录下寻找，肯定找不到，因此，配置时指定classpath目录下寻找即可。
解决方案如下：
<context:property-placeholder location="classpath:db.properties" />