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How can I get the ServletContext inside an Interceptor in Spring MVC 3?
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It's used to wire the configurations from Spring beans together and use them for the application. Use ApplicationContext if you want to retrieve the information of Spring beans. Use ServletContext if you want to get/set attribute those shared to all Servlet.
ServletConfig is used by only single servlet to get configuration information, whereas ServletContext is used by multiple objects to get configuration information. ServletConfig object is one per servlet class and destroyed once the servlet execution is completed.
You can have as many DispatcherServlets as you want. Basically what you need to do is duplicate the configuration and give the servlet a different name (else it will overwrite the previous one), and have some separate configuration classes (or xml files) for it.
Since interceptor is a bean, you can simply autowire it:
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