They can dynamically intercept requests sent to and responses returned by a Servlet (or JSP) deployed in a Servlet container.
它们可以动态地拦截发送到servlet容器中部署的servlet(或jsp)的请求和返回的响应。
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Next, we will define an assign activity that copies the information returned from JoeLaptops to the container that will be used to send information to the Inventory manager.