Accomplishing it is as simple as throwing an IF statement inside of our intercepting filter.
完成这一点可以简单到在我们的拦截过滤器中放一个IF语句。
The Intercepting filter pattern wraps existing application resources with a filter that intercepts the reception of a request and the transmission of a response.
拦截过滤器模式用一个过滤器封装了已有应用资源，这个过滤器拦截了请求的接收及响应的传递。
The Intercepting filter pattern wraps existing application resources with a filter that intercepts the reception of a request and the transmission of a response.
拦截过滤器模式用一个过滤器封装了已有应用资源，这个过滤器拦截了请求的接收及响应的传递。
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