说明：  本书为Java Servlet编程英文版第二版，主要介绍Java Servlet编程。
(The second edition of this popular book has been completely updated to add the new features of the Java Servlet API Version 2.2, and new chapters on servlet security and advanced communication. In addition to completely covering the 2.2 specification, we have included bonus material on the new 2.3 version of the specification.)