servlets
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servlets [2007/10/09 18:11] – roumani | servlets [2008/02/04 19:05] (current) – roumani | ||
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This lecture covers the JEE's approach to server-side processing. It introduces the overall Tomcat architecture and focuses on the servlet container. The hands-on lab session will walk you through the installation of Tomcat and introduces you to the capabilities of its three engines, Coyote, Catalina, and Jasper. | This lecture covers the JEE's approach to server-side processing. It introduces the overall Tomcat architecture and focuses on the servlet container. The hands-on lab session will walk you through the installation of Tomcat and introduces you to the capabilities of its three engines, Coyote, Catalina, and Jasper. | ||
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* It invokes the '' | * It invokes the '' | ||
* It creates a pool of threads ready to invoke your servlet' | * It creates a pool of threads ready to invoke your servlet' | ||
- | * When a client connects, a thread is (randomly) chosen and assign for this request. | + | * When a client connects, a thread is (randomly) chosen and assigned to serve this request. |
* There is no client-to-thread mapping: the same client may get served by the same or a different thread. | * There is no client-to-thread mapping: the same client may get served by the same or a different thread. | ||
* When it is time to stop this servlet, the server invokes its '' | * When it is time to stop this servlet, the server invokes its '' | ||
== The API == | == The API == | ||
+ | * No need to override '' | ||
+ | * The request object enables you to retrieve socket data, HTTP data, the headers, the parameters, and the payload (for POST). | ||
+ | * Note that parameters are available as Map< | ||
+ | * The response object allows you to set the HTTP response line and headers as well as the payload. | ||
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===== To Do ===== | ===== To Do ===== | ||
* Read Sections 6.1 through 6.5 of our textbook. | * Read Sections 6.1 through 6.5 of our textbook. | ||
+ | * Take an overall look at the servlet API (accessible from our // | ||
+ | * Come to Prism for a hands-on lecture |
servlets.1191953496.txt.gz · Last modified: 2007/10/09 18:11 by roumani