TAILIEUCHUNG - Java C11. Advanced Servlet

provide request information for HTTP servlets. The servlet container creates an HttpServletRequest object and passes it as an argument to the servlet's service methods (doGet, doPost, etc).Client request information including : parameter name and values, and an input stream Attributes : custom information about a request. Extends the ServletRequest interface Returns the value of attribute : public Object getAttribute(String name) | Chapter 11. Advanced servlet ITSS Java Programming Dr. NGUYEN Hong Quang, FIT-HUT HttpServletRequest interface Outline provide request information for HTTP servlets. The servlet container creates an HttpServletRequest object and passes it as an argument to the servlet's service methods (doGet, doPost, etc). Request information Client request information including : parameter name and values, and an input stream Attributes : custom information about a request HttpServletRequest Interface Operating with attributes Extends the ServletRequest interface Returns the value of attribute : public Object getAttribute(String name) Stores an attribute in this request : public void setAttribute(String name, Object o) HttpServletRequest Interface Forwarding : cooperation between several Servlets Client Web browser Display reading page URL address Internet Application server Request Response Link in a Web page Servlet 1 Servlet 2 Servlet N Require parameters Proccessing data Connecting to database

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