Servlets request and response Serlet Container Request Browser kITE+Request Servet esponse Web Server Response
Servlets Request and Response
Servlet detail Is servlet loaded? Http request No oad 1 Invoke YO es Http response R un Servlet Client Server Servlet Container
Servlet Detail
First servlet import javax. servlet. *i importjavax.servlethttp.*i mport java.io.*i Public class Helloservlet extends Httpservlet i publicvoiddoget(httpServletrequestrequest Httpservletresponse response) throws ServletException, IOException i response. setcontentType("text/html"); PrintWriter out response. getwritero)i out println(<title>First Servlet</title>)i out println("<big>Hello Code Camp! </big>")i
First Servlet
Servlet classes Servlet Genericservlet Http servlet ServletRequest ServletResponse Httpservletrequest Http servletrespoNs
Servlet Classes
servlet ap接口 类、接口 Servlet javax. servlet Servlet, javax. servlet. Single ThreadModel javaxservlet.Genericservlet,javax.servlethttpHttpServlet Servlet配置 javax. servlet servletconfig Servlet# i javax. servlet ServletException, javax.servlet. UnavailableException 请求和应答 javax. servlet servletRequest,, javax. servlet ServletResponse javax serv let serv letInputstream, javax. servlet. serv letoutputstream javax.servlethttpHttpservletrequest, javax.servlethttpHttpServletresponse 会话跟踪 javax.servlethttpHttpsession javax.servlethttpHttpSessionBindinglistener javaxservlethttpHttpsessionbIndingevent Serv let上下文| javax. servlet Servletcontext Servlet协作 javax. servlet RequestDispatcher 其他 javaxservlet.httpCookiejavax.servlethttp.hTtputils
Servlet API接口 目的 类、接口 Servlet实现 javax.servlet.Servlet，javax.servlet.SingleThreadModel javax.servlet.GenericServlet，javax.servlet.http.HttpServlet Servlet配置 javax.servlet.ServletConfig Servlet异常 javax.servlet.ServletException，javax.servlet.UnavailableException 请求和应答 javax.servlet.ServletRequest，javax.servlet.ServletResponse javax.servlet.ServletInputStream，javax.servlet.ServletOutputStream javax.servlet.http.HttpServletRequest， javax.servlet.http.HttpServletResponse 会话跟踪 javax.servlet.http.HttpSession， javax.servlet.http.HttpSessionBindingListener javax.servlet.http.HttpSessionBindingEvent Servlet上下文 javax.servlet.ServletContext Servlet协作 javax.servlet.RequestDispatcher 其他 javax.servlet.http.Cookie，javax.servlet.http.HttpUtils