浅谈java获取服务器基本信息
实现步骤:
(2)调用HttpServletRequest对象的getServerName()方法获取服务器名称
(3)调用HttpServletRequest对象的getServerPort()方法获取服务器端口
(4)首先调用getServletContext()方法获取ServletContext对象,然后调用ServletContext对象的getServerInfo()方法获取服务器环境信息名称、版本信息
(5)利用HttpServletResponse对象的PrintWriter将信息显示到页面
packageexample.servlet; importjava.io.IOException; importjava.io.PrintWriter; importjavax.servlet.ServletContext; importjavax.servlet.ServletException; importjavax.servlet.annotation.WebServlet; importjavax.servlet.http.HttpServlet; importjavax.servlet.http.HttpServletRequest; importjavax.servlet.http.HttpServletResponse; /** *ServletimplementationclassBrowserServer */ @WebServlet("/BrowserServer") publicclassBrowserServerextendsHttpServlet{ privatestaticfinallongserialVersionUID=1L; protectedvoidprocessRequest(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{ response.setContentType("text/html;charset=utf-8"); PrintWriterout=response.getWriter(); ServletContextcontext=getServletContext(); out.println(""); out.println(""); out.println("服务器信息 "); out.println(""); out.println(""); out.println("服务器名称:"+request.getServerName()+"
"); out.println("服务器端口:"+request.getServerPort()+"
"); out.println(""+context.getServerInfo()+"
"); out.println(""); out.println(""); out.close(); } protectedvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{ processRequest(request,response); } protectedvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{ processRequest(request,response); } }
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