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安装完tomcat后，启动tomcat，在浏览器中输入http://localhost:8080/检测是否安装正确新建系统环境变量 变量名：CATALINA_HOME变量值：安装tomcat的路径在CLASSPATH变量值中加上：;%CATALINA_HOME%\common\lib在PATH环境变量值中加上：;%CATALINA_HOME%\bin

Cookie cookies[] = request.getCookies();Cookie myCookie = null;if (cookies != null) {for (int i = 0; i {if (cookies[i].getName().equals("count")) {myCookie = cookies[i];break;}}}

if(application.getAttribute("count")==null){ application.setAttribute("count", new Integer(0)); }  Integer count = (Integer)application.getAttribute("count");  application.setAttribute("count"

Cookie[] cookies=request.getCookies();Cookie cookie_response=null;if(cookies!=null){cookie_response=cookies[0];}if(cookie_response!=null){out.println("上次次访问时间"+cookie_response.getValue

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