HttpServletRequest获取变量的含义
request.setCharacterEncoding("utf-8");//设置request编码方式request.getLocalAddr();//获取本地IP，即服务器IPrequest.getLocalName();//获取本地名称，即服务器名称request.getLocalPort();//获取本地端口号，即Tomcat端口号request.getLocale();//用户的语言环境request.getContextPath();//context路径request.getMethod();//GET还是POSTrequest.getProtocol();//协议，http协议request.getQueryString();//查询字符串request.getRemoteAddr();//远程IP，即客户端IPrequest.getRemotePort();//远程端口，即客户端端口request.getRemoteUser();//远程用户request.getRequestedSessionId();//客户端的Session的IDrequest.getRequestURI();//用户请求的URLrequest.getScheme();//协议头，例如httprequest.getServerName();//服务器名称request.getServerPort();//服务器端口request.getServletPath();//Servlet路径
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