博客搬家了,在这住下来了...
好久前的看的一本书，工作几年了， 现在都快忘记，基础还是得记录下来，摘自书里，以便不时之需
import java.io.IOException;
import java.io.PrintWriter;
import java.security.Principal;
import java.util.Locale;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.helloweenvsfei.util.IpUtil;
public class RequestServlet extends HttpServlet {
private static final long serialVersionUID = -7936817351382556277L;
/**
* @param accept
* @return 客户端浏览器接受的文件类型
*/
private String getAccept(String accept){
StringBuffer buffer = new StringBuffer();
if(accept.contains("image/gif")) buffer.append("GIF 文件, ");
if(accept.contains("image/x-xbitmap")) buffer.append("BMP 文件, ");
if(accept.contains("image/jpeg")) buffer.append("JPG 文件, ");
if(accept.contains("application/vnd.ms-excel")) buffer.append("Excel 文件, ");
if(accept.contains("application/vnd.ms-powerpoint")) buffer.append("PPT 文件, ");
if(accept.contains("application/msword")) buffer.append("Word 文件, ");
return buffer.toString().replaceAll(", $", "");
}
/**
* @param locale
* @return 语言环境名称
*/
private String getLocale(Locale locale) {
if(Locale.SIMPLIFIED_CHINESE.equals(locale)) return "简体中文";
if(Locale.TRADITIONAL_CHINESE.equals(locale)) return "繁体中文";
if(Locale.ENGLISH.equals(locale)) return "英文";
if(Locale.JAPANESE.equals(locale)) return "日文";
return "未知语言环境";
}
/**
* @param userAgent
* @return 客户端浏览器信息
*/
private String getNavigator(String userAgent) {
if(userAgent.indexOf("TencentTraveler") > 0) return "腾讯浏览器";
if(userAgent.indexOf("Maxthon") > 0) return "Maxthon浏览器";
if(userAgent.indexOf("MyIE2") > 0) return "MyIE2浏览器";
if(userAgent.indexOf("Firefox") > 0) return "Firefox浏览器";
if(userAgent.indexOf("MSIE") > 0) return "IE 浏览器";
return "未知浏览器";
}
/**
* @param userAgent
* @return 客户端操作系统
*/
private String getOS(String userAgent) {
if(userAgent.indexOf("Windows NT 5.1") > 0) return "Windows XP";
if(userAgent.indexOf("Windows 98") > 0) return "Windows 98";
if(userAgent.indexOf("Windows NT 5.0") > 0) return "Windows 2000";
if(userAgent.indexOf("Linux") > 0) return "Linux";
if(userAgent.indexOf("Unix") > 0) return "Unix";
return "未知";
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
String authType = request.getAuthType();
String localAddr = request.getLocalAddr();
Locale locale = request.getLocale();
String localName = request.getLocalName();
String contextPath = request.getContextPath();
int localPort = request.getLocalPort();
String method = request.getMethod();
String pathInfo = request.getPathInfo();
String pathTranslated = request.getPathTranslated();
String protocol = request.getProtocol();
String queryString = request.getQueryString();
String remoteAddr = request.getRemoteAddr();
int port = request.getRemotePort();
String remoteUser = request.getRemoteUser();
String requestedSessionId = request.getRequestedSessionId();
String requestURI = request.getRequestURI();
StringBuffer requestURL = request.getRequestURL();
String scheme = request.getScheme();
String serverName = request.getServerName();
int serverPort = request.getServerPort();
String servletPath = request.getServletPath();
Principal userPrincipal = request.getUserPrincipal();
String accept = request.getHeader("accept");
String referer = request.getHeader("referer");
String userAgent = request.getHeader("user-agent");
String serverInfo = this.getServletContext().getServerInfo();
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
// 信息在浏览器中显示
out.println(" <HEAD><TITLE>Request Servlet</TITLE></HEAD>");
out.println(" <style>body, font, td, div {font-size:12px; line-height:18px; }</style>");
out.println(" <BODY>");
out.println("<b>您的IP为</b> " + remoteAddr + "<b>，您使用</b> " + getOS(userAgent) + " <b>操作系统</b>，" + getNavigator(userAgent) + " <b>。您使用</b> " + getLocale(locale) + "。<br/>");
out.println("<b>服务器IP为</b> " + localAddr + "<b>，位于</b> " + getAddress(localAddr) + "<b>；服务器使用</b> " + serverPort + " <b>端口，您的浏览器使用了</b> " + port + " <b>端口访问本网页。</b><br/>");
out.println("<b>服务器软件为</b>：" + serverInfo + "。<b>服务器名称为</b> " + localName + "。<br/>");
out.println("<b>您的浏览器接受</b> " + getAccept(accept) + "。<br/>");
out.println("<b>您从</b> " + referer + " <b>访问到该页面。</b><br/>");
out.println("<b>使用的协议为</b> " + protocol + "。<b>URL协议头</b> " + scheme + "，<b>服务器名称</b> " + serverName + "，<b>您访问的URI为</b> " + requestURI + "。<br/>" );
out.println("<b>该 Servlet 路径为</b> " + servletPath + "，<b>该 Servlet 类名为</b> " + this.getClass().getName() + "。<br/>");
out.println("<b>本应用程序在硬盘的根目录为</b> " + this.getServletContext().getRealPath("") + "，<b>网络相对路径为</b> " + contextPath + "。 <br/>");
out.println("<br/>");
out.println("<br/><br/><a href=" + requestURI + "> 点击刷新本页面 </a>");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}运行结果
您的IP为 127.0.0.1，您使用 Windows XP 操作系统，Firefox浏览器 。您使用 简体中文。
服务器IP为 127.0.0.1，位于 保留地址；服务器使用 8080 端口，您的浏览器使用了 11726 端口访问本网页。
服务器软件为：Apache Tomcat/6.0.35。服务器名称为 localhost。
您的浏览器接受 GIF文件,BMP文件,JPG文件。
您从 null 访问到该页面。
使用的协议为 HTTP/1.1。URL协议头 http，服务器名称 localhost，您访问的URI为 /servlet/servlet/RequestServlet。
该 Servlet 路径为 /servlet/RequestServlet，该 Servlet 类名为 com.servlet.RequestServlet。
本应用程序在硬盘的根目录为 D:\tools\apache-tomcat-6.0.35\webapps\servlet，网络相对路径为 /servlet。
