锘??xml version="1.0" encoding="utf-8" standalone="yes"?>
import java.io.*;
import java.uitl.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ShowParameters extends HttpServlet
聽(tīng){
聽(tīng)聽(tīng) public void doGet(HttpServletRequest request,HttpServletResponse response)
聽(tīng)聽(tīng) throws ServletException,IOException
聽(tīng)聽(tīng) {
聽(tīng)聽(tīng)聽(tīng)聽(tīng) response.setContentType("text/html");
聽(tīng)聽(tīng)聽(tīng)聽(tīng) PrintWriter out=response.getWriter();
聽(tīng)聽(tīng)聽(tīng)聽(tīng) String title="showParameters";
聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println(ServletUtilities.headWithTitle(title)+
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) "<BODY bgcolor=\"#FDF5E6\">\n"+
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) "<h1>"+title+"</h1>\n"+
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) "</body>"+
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) "<Table border=1 align=center>\n"+
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) "<tr bgcolor=\"#FFAD00\">\n"+
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) "<th>Parameters Name<TH>Parameter Value(s)");
聽(tīng)聽(tīng)聽(tīng)聽(tīng) Enumeration paramNames=request.getParameterNames();
聽(tīng)聽(tīng)聽(tīng)聽(tīng) while(paramNames.hasMoreElement())
聽(tīng)聽(tīng)聽(tīng)聽(tīng) {
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) String paramName=(String)paramNames.nextElement();
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println("<tr><Td>"+paramName+"\n<Td>");
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) String[] paramValues=request.getParamValues(paramName);
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) if(paramValues.length==1)
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) {
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) String paramValue=paramValues[0];
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) if(paramValue.length()==0)
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println("<I>No Value</I>");
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) else
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println(paramValue);
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) }
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) else
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) {
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println("<UL>");
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) for(int i=0;i<paramValues.length;i++)
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) {
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println("<LI>"+paramValues[i]);
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) }
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println("</UL>");
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) }
聽(tīng)聽(tīng)聽(tīng)聽(tīng) }
聽(tīng)聽(tīng)聽(tīng)聽(tīng) out.println("</talbe>\n</body></html>);聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng)
聽(tīng)聽(tīng) }
聽(tīng)聽(tīng) public void doPost(HttpServletRequest request,HttpServletResponse response)
聽(tīng)聽(tīng) throws ServletException,IOException
聽(tīng)聽(tīng) {
聽(tīng)聽(tīng)聽(tīng)聽(tīng) doGet(request,response);
聽(tīng)聽(tīng) }
聽(tīng)}
聽(tīng)聽(tīng)聽(tīng)聽(tīng)聽(tīng) 棣栧厛榪欎釜servlet鐢℉ttpServletRequest鐨刧etParameterNames鏂規(guī)硶媯(gè)鏌ュ嚭鎵鏈夊弬鏁板悕銆?br />聽(tīng)getParameterNames鏂規(guī)硶榪斿洖涓涓狤numeration,鍏朵腑鍖呭惈鍙傛暟鍚嶏紝嬈″簭鏈畾銆傛帴涓嬫潵servlet
聽(tīng)鐢ㄦ爣鍑嗙殑鏂瑰紡渚濇榪唬Enumeration,浣跨敤hasMoreElements紜畾浠涔堟椂鍊欏仠姝紝浣跨敤
聽(tīng)nextElement鑾峰彇姣忎釜鍙傛暟鍚嶃傜敱浜巒extElement榪斿洖鐨勬槸Object,鏁呰屽繀欏昏漿鎹負(fù)String,
聽(tīng)騫朵紶閫掔粰getParameterValues,寰楀埌涓涓瓧絎︽暟緇勩傚鏋滆繖涓暟緇勭鍙湁涓欏癸紝涓斾負(fù)絀?br />聽(tīng)瀛楃涓詫紝閭d箞璇ュ弬鏁版病鍊鹼紝璇ervlet琛ㄧず涓篘o Value銆傚鏋滆鏁扮粍涓惈鏈夊欏癸紝閭d箞
聽(tīng)servlet灝辨妸鎵鏈夌殑鏄劇ず鍑烘潵銆?/p>