Request中的方法调用

package com.stono.servlet;

import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class TestServlet2 extends HttpServlet {
private static final long serialVersionUID = 1L;

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
IOException {
System.out.println("do get method called!");
}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
IOException {
String method = req.getMethod();
System.out.println("method is " + method);
Enumeration<String> headerNames = req.getHeaderNames();
int i = 0;
while (headerNames.hasMoreElements()) {
String nextElement = headerNames.nextElement();
String header = req.getHeader(nextElement);
System.out.println(++i + ":" + nextElement + ":" + header);
}
System.out.println("===============COOKIE================");
Cookie[] cookies = req.getCookies();
for (Cookie cookie : cookies) {
System.out.println(cookie);
cookie.getName();
cookie.getValue();
cookie.getVersion();
}
System.out.println("================Remote===================");
String remoteAddr = req.getRemoteAddr();
String remoteHost = req.getRemoteHost();
int remotePort = req.getRemotePort();
String remoteUser = req.getRemoteUser();
System.out.println(remoteAddr);
System.out.println(remoteHost);
System.out.println(remotePort);
System.out.println(remoteUser);
System.out.println("================Server===================");
String serverName = req.getServerName();
int serverPort = req.getServerPort();
String servletPath = req.getServletPath();
System.out.println(serverName);
System.out.println(serverPort);
System.out.println(servletPath);
System.out.println("================Local===================");
String localAddr = req.getLocalAddr();
String localName = req.getLocalName();
int localPort = req.getLocalPort();
System.out.println(localAddr);
System.out.println(localName);
System.out.println(localPort);

System.out.println("do post method called");
String[] strings = req.getParameterValues("txt1");
System.out.println(strings.length);
for (String string : strings) {
System.out.println(string);
}
}
}