进行Servlet开发所需要的基本环境是JSDK以及一个支持Servlet的Web服务器
编写Servlet所需要的开发环境import java.io.*;
import java.servlet.*;
import javax.servlet.*;
public class RequestInfoExample extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
{
response.setContentType("text/html");
PRintWriter out = response.getWriter();
out.println("＜html＞");
out.println("＜body＞");
out.println("＜head＞");
out.println("＜title＞Request Information Example＜/title＞");
out.println("＜/head＞");
out.println("＜body＞");
out.println("＜h3＞Request Information Example＜/h3＞");
out.println("Method: " + request.getMethod());
out.println("Request URI: " + request.getRequestURI());
out.println("Protocol: " + request.getProtocol());
out.println("PathInfo: " + request.getPathInfo());
out.println("Remote Address: " + request.getRemoteAddr());
out.println("
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