javaWeb HttpServletRequest接口。-蒲公英云

javaWeb HttpServletRequest接口。

请求行：

package com.my.servlet;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.net.URL;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * Servlet implementation class ContextServlet
 */
@WebServlet("/ContextServlet")
public class ContextServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ContextServlet() {
        super();
    }
    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String method = request.getMethod();//获取使用的HTTP方法；
        String URi = request.getRequestURI();//获取请求中的资源名部分
        String protocol = request.getProtocol();//获得协议号
        String queryString = request.getQueryString();//获得查询语句
        String servletPath = request.getServletPath();
        String contextpath = request.getContextPath();//获得web应用路径
        PrintWriter out = response.getWriter();
        out.println("<p>请求使用的http方法"+method+"</p>");
        out.println("<p>请求行中的资源名部分"+URi+"</p>");
        out.println("<p>请求使用的协议"+protocol+"</p>");
        out.println("<p>查询字符串"+queryString+"</p>");
        out.println("<p>Servlet所映射的路径"+servletPath+"</p>");
        out.println("<p>请求资源所属的WEb应用路径"+contextpath+"</p>");
        out.flush();
        out.close();
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
}