【Servlet-0】Request对象请求行数据

获取请求行数据的方法

获取请求消息数据方法：
　１.获取请求方式：GET
　　String getMethod()
　2.获取虚拟目录：/15-Http-Request
　　String getContextPath()
　3.获取Servlet路径：/ghh
　　String getServletPath()
　4.获取get方式请求参数：name=zhangsan
　　String getQueryString()
　5.获取请求URI(统一资源标识符)：/15-Http-Request/ghh
　　String getRequestURI()
　6.获取请求URL(统一资源定位符)：http://localhost/15-Http-Request
　　StringBuffer getRequestURL()
　7.获取协议及版本：HTTP/1.1
　　String getProtocol()
　8.获取客户机的IP地址：
　　String getRemoteAddr()

package Request;

import javax.servlet.ServletException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/RequestDemo1")
public class RequestDemo1 extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        //１.获取请求方式：GET
        String method = request.getMethod();
        System.out.println(method);
        //2.获取虚拟目录：/15-Http-Request
        String contextPath = request.getContextPath();
        System.out.println(contextPath);
        //3.获取Servlet路径：/ghh
        String servletPath =request.getServletPath();
        System.out.println(servletPath);
        //4.获取get方式请求参数：name=zhangsan
        String queryString = request.getQueryString();
        System.out.println(queryString);
        //5.获取请求uri：/15-Http-Request/ghh
        String requestURI = request.getRequestURI();
        System.out.println(requestURI);
        //6.获取请求URL：http://localhost/15-Http-Request
        StringBuffer requestURL = request.getRequestURL();
        System.out.println(requestURL);
        //7.获取协议及版本：HTTP/1.1
        String protocol = request.getProtocol();
        System.out.println(protocol);
        //8.获取客户机的IP地址：
        String remoteAddr = request.getRemoteAddr();
        System.out.println(remoteAddr);
    }
}