HttpServletRequest对象——获取请求行

一、获取请求行

1、请求信息

• 请求方式："+request.getMethod()
• 请求URL："+request.getRequestURL()
• 请求URL中附带的参数:"+request.getQueryString()
• 请求资源："+request.getRequestURI()

2、客户端信息

• 客户端主机名："+request.getRemoteHost()
• 客户端IP地址："+request.getRemoteAddr()
• 客户端的端口："+request.getRemotePort()

3、HTTP

• Http协议和版本："+request.getProtocol()

4、服务器信息

• 服务器的主机名："+request.getLocalName()
• 服务器的IP地址："+request.getLocalAddr()
• 服务器的端口："+request.getLocalPort()

5、 实例

package net.test.servlet;

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(name = "TestServlet",urlPatterns = "/test")
public class TestServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("接收到get请求");
        System.out.println("----------1、请求信息-------------------------");
        System.out.println("请求方式："+request.getMethod());
        System.out.println("请求URL："+request.getRequestURL());
        System.out.println("请求URL中附带的参数:"+request.getQueryString());
        System.out.println("请求资源："+request.getRequestURI());
        System.out.println("-----------2、客户端信息------------------------");
        System.out.println("客户端主机名："+request.getRemoteHost());
        System.out.println("客户端IP地址："+request.getRemoteAddr());
        System.out.println("客户端的端口："+request.getRemotePort());
        System.out.println("------------3、Http协议-----------------------");
        System.out.println("Http协议和版本："+request.getProtocol());
        System.out.println("------------4、服务器信息-----------------------");
        System.out.println("服务器的主机名："+request.getLocalName());
        System.out.println("服务器的IP地址："+request.getLocalAddr());
        System.out.println("服务器的端口："+request.getLocalPort());
    }
}

运行结果：