HttpServletRequest getXXX 获取协议 服务器名称端口号 项目名称 servlet路径

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工程目录结构



web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">

<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>jizuiku.web.servlet.MyServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>MyServlet</servlet-name>
<url-pattern>/MyServlet</url-pattern>
</servlet-mapping>

</web-app>

Servlet类代码

package jizuiku.web.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* HttpServletRequest getXXXX
*
* @author 给最苦
* @version V17.10.25
*/
public class MyServlet extends HttpServlet {

/**
*
*/
private static final long serialVersionUID = 1L;

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

String schema = request.getScheme();
String serverName = request.getServerName();
// 端口号返回的是int类型
int serverPort = request.getServerPort();
String contentPath = request.getContextPath();
String servletPath = request.getServletPath();

System.out.println("协议:" + schema);
System.out.println("服务器名称:" + serverName);
System.out.println("服务器端口号:" + serverPort);
System.out.println("项目名称:" + contentPath);
System.out.println("servlet路径:" + servletPath);

}

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub

}

}

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学习资源：itcast和itheima视频库。如果您有公开的资源，可以分享给我的话，用您的资源学习也可以。
博文是观看视频后，融入思考写成的。博文好，是老师讲得好。博文坏，是 给最苦 没认真。