简单服务器开发(四)结合XML部署服务器端口号

日期工具类:

package com.zda.httpserver.util;
import
java.text.SimpleDateFormat; import java.util.Date; /** * 日期工具类 * @author zda * @version 1.0 * @since 1.0 * */ public class DateUtil { private static SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss SSS"); private DateUtil() { } /** * 获取系统当前时间 * @return String [yyyy-MM-dd HH:mm:ss SSS] */ public static String getCurrentTime() { return dateFormat.format(new Date()); } }

日志记录器:

package com.zda.httpserver.util;
import
java.text.SimpleDateFormat; import java.util.Date; /** * 日志记录器 * @author zda * @version 1.0 * @since 1.0 * */ public class Logger { //工具类的方法往往是静态的,不需要创建对象 //工具类的构造方法往往也是私有的,但不是必须的 private Logger() { } /** * 普通日志记录器 * @param msg */ public static void log(String msg) { //输出到控制台 System.out.println("[INFO]" + DateUtil.getCurrentTime() + msg); } }

xml文档

<!-- server.xml-->
<?xml version="1.0" encoding="UTF-8"?>
<server>
    <service>
        <connector port="8080"></connector>
    </service>
</server>

解析xml文档

package com.zda.httpserver.core;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.*;

/**
 * 解析conf文件夹中的server.xml文件
 * @author zda
 * @version 1.0
 * @since   1.0
 *
 */
public class ServerParser {
    /**
     * 获取服务器的端口号
     * @return int port
     */
    public static int getPort() {
        //设置服务器默认端口号:8080
        int port = 8080;
        try {
            //创建解析器
            SAXReader saxReader = new SAXReader();
            //通过解析器的read方法将配置文件读取到内存中,生成一个Document[org.dom4j]对象树
            Document document = saxReader.read("conf/server.xml");
            //获取connector节点元素的路径:server -> service -> connector
            //获取connector节点元素的xpath路径:/server/service/connector
            //获取connector节点元素的xpath路径:server//connector
            //获取connector节点元素的xpath路径://connector
            Element connectorElt = (Element) document.selectSingleNode("//connector");
            //获取port属性的值
            port = Integer.parseInt(connectorElt.attributeValue("port"));
            
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return port;
    }
}

程序入口:

package com.zda.httpserver.core;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

import com.zda.httpserver.util.Logger;

/**
 * httpserver主入口
 * @author zda
 * @version 1.0
 * @since   1.0
 *
 */
public class BootStrap {

    public static void main(String[] args) {
        // 程序入口
        start();
    }
    /**
     * 主程序入口
     */
    public static void start() {
        ServerSocket serverSocket = null;
        Socket clientSocket = null;
        BufferedReader br = null;
        try {
            Logger.log("httpserver start");
            //获取当前时间
            long start = System.currentTimeMillis();
            //获取系统端口号
            int port = ServerParser.getPort();
            Logger.log("httpserver-port: " + port);
            //创建服务器套接字,并且绑定端口号:8080
            serverSocket = new ServerSocket(port);
            //获取结束时间
            long end = System.currentTimeMillis();
            Logger.log("httpserver started: " + (end-start) + " ms");
            while(true){
                //开始监听网络,此时程序处于等待状态,等待接收客户端的消息
                clientSocket = serverSocket.accept();
                //接收客户端消息
                br = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
                String temp = null;
                while((temp = br.readLine()) != null){
                    System.out.println(temp);
                }
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            //关闭资源
            if(br != null){
                try {
                    br.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if(clientSocket != null){
                try {
                    clientSocket.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if(serverSocket != null){
                try {
                    serverSocket.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
    }

}

浏览器访问:

 http://localhost:8080/abc?username=123 &password=456

输出结果:

 

posted @ 2020-02-12 17:42  摘珰  阅读(296)  评论(0编辑  收藏  举报