多线程静态Web服务器开发小试（java）
克服内存溢出问题采用缓冲式输出
文件一：
package com.cn.lcl;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.URLDecoder;
public class HttpWebServerOfLcl {
private static int counter = 0;
public static void main(String[] args) {
WebServer();
}
public static void WebServer() {
int PORT = 8080;
ServerSocket server = null;
Socket client = null;
try {
server = new ServerSocket(PORT);
System.out.println("WEB服务器启动,访问端口号为：" + PORT);
while (true) {
client = server.accept();
counter++;
System.out.println("第" + counter + "个客户请求");
new CommunicationThread(client).start();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
client.close();
} catch (IOException e1) {
e1.printStackTrace();
}
try {
server.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
class CommunicationThread extends Thread {
Socket client = null;
public CommunicationThread(Socket client) {
this.client = client;
}
public void run() {
try {
String destIp = client.getInetAddress().toString();
String destPort = client.getPort() + "";
System.out.println("请求来源IP为：" + destIp + "----请求响应端口为：" + destPort);
BufferedReader reader = new BufferedReader(new InputStreamReader(
client.getInputStream()));
String inputLine = reader.readLine();
System.out.println("inputLine为：" + inputLine);
String resourceUrl = inputLine.substring(inputLine.indexOf('/') +
1, inputLine.lastIndexOf('/') - 5);
int i = 0;
while ((inputLine = reader.readLine()) != null) {
if (inputLine.equals("")) {
break;
}
i++;
System.out.println("第" + i + "行http头部信息为: " + inputLine);
}
resourceUrl = URLDecoder.decode(resourceUrl, "UTF-8");
System.out.println("请求资源为：" + resourceUrl);
File file = new File(resourceUrl);
PrintStream outstream = new PrintStream(client.getOutputStream());
if (file.exists() && !file.isDirectory()) {
System.out.println("文件存在");
outstream.println("HTTP/1.0 200 OK");
outstream.println("MIME_version:1.0");
outstream.println("Content_Type:text/html");
outstream.println("Content_Length:" + file.length());
outstream.println("");
transportFile(outstream, file);
outstream.flush();
} else {
String notFound = "<html><head><title>Not Found</title></head><body><h1>404 file not found</h1></body></html>";
outstream.println("HTTP/1.0 404 no found");
outstream.println("Content_Type:text/html");
outstream.println("Content_Length:" + notFound.length() + 2);
outstream.println("");
outstream.println(notFound);
outstream.flush();
}
// outstream.close();
long b = 1;
while (b < 3600000) {
b++;
}
reader.close();
client.close();
} catch (Exception e) {
//System.out.println("run方法内出错：" + e.getMessage());
} finally {
/*
* try { //client.close(); System.out.println("本次请求成功关闭！"); } catch
* (IOException e) { e.printStackTrace(); }
*/
}
}
public void transportFile(PrintStream ps, File file) {
try {
DataInputStream in = new DataInputStream(new FileInputStream(file));
byte[] temp = new byte[10240];
int a = 0;
while ((a = in.read(temp, 0, 10240)) != -1) {
ps.write(temp);
ps.flush();
}
in.close();
} catch (IOException e) {
System.out.println("文件传输中出错,错误信息为：" + e.getMessage());
} finally {
ps.close();
System.out.println("传输完毕");
}
}
}
文件二：index.html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>我的JAVA WEB服务器</title>
</head>
<body>
<center>
<h1> Hello ,DaXiongJie!This is WuYou ! </h1>
<h1> 祝愿2017年 </h1>
<hr />
<form action="/index.html">
<img alt="" src="test.jpg" />
<br />
<br />
<br />
<video width="800" height="600" controls="controls">
<source src="半妖倾城.mp4" type="video/mp4"></source> 您的浏览器不支持此种视频格式。
</video>
</form>
</center>
</body>
</html>
