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package com.liu;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
public class WebServer {
public void serverStart(int port) {
try {
ServerSocket serverSocket = new ServerSocket(port);
while (true) {
Socket socket = serverSocket.accept();
new Processor(socket).start();
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
int port = 8045;
if (args.length == 1) {
port = Integer.parseInt(args[0]);
}
new WebServer().serverStart(port);
}
}
package com.liu;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;
public class Processor extends Thread {
private Socket socket;
private InputStream in;
private PrintStream out;
public final static String WEB_ROOT="D:\\MyEplice";
public Processor(Socket socket){
this.socket=socket;
try{
in=socket.getInputStream();
out=new PrintStream(socket.getOutputStream());
}catch (IOException e){
e.printStackTrace();
}
}
public void run(){
String FileName=parse(in);
SendFile(FileName);
}
public String parse(InputStream in){
BufferedReader br=new BufferedReader(new InputStreamReader(in));
String FileName=null;
try{
String HttpMessage=br.readLine();
String[] content=HttpMessage.split(" ");
System.out.println("code"+content[0]+"filename"+content[1]+"Http version:"+content[2]);
FileName=content[1];
if(content.length!=3){
this.SendErrorMessage(400,"Client Query Error");
return null;
}
} catch(IOException e){
e.printStackTrace();
}
return FileName;
}
public void SendErrorMessage(int ErrorCode,String ErrorMessage){
out.println("HTTP/1.0"+ErrorCode+" "+ErrorMessage);
out.println("content-type: text/html");
out.println();
out.println("<html>");
out.println("<title>ErrorMessage");
out.println("</title>");
out.println("<body>");
out.println("<b1>ErrorCOde:"+ErrorCode+",Message:"+ErrorMessage+"</b1>");
out.println("</body>");
out.println("</html>");
out.flush();
out.close();
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void SendFile(String FileName){
File file=new File(Processor.WEB_ROOT+FileName);
if (!file.exists()){
SendErrorMessage(404,"File Not Found");
return;
}
try{
InputStream in = new FileInputStream(file);
byte content[]=new byte[(int)file.length()];
in.read(content);
out.println("HTTP/1.0 200 QueryFile");
out.println("content-length:"+content.length);
out.println();
out.write(content);
out.flush();
out.close();
in.close();
}catch (FileNotFoundException e){
e.printStackTrace();
}catch (IOException e){
e.printStackTrace();
}
}
}