?? webserver.java
字號:
import java.io.*;
import java.net.*;
import java.util.*;
class WebServer
{
public static void main(String argv[])throws Exception
{
String requestMessageLine;
String fileName;
ServerSocket listenSocket = new ServerSocket(8080);
Socket connectionSocket = listenSocket.accept();
BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
DataOutputStream OutToClient = new DataOutputStream(connectionSocket.getOutputStream());
requestMessageLine = inFromClient.readLine();
StringTokenizer tokenizedLine = new StringTokenizer(requestMessageLine);
if(tokenizedLine.nextToken().equals("GET"))
{
fileName = tokenizedLine.nextToken();
if(fileName.startsWith("/") == true)
{
fileName = fileName.substring(1);
}
File file = new File(fileName);
int numOfBytes = (int)file.length();
FileInputStream inFile = new FileInputStream(fileName);
byte[] fileInBytes = new byte[numOfBytes];
inFile.read(fileInBytes);
OutToClient.writeBytes("HTTP/1.0 200 Document Follows\r\n");
if(fileName.endsWith(".jpg"))
{
OutToClient.writeBytes("Content-Type:image/jpeg\r\n");
}
if(fileName.endsWith(".gif"))
{
OutToClient.writeBytes("Content-Type:image/gif\r\n");
}
OutToClient.writeBytes("Content-Length:"+numOfBytes+"\r\n");
OutToClient.writeBytes("\r\n");
OutToClient.write(fileInBytes,0,numOfBytes);
connectionSocket.close();
}
else
System.out.println("Bad Request Messages");
}
}
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