Der Android-Webserver zeigt HTML-Seiten als Text an
Ich entwickle eine Android-App, die das Android-Gerät in einen Multithread-Webserver verwandelt. Der von mir verwendete Code ist fehlerfrei und funktioniert einwandfrei. Er kann im Webbrowser angezeigt werden, zeigt jedoch die Quelle der HTML-Datei als Text und nicht als Volltext an gui.
das ist mein Code ..
Jhtts Klasse:
package dolphin.developers.com;
import java.io.File;
import java.io.IOException;
import java.net.InetAddress;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.widget.Toast;
import dolphin.devlopers.com.R;
public class JHTTS extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.server);
try {
String IndexFileName = "index.htm";
File documentRootDirectory = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/");
JHTTP j = new JHTTP(documentRootDirectory, 9001, IndexFileName);
j.start();
Toast.makeText(getApplicationContext(), "Server Started!!", 5).show();
Log.d("Server Rooot", "" + documentRootDirectory);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Jhttp-Klasse:
package dolphin.developers.com;
import java.io.File;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
public class JHTTP extends Thread {
private File documentRootDirectory;
private String indexFileName = "index.htm";
private ServerSocket server;
private int numThreads = 50;
public JHTTP(File documentRootDirectory, int port, String indexFileName) throws IOException {
if (!documentRootDirectory.isDirectory()) {
throw new IOException(documentRootDirectory
+ " does not exist as a directory");
}
this.documentRootDirectory = documentRootDirectory;
this.indexFileName = indexFileName;
this.server = new ServerSocket(port);
}
public JHTTP(File documentRootDirectory, int port) throws IOException {
this(documentRootDirectory, port, "index.htm");
}
public JHTTP(File documentRootDirectory) throws IOException {
this(documentRootDirectory, 9001, "index.htm");
}
public void run() {
for (int i = 0; i < numThreads; i++) {
Thread t = new Thread(new RequestProcessor(documentRootDirectory, indexFileName));
t.start();
}
System.out.println("Accepting connections on port " + server.getLocalPort());
System.out.println("Document Root: " + documentRootDirectory);
while (true) {
try {
Socket request = server.accept();
request.setReuseAddress(true);
RequestProcessor.processRequest(request);
} catch (SocketException ex) {
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
RequestProcessor:
package dolphin.developers.com;
import java.net.*;
import java.io.*;
import java.util.*;
public class RequestProcessor implements Runnable {
@SuppressWarnings("rawtypes")
private static List pool = new LinkedList( );
private File documentRootDirectory;
private String indexFileName = "index.html";
public RequestProcessor(File documentRootDirectory,
String indexFileName) {
if (documentRootDirectory.isFile( )) {
throw new IllegalArgumentException(
"documentRootDirectory must be a directory, not a file");
}
this.documentRootDirectory = documentRootDirectory;
try {
this.documentRootDirectory
= documentRootDirectory.getCanonicalFile( );
}
catch (IOException ex) {
}
if (indexFileName != null) this.indexFileName = indexFileName;
}
@SuppressWarnings("unchecked")
public static void processRequest(Socket request) {
synchronized (pool) {
pool.add(pool.size( ), request);
pool.notifyAll( );
}
}
public void run( ) {
// for security checks
String root = documentRootDirectory.getPath( );
while (true) {
Socket connection;
synchronized (pool) {
while (pool.isEmpty( )) {
try {
pool.wait( );
}
catch (InterruptedException ex) {
}
}
connection = (Socket) pool.remove(0);
}
try {
String filename;
String contentType;
OutputStream raw = new BufferedOutputStream(
connection.getOutputStream( )
);
Writer out = new OutputStreamWriter(raw);
Reader in = new InputStreamReader(
new BufferedInputStream(
connection.getInputStream( )
),"ASCII"
);
StringBuffer requestLine = new StringBuffer( );
int c;
while (true) {
c = in.read( );
if (c == '\r' || c == '\n') break;
requestLine.append((char) c);
}
String get = requestLine.toString( );
// log the request
System.out.println(get);
StringTokenizer st = new StringTokenizer(get);
String method = st.nextToken( );
String version = "";
if (method.equals("GET")) {
filename = st.nextToken( );
if (filename.endsWith("/")) filename += indexFileName;
contentType = guessContentTypeFromName(filename);
if (st.hasMoreTokens( )) {
version = st.nextToken( );
}
File theFile = new File(documentRootDirectory,
filename.substring(1,filename.length( )));
if (theFile.canRead( )
// Don't let clients outside the document root
&& theFile.getCanonicalPath( ).startsWith(root)) {
DataInputStream fis = new DataInputStream(
new BufferedInputStream(
new FileInputStream(theFile)
)
);
byte[] theData = new byte[(int) theFile.length( )];
fis.readFully(theData);
fis.close( );
if (version.startsWith("HTTP ")) { // send a MIME header
out.write("HTTP/1.0 200 OK\r\n");
Date now = new Date( );
out.write("Date: " + now + "\r\n");
out.write("Server: JHTTP/1.0\r\n");
out.write("Content-length: " + theData.length + "\r\n");
out.write("Content-type: " + contentType + "\r\n\r\n");
out.flush( );
} // end if
// send the file; it may be an image or other binary data
// so use the underlying output stream
// instead of the writer
raw.write(theData);
raw.flush( );
} // end if
else { // can't find the file
if (version.startsWith("HTTP ")) { // send a MIME header
out.write("HTTP/1.0 404 File Not Found\r\n");
Date now = new Date( );
out.write("Date: " + now + "\r\n");
out.write("Server: JHTTP/1.0\r\n");
out.write("Content-type: text/html\r\n\r\n");
}
out.write("<HTML>\r\n");
out.write("<HEAD><TITLE>File Not Found</TITLE>\r\n");
out.write("</HEAD>\r\n");
out.write("<BODY>");
out.write("<H1>HTTP Error 404: File Not Found</H1>\r\n");
out.write("</BODY></HTML>\r\n");
out.flush( );
}
}
else { // method does not equal "GET"
if (version.startsWith("HTTP ")) { // send a MIME header
out.write("HTTP/1.0 501 Not Implemented\r\n");
Date now = new Date( );
out.write("Date: " + now + "\r\n");
out.write("Server: JHTTP 1.0\r\n");
out.write("Content-type: text/html\r\n\r\n");
}
out.write("<HTML>\r\n");
out.write("<HEAD><TITLE>Not Implemented</TITLE>\r\n");
out.write("</HEAD>\r\n");
out.write("<BODY>");
out.write("<H1>HTTP Error 501: Not Implemented</H1>\r\n");
out.write("</BODY></HTML>\r\n");
out.flush( );
}
}
catch (IOException ex) {
}
finally {
try {
connection.close( );
}
catch (IOException ex) {}
}
} // end while
} // end run
public static String guessContentTypeFromName(String name) {
if (name.endsWith(".html") || name.endsWith(".htm")) {
return "text/html";
}
else if (name.endsWith(".txt") || name.endsWith(".java")) {
return "text/plain";
}
else if (name.endsWith(".gif")) {
return "image/gif";
}
else if (name.endsWith(".class")) {
return "application/octet-stream";
}
else if (name.endsWith(".jpg") || name.endsWith(".jpeg")) {
return "image/jpeg";
}
else if (name.endsWith(".png") ) {
return "image/png";
}
else if (name.endsWith(".js")) {
return "text/javascript";
}
else if (name.endsWith(".js")) {
return "text/javascript";
}
else if (name.endsWith(".css")) {
return "text/css";
}
else return "text/plain";
}
} // end RequestProcessor
Bitte helfen Sie ...