我正在用android创建套接字服务器。我的本地存储中有一个目录，其中有index.html和所有其他资源。我希望在启动套接字服务器然后从移动设备的浏览器调用localhost：时将其重定向到index.html。我的套接字正在运行。日志正在打印。问题是我不知道如何重定向到index.html。预先感谢。
下面是我的代码：
public class Server {
MainActivity activity;
ServerSocket serverSocket;
String message = "";
static final int socketServerPORT = 8080;
public Server(MainActivity activity) {
this.activity = activity;
Thread socketServerThread = new Thread(new SocketServerThread());
socketServerThread.start();
}
public int getPort() {
return socketServerPORT;
}
public void onDestroy() {
if (serverSocket != null) {
try {
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private class SocketServerThread extends Thread {
int count = 0;
@Override
public void run() {
try {
// create ServerSocket using specified port
serverSocket = new ServerSocket(socketServerPORT);
while (true) {
// block the call until connection is created and return
// Socket object
Socket socket = serverSocket.accept();
count++;
message += "#" + count + " from "
+ socket.getInetAddress() + ":"
+ socket.getPort() + "\n";
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
System.out.println("SocketServerThread.run i am running");
}
});
SocketServerReplyThread socketServerReplyThread =
new SocketServerReplyThread(socket, count);
socketServerReplyThread.run();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private class SocketServerReplyThread extends Thread {
private Socket hostThreadSocket;
int cnt;
SocketServerReplyThread(Socket socket, int c) {
hostThreadSocket = socket;
cnt = c;
}
@Override
public void run() {
OutputStream outputStream;
String msgReply = "Hello from Server, you are #" + cnt;
final String OUTPUT = "https://www.google.com";
final String OUTPUT_HEADERS = "HTTP/1.1 200 OK\r\n" +
"Content-Type: text/html; charset=UTF-8\r\n" +
"date: Fri, 25 Oct 2019 04:58:29 GMT"+
"Content-Length: ";
final String OUTPUT_END_OF_HEADERS = "\r\n\r\n";
try {
outputStream = hostThreadSocket.getOutputStream();
BufferedWriter out = new BufferedWriter(
new OutputStreamWriter(
new BufferedOutputStream(outputStream),"UTF-8" ));
out.write(OUTPUT_HEADERS + OUTPUT.length() + OUTPUT_END_OF_HEADERS + OUTPUT);
out.flush();
out.close();
return;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
message += "Something wrong! " + e.toString() + "\n";
}
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
System.out.println("Here is another message for you " + message);
}
});
}
}
public String getIpAddress() {
String ip = "";
try {
Enumeration<NetworkInterface> enumNetworkInterfaces = NetworkInterface
.getNetworkInterfaces();
while (enumNetworkInterfaces.hasMoreElements()) {
NetworkInterface networkInterface = enumNetworkInterfaces
.nextElement();
Enumeration<InetAddress> enumInetAddress = networkInterface
.getInetAddresses();
while (enumInetAddress.hasMoreElements()) {
InetAddress inetAddress = enumInetAddress
.nextElement();
if (inetAddress.isSiteLocalAddress()) {
ip += "Server running at : "
+ inetAddress.getHostAddress();
}
}
}
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
ip += "Something Wrong! " + e.toString() + "\n";
}
return ip;
}
}
最后我在这里找到了解决我问题的方法
static final File WEB_ROOT = new File("<your files path>");
static final String DEFAULT_FILE = "index.html";
static final String FILE_NOT_FOUND = "404.html";
static final String METHOD_NOT_SUPPORTED = "not_supported.html";
private class SocketServerThread extends Thread {
int count = 0;
@Override
public void run() {
try {
// create ServerSocket using specified port
serverSocket = new ServerSocket(socketServerPORT);
while (true) {
// block the call until connection is created and return
// Socket object
Socket socket = serverSocket.accept();
connect = socket;
count++;
message += "#" + count + " from "
+ socket.getInetAddress() + ":"
+ socket.getPort() + "\n";
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
System.out.println("SocketServerThread.run i am running");
}
});
JavaHTTPServer.SocketServerReplyThread socketServerReplyThread =
new JavaHTTPServer.SocketServerReplyThread(socket, count);
socketServerReplyThread.run();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private class SocketServerReplyThread extends Thread {
private Socket hostThreadSocket;
int cnt;
SocketServerReplyThread(Socket socket, int c) {
hostThreadSocket = socket;
cnt = c;
}
@Override
public void run() {// we manage our particular client connection
BufferedReader in = null;
PrintWriter out = null;
BufferedOutputStream dataOut = null;
String fileRequested = null;
try {
// we read characters from the client via input stream on the socket
in = new BufferedReader(new InputStreamReader(connect.getInputStream()));
// we get character output stream to client (for headers)
out = new PrintWriter(connect.getOutputStream());
// get binary output stream to client (for requested data)
dataOut = new BufferedOutputStream(connect.getOutputStream());
// get first line of the request from the client
String input = in.readLine();
System.out.println("SocketServerReplyThread.run input " + input);
// we parse the request with a string tokenizer
if (input == null)
return;
StringTokenizer parse = new StringTokenizer(input);
System.out.println("SocketServerReplyThread.run parse " + parse);
String method = parse.nextToken().toUpperCase(); // we get the HTTP method of the client
System.out.println("SocketServerReplyThread.run method " + method);
// we get file requested
fileRequested = parse.nextToken().toLowerCase();
if (fileRequested.contains("?"))
fileRequested = fileRequested.split("\\?")[0];
System.out.println("SocketServerReplyThread.run fileRequested " + fileRequested);
// we support only GET and HEAD methods, we check
if (!method.equals("GET") && !method.equals("HEAD")) {
if (verbose) {
System.out.println("501 Not Implemented : " + method + " method.");
}
// we return the not supported file to the client
File file = new File(WEB_ROOT, METHOD_NOT_SUPPORTED);
int fileLength = (int) file.length();
String contentMimeType = "text/html";
//read content to return to client
byte[] fileData = readFileData(file, fileLength);
// we send HTTP Headers with data to client
out.println("HTTP/1.1 501 Not Implemented");
out.println("Server: Java HTTP Server from SSaurel : 1.0");
out.println("Date: " + new Date());
out.println("Content-type: " + contentMimeType);
out.println("Content-length: " + fileLength);
out.println(); // blank line between headers and content, very important !
out.flush(); // flush character output stream buffer
// file
dataOut.write(fileData, 0, fileLength);
dataOut.flush();
} else {
// GET or HEAD method
if (fileRequested.endsWith("/")) {
fileRequested += DEFAULT_FILE;
}
File file = new File(WEB_ROOT, fileRequested);
int fileLength = (int) file.length();
String content = getContentType(fileRequested);
if (method.equals("GET")) { // GET method so we return content
byte[] fileData = readFileData(file, fileLength);
// send HTTP Headers
out.println("HTTP/1.1 200 OK");
out.println("Server: Java HTTP Server from SSaurel : 1.0");
out.println("Date: " + new Date());
out.println("Content-type: " + content);
out.println("Content-length: " + fileLength);
out.println(); // blank line between headers and content, very important !
out.flush(); // flush character output stream buffer
dataOut.write(fileData, 0, fileLength);
dataOut.flush();
}
if (verbose) {
System.out.println("File " + fileRequested + " of type " + content + " returned");
}
}
} catch (FileNotFoundException fnfe) {
try {
fileNotFound(out, dataOut, fileRequested);
} catch (IOException ioe) {
ioe.printStackTrace();
System.err.println("Error with file not found exception : " + ioe.getMessage());
}
} catch (IOException ioe) {
System.err.println("Server error : " + ioe);
} finally {
try {
in.close();
out.close();
dataOut.close();
connect.close(); // we close socket connection
} catch (Exception e) {
System.err.println("Error closing stream : " + e.getMessage());
}
if (verbose) {
System.out.println("Connection closed.\n");
}
}
}
}
private byte[] readFileData(File file, int fileLength) throws IOException {
FileInputStream fileIn = null;
byte[] fileData = new byte[fileLength];
try {
fileIn = new FileInputStream(file);
fileIn.read(fileData);
} finally {
if (fileIn != null)
fileIn.close();
}
return fileData;
}
// return supported MIME Types
private String getContentType(String fileRequested) {
if (fileRequested.endsWith(".htm") || fileRequested.endsWith(".html"))
return "text/html";
else
return "text/plain";
}
private void fileNotFound(PrintWriter out, OutputStream dataOut, String fileRequested) throws IOException {
File file = new File(WEB_ROOT, FILE_NOT_FOUND);
int fileLength = (int) file.length();
String content = "text/html";
byte[] fileData = readFileData(file, fileLength);
out.println("HTTP/1.1 404 File Not Found");
out.println("Server: Java HTTP Server from SSaurel : 1.0");
out.println("Date: " + new Date());
out.println("Content-type: " + content);
out.println("Content-length: " + fileLength);
out.println(); // blank line between headers and content, very important !
out.flush(); // flush character output stream buffer
dataOut.write(fileData, 0, fileLength);
dataOut.flush();
if (verbose) {
System.out.println("File " + fileRequested + " not found");
}
}