是这样的，我做了一个小的webserver，处理基本的httprequest
这个是httprequest
import java.io.* ;
import java.net.* ;
import java.util.* ;final class HttpRequest implements Runnable {
final static String CRLF = "\r\n";
Socket socket;
Thread thread;
// Constructor
public HttpRequest(Socket socket) throws Exception {
this.socket = socket;
}
// Implement the run() method of the Runnable interface.
public void run() {
System.out.println("****"+thread.currentThread().getName()+"****");
try {
HttpRequest request=new HttpRequest(socket);
request.processRequest();
thread.sleep(3000);
} catch (Exception e) {
System.out.println(e);
}
System.out.println("****"+thread.currentThread().getName()+" finish****\n");
} private void processRequest() throws Exception {
// Get a reference to the socket's input and output streams.
InputStream is = socket.getInputStream();
DataOutputStream os = new DataOutputStream(socket.getOutputStream());
// Set up input stream filters.
BufferedReader br = new BufferedReader(new InputStreamReader(is)); // Get the request line of the HTTP request message.
String requestLine = br.readLine(); // Extract the filename from the request line.
StringTokenizer tokens = new StringTokenizer(requestLine);
tokens.nextToken(); // skip over the method, which should be "GET"
String fileName = tokens.nextToken();
// Prepend a "." so that file request is within the current directory.
fileName = "." + fileName ;
// Open the requested file.
FileInputStream fis = null ;
boolean fileExists = true ;
try {
fis = new FileInputStream(fileName);
} catch (FileNotFoundException e) {
fileExists = false ;
} // Debug info for private use
System.out.println("Incoming!!!");
System.out.println(requestLine);
String headerLine = null;
while ((headerLine = br.readLine()).length() != 0) {
System.out.println(headerLine);
}
// Construct the response message.
String statusLine = null;
String contentTypeLine = null;
String entityBody = null;
if (fileExists) {
//改动
statusLine = "HTTP/1.1 200 OK";
contentTypeLine = "Content-Type: " +
contentType(fileName) + CRLF;
} else {
//改动
statusLine = "HTTP/1.1 404 Not Found";
contentTypeLine = "Content-Type: " +
contentType(fileName) + CRLF;
entityBody = "<HTML>" +
"<HEAD><TITLE>Not Found</TITLE></HEAD>" +
"<BODY>Not Found</BODY></HTML>";
}
// Send the status line.
os.writeBytes(statusLine); // Send the content type line.
os.writeBytes(contentTypeLine); // Send a blank line to indicate the end of the header lines.
os.writeBytes(""+'\n'); // Send the entity body.
if (fileExists) {
sendBytes(fis, os);
fis.close();
} else {
os.writeBytes(entityBody) ;
} // Close streams and socket.
os.close();
br.close();
socket.close();
} private static void sendBytes(FileInputStream fis,
OutputStream os) throws Exception {
// Construct a 1K buffer to hold bytes on their way to the socket.
byte[] buffer = new byte[1024];
int bytes = 0;
// Copy requested file into the socket's output stream.
while ((bytes = fis.read(buffer)) != -1) {
os.write(buffer, 0, bytes);
}
} private static String contentType(String fileName) {
if(fileName.endsWith(".htm") || fileName.endsWith(".html")) {
return "text/html";
}
if(fileName.endsWith(".jpg") || fileName.endsWith(".jpeg") || fileName.endsWith(".jpe")) {
return "image/jpeg";
} return "application/octet-stream" ;
}
}这个是serverimport java.io.* ;
import java.net.* ;
import java.util.* ;public final class WebServer { public static void main(String argv[]) throws Exception {
// Get the port number from the command line.
int port = (new Integer(argv[0])).intValue();
// Establish the listen socket.
ServerSocket welcomeSocket = new ServerSocket(port);
// Process HTTP service requests in an infinite loop.
while (true) {
// Listen for a TCP connection request.
Socket connectionSocket=welcomeSocket.accept();
// Construct an object to process the HTTP request message.
HttpRequest request = new HttpRequest(connectionSocket);
// Create a new thread to process the request.
Thread thread = new Thread(request);
// Start the thread.
thread.start();
}
}
}然后我做了一个GUI，希望能把cmd中显示的内容显示在一个textarea中，想了大半天也没想出来，希望大家可以帮个忙
这个是httprequest
import java.io.* ;
import java.net.* ;
import java.util.* ;final class HttpRequest implements Runnable {
final static String CRLF = "\r\n";
Socket socket;
Thread thread;
// Constructor
public HttpRequest(Socket socket) throws Exception {
this.socket = socket;
}
// Implement the run() method of the Runnable interface.
public void run() {
System.out.println("****"+thread.currentThread().getName()+"****");
try {
HttpRequest request=new HttpRequest(socket);
request.processRequest();
thread.sleep(3000);
} catch (Exception e) {
System.out.println(e);
}
System.out.println("****"+thread.currentThread().getName()+" finish****\n");
} private void processRequest() throws Exception {
// Get a reference to the socket's input and output streams.
InputStream is = socket.getInputStream();
DataOutputStream os = new DataOutputStream(socket.getOutputStream());
// Set up input stream filters.
BufferedReader br = new BufferedReader(new InputStreamReader(is)); // Get the request line of the HTTP request message.
String requestLine = br.readLine(); // Extract the filename from the request line.
StringTokenizer tokens = new StringTokenizer(requestLine);
tokens.nextToken(); // skip over the method, which should be "GET"
String fileName = tokens.nextToken();
// Prepend a "." so that file request is within the current directory.
fileName = "." + fileName ;
// Open the requested file.
FileInputStream fis = null ;
boolean fileExists = true ;
try {
fis = new FileInputStream(fileName);
} catch (FileNotFoundException e) {
fileExists = false ;
} // Debug info for private use
System.out.println("Incoming!!!");
System.out.println(requestLine);
String headerLine = null;
while ((headerLine = br.readLine()).length() != 0) {
System.out.println(headerLine);
}
// Construct the response message.
String statusLine = null;
String contentTypeLine = null;
String entityBody = null;
if (fileExists) {
//改动
statusLine = "HTTP/1.1 200 OK";
contentTypeLine = "Content-Type: " +
contentType(fileName) + CRLF;
} else {
//改动
statusLine = "HTTP/1.1 404 Not Found";
contentTypeLine = "Content-Type: " +
contentType(fileName) + CRLF;
entityBody = "<HTML>" +
"<HEAD><TITLE>Not Found</TITLE></HEAD>" +
"<BODY>Not Found</BODY></HTML>";
}
// Send the status line.
os.writeBytes(statusLine); // Send the content type line.
os.writeBytes(contentTypeLine); // Send a blank line to indicate the end of the header lines.
os.writeBytes(""+'\n'); // Send the entity body.
if (fileExists) {
sendBytes(fis, os);
fis.close();
} else {
os.writeBytes(entityBody) ;
} // Close streams and socket.
os.close();
br.close();
socket.close();
} private static void sendBytes(FileInputStream fis,
OutputStream os) throws Exception {
// Construct a 1K buffer to hold bytes on their way to the socket.
byte[] buffer = new byte[1024];
int bytes = 0;
// Copy requested file into the socket's output stream.
while ((bytes = fis.read(buffer)) != -1) {
os.write(buffer, 0, bytes);
}
} private static String contentType(String fileName) {
if(fileName.endsWith(".htm") || fileName.endsWith(".html")) {
return "text/html";
}
if(fileName.endsWith(".jpg") || fileName.endsWith(".jpeg") || fileName.endsWith(".jpe")) {
return "image/jpeg";
} return "application/octet-stream" ;
}
}这个是serverimport java.io.* ;
import java.net.* ;
import java.util.* ;public final class WebServer { public static void main(String argv[]) throws Exception {
// Get the port number from the command line.
int port = (new Integer(argv[0])).intValue();
// Establish the listen socket.
ServerSocket welcomeSocket = new ServerSocket(port);
// Process HTTP service requests in an infinite loop.
while (true) {
// Listen for a TCP connection request.
Socket connectionSocket=welcomeSocket.accept();
// Construct an object to process the HTTP request message.
HttpRequest request = new HttpRequest(connectionSocket);
// Create a new thread to process the request.
Thread thread = new Thread(request);
// Start the thread.
thread.start();
}
}
}然后我做了一个GUI，希望能把cmd中显示的内容显示在一个textarea中，想了大半天也没想出来，希望大家可以帮个忙
jTextArea中