Basically I'm just trying to create a simple HTML page that can send a string of text to the server. The server runs on some port on the localhost and receives that string.
I've found code for a simple server that can handle POST requests:
public static void main(String args[]) throws Exception
{
ServerSocket s = new ServerSocket(8080);
while (true) {
Socket remote = s.accept();
System.out.println("Connected");
BufferedReader in = new BufferedReader(new InputStreamReader(remote.getInputStream()));
PrintWriter out = new PrintWriter(remote.getOutputStream());
String str = ".";
while (!str.equals("")) {
str = in.readLine();
if (str.contains("GET")) {
break;
}
}
System.out.println(str);
out.println("HTTP/1.0 200 OK");
out.println("Content-Type: text/html");
out.println("Access-Control-Allow-Origin: null");
out.println("");
out.flush();
}
}
But I don't know what should I do further. I've learned that I need to use a XMLHttpRequest
that can send asynchronous requests:
function sendData(data) {
var XHR = new XMLHttpRequest();
var urlEncodedData = "message";
var urlEncodedDataPairs = [];
var name;
for (name in data) {
urlEncodedDataPairs.push(encodeURIComponent(name) + '=' + encodeURIComponent(data[name]));
}
urlEncodedData = urlEncodedDataPairs.join('&').replace(/%20/g, '+');
XHR.open('POST', 'http://localhost:8080', true);
XHR.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
XHR.send(urlEncodedData);
}
So, I'm starting my server, opening the .html file with JS script, and the script connects to the server. How then can I handle the message that the script sends? How can I decode and print it? And, eventually, do I write the message sender in a right way?
If you're simply trying to hit the endpoint you created for testing & continuing to build, try using Postman. You should be able to write a custom body for your POST request.