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I am sending a ajax request from a client such as:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script>
$(document).ready(function() {
$.ajax({
url: "http://192.168.1.74:8888",
type: "POST",
data: ({username: 'Bobby'})
});
})
</script>
</head>
<body>
</body>
</html>
My Http Server is written in Java utilizing vertx is like so:
public class Main extends AbstractVerticle {
@Override
public void start() throws Exception {
vertx.createHttpServer().requestHandler(new Handler<HttpServerRequest>() {
@Override
public void handle(HttpServerRequest request) {
System.out.println(request.getParam("username"));
}
}).listen(8888);
}
}
Every time I run the client, the server writes to console so the request is sent, but the server says the value is null. What am I doing wrong? How do I read the POST parameter being sent from the client?
UPDATE:
I found the problem, but no solution. If I change the ajax to GET from POST then it will appear. How do I make it so it works for POST and not for GET? SO the opposite of what is occurring now?
Cheers
280
I encountered the problem while working on my project. I was using Dojo on the client side. I manged to solve this by making adjustments both on the client side and the server side.
Client:
var json = JSON.stringify({
"username": "Bobby"
});
request.post("yoururl", {
data: json,
headers: {
"Content-Type": "application/javascript"
}
});
On the server side, apparently, what was required was calling the method BodyHandler.create() before handling the code.
router.route(HttpMethod.POST, "yoururl").handler(BodyHandler.create());
router.route(HttpMethod.POST, "yoururl").handler(routingContext ->
{
String sectionType = routingContext.request().getParam("sectionId");
JsonObject j = routingContext.getBodyAsJson();
});
I hope this would solved your problem.
66
When doing a POST request the data is in the body. On the server side you need to register a body handler for your router in order to be able to easily get the body from the request. You can do that like this:
final Router router = Router.router(vertex);
// Adding a BodyHandler for routes
router.route().handler(BodyHandler.create());
router.post("/your/endpoint").handler(routingContext -> {
System.out.println(routingContext.getBodyAsString());
});
Another option is to add another callback handler like this:
final Router router = Router.router(vertex);
router.post("/your/endpoint").handler(routingContext -> {
routingContext.request().bodyHandler(body -> {
System.out.println(body.toString());
});
});
answered Aug 10 '26 07:08
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