This example uses an HTML form to create a POST request containing the user’s name.
index.html contains an HTML form:
<!DOCTYPE html>
<html>
<head>
<title>Name Form</title>
</head>
<body>
<h1>What's your name?</h1>
<form action="/post-name/hello" method="POST">
<input type="text" name="name" value="Ada">
<br><br>
<input type="submit" value="Submit">
</form>
</body>
</html>
GreetingServlet.java handles the POST
request by outputting the user’s name to the response:
package io.happycoding.servlets;
import java.io.IOException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
@WebServlet("/hello")
public class GreetingServlet extends HttpServlet {
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException {
String name = request.getParameter("name");
response.getWriter().println("<h1>Hello " + name + "!</h1>");
}
}
Use POST requests to get the user's name.
Happy Coding is a community of folks just like you learning about coding.
Do you have a comment or question? Post it here!
Comments are powered by the Happy Coding forum. This page has a corresponding forum post, and replies to that post show up as comments here. Click the button above to go to the forum to post a comment!