<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>Fetch Post</h1>
<hr>
<button onclick="f()">run</button>
<div id="demo"></div>
<script>
function f() {
const data = {
name : 'yeri',
batch : 1
};
fetch('FetchPost', {
method : 'POST',
body : JSON.stringify(data)
})
.then(resp => resp.json())
.then(value1 => document.getElementById("demo").innerHTML = value1.name + value1.batch)
}
</script>
</body>
</html>package servlets;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONObject;
@WebServlet("/FetchPost")
public class FetchPost extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
BufferedReader br = request.getReader();
String data = br.readLine();
JSONObject obj = new JSONObject(data);
PrintWriter out = response.getWriter();
out.print(obj);
}
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