如何在java httpserver服务器中处理表单数据？

HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);

server.createContext("/", new MyHandler());

@Override
public void handle(HttpExchange exchange) throws IOException {
    if (exchange.getRequestMethod().equalsIgnoreCase("POST")) {
        InputStreamReader isr = new InputStreamReader(exchange.getRequestBody(), "UTF-8");
        BufferedReader br = new BufferedReader(isr);
        String formData = br.readLine();
        // 解析表单数据
        Map<String, String> params = parseFormData(formData);
        // 处理表单数据
        processFormData(params);
    }
}

private Map<String, String> parseFormData(String formData) throws UnsupportedEncodingException {
    Map<String, String> params = new HashMap<>();
    String[] pairs = formData.split("&");
    for (String pair : pairs) {
        String[] keyValue = pair.split("=");
        String key = URLDecoder.decode(keyValue[0], "UTF-8");
        String value = URLDecoder.decode(keyValue[1], "UTF-8");
        params.put(key, value);
    }
    return params;
}