在Java中，配置HTTP參數通常涉及到兩個方面：設置請求頭（Headers）和設置請求體（Body）。這里我將分別介紹如何配置這些參數。

1. 設置請求頭（Headers）：

在Java中，可以使用HttpURLConnection類或HttpClient類來發送HTTP請求。以下是使用HttpURLConnection類設置請求頭的示例：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("https://example.com");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            // 設置請求方法
            connection.setRequestMethod("GET");

            // 設置請求頭
            connection.setRequestProperty("User-Agent", "Mozilla/5.0");
            connection.setRequestProperty("Accept", "application/json");
            connection.setRequestProperty("Content-Type", "application/json;charset=UTF-8");

            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);

            if (responseCode == HttpURLConnection.HTTP_OK) {
                BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                String inputLine;
                StringBuilder response = new StringBuilder();

                while ((inputLine = in.readLine()) != null) {
                    response.append(inputLine);
                }
                in.close();

                System.out.println("Response: " + response.toString());
            } else {
                System.out.println("GET request failed");
            }

            connection.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

2. 設置請求體（Body）：

在Java中，可以使用HttpURLConnection類或HttpClient類來發送HTTP請求。以下是使用HttpURLConnection類設置請求體的示例：

import java.io.OutputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("https://example.com/api");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            // 設置請求方法
            connection.setRequestMethod("POST");

            // 設置請求頭
            connection.setRequestProperty("Content-Type", "application/json;charset=UTF-8");

            // 啟用輸出
            connection.setDoOutput(true);

            // 設置請求體
            String requestBody = "{\"key\":\"value\"}";
            OutputStream outputStream = connection.getOutputStream();
            outputStream.write(requestBody.getBytes());
            outputStream.flush();
            outputStream.close();

            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);

            if (responseCode == HttpURLConnection.HTTP_OK) {
                BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                String inputLine;
                StringBuilder response = new StringBuilder();

                while ((inputLine = in.readLine()) != null) {
                    response.append(inputLine);
                }
                in.close();

                System.out.println("Response: " + response.toString());
            } else {
                System.out.println("POST request failed");
            }

            connection.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

在這個示例中，我們使用HttpURLConnection類發送了一個POST請求，并在請求體中包含了一個JSON對象。請注意，你需要根據實際情況修改URL、請求方法和請求體。