java https get请求头设置

以下是Java中使用HttpsURLConnection发送GET请求并设置请求头的示例代码：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import javax.net.ssl.HttpsURLConnection;

public class HttpsGetRequest {
    public static void main(String[] args) {
        try {
            String url = "https://example.com";
            URL obj = new URL(url);
            HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();

            // 设置请求头
            con.setRequestMethod("GET");
            con.setRequestProperty("User-Agent", "Mozilla/5.0");

            BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
            String inputLine;
            StringBuffer response = new StringBuffer();

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

            // 打印响应结果
            System.out.println(response.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}