http.Headers["apiname"] = ApiId; 请求的头部信息加在哪

在Java中，你可以使用`connection.setRequestProperty()`方法来设置请求头部信息。示例如下：

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) {
        String url = "http://example.com";
        String apiName = "apiname";
        String apiId = "yourApiId";

        try {
            URL urlObj = new URL(url);
            HttpURLConnection connection = (HttpURLConnection) urlObj.openConnection();
            connection.setRequestMethod("GET");

            // 设置请求头部信息
            connection.setRequestProperty(apiName, apiId);

            int responseCode = connection.getResponseCode();
            if (responseCode == HttpURLConnection.HTTP_OK) {
                BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                String line;
                StringBuilder response = new StringBuilder();

                while ((line = reader.readLine()) != null) {
                    response.append(line);
                }
                reader.close();

                System.out.println(response.toString());
            } else {
                System.out.println("HTTP request failed. Response Code: " + responseCode);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

在上述示例中，我们使用`connection.setRequestProperty(apiName, apiId)`来设置请求头部信息，其中`apiName`是头部的名称，`apiId`是头部的值。你可以根据需要添加更多的请求头部信息，或者根据具体的需求进行修改和扩展。