封装一个只传接口地址、请求参数、请求类型的第三方调用代码

好的，以下是一个简单的Java封装第三方接口的类，只需要传入接口地址、请求参数和请求类型：

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

public class ThirdPartyAPI {
    public static String callAPI(String endpoint, Map<String, String> params, String requestMethod) {
        try {
            StringBuilder urlBuilder = new StringBuilder(endpoint);
            if (params != null && !params.isEmpty()) {
                urlBuilder.append("?");

                for (Map.Entry<String, String> entry : params.entrySet()) {
                    urlBuilder.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
                }

                urlBuilder.deleteCharAt(urlBuilder.length() - 1);
            }

            URL url = new URL(urlBuilder.toString());
            HttpURLConnection connection = (HttpURLConnection)url.openConnection();
            connection.setRequestMethod(requestMethod);

            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;

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

            reader.close();
            connection.disconnect();

            return response.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
    }
}

注意这里的 `params` 参数是一个 `Map<String, String>` 类型，以键值对的形式传入请求参数。然后，你可以通过调用 `ThirdPartyAPI.callAPI("endpoint", params, "GET")` 或 `ThirdPartyAPI.callAPI("endpoint", params, "POST")` 等方式来调用第三方接口。