今日头条去水印解析

import java.io.*;
import java.net.*;
import java.util.HashMap;
import java.util.Map;

public class ApiClient {
    private static final String API_URL = "https://api.bugpk.com/api/toutiao";
    private static final String METHOD = "GET/POST";
    
    public static void main(String[] args) {
        try {
            // 准备请求参数
            Map params = new HashMap<>();
            params.put("key1", "value1");
            params.put("key2", "value2");
            // 根据实际参数添加
            
            String response = callApi(API_URL, METHOD, params);
            System.out.println("响应结果: " + response);
        } catch (Exception e) {
            System.err.println("请求失败: " + e.getMessage());
        }
    }
    
    public static String callApi(String url, String method, Map params) throws IOException {
        HttpURLConnection connection = null;
        
        try {
            if (method.equals("GET")) {
                // GET 请求
                String queryString = buildQueryString(params);
                String fullUrl = url + "?" + queryString;
                
                URL apiUrl = new URL(fullUrl);
                connection = (HttpURLConnection) apiUrl.openConnection();
                connection.setRequestMethod("GET");
            } else {
                // POST/PUT/DELETE 请求
                URL apiUrl = new URL(url);
                connection = (HttpURLConnection) apiUrl.openConnection();
                connection.setRequestMethod(method);
                connection.setDoOutput(true);
                
                // 设置请求体
                String requestBody = buildJsonBody(params);
                try (OutputStream os = connection.getOutputStream()) {
                    byte[] input = requestBody.getBytes("utf-8");
                    os.write(input, 0, input.length);
                }
            }
            
            // 设置请求头
            connection.setRequestProperty("Content-Type", "application/json");
            connection.setRequestProperty("User-Agent", "API-Client/1.0");
            connection.setConnectTimeout(30000);
            connection.setReadTimeout(30000);
            
            // 获取响应
            int status = connection.getResponseCode();
            
            StringBuilder response = new StringBuilder();
            try (BufferedReader br = new BufferedReader(
                new InputStreamReader(connection.getInputStream(), "utf-8"))) {
                String responseLine;
                while ((responseLine = br.readLine()) != null) {
                    response.append(responseLine.trim());
                }
            }
            
            if (status != 200) {
                throw new IOException("HTTP 错误代码: " + status);
            }
            
            return response.toString();
            
        } finally {
            if (connection != null) {
                connection.disconnect();
            }
        }
    }
    
    private static String buildQueryString(Map params) throws UnsupportedEncodingException {
        StringBuilder result = new StringBuilder();
        for (Map.Entry entry : params.entrySet()) {
            if (result.length() > 0) {
                result.append("&");
            }
            result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
            result.append("=");
            result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
        }
        return result.toString();
    }
    
    private static String buildJsonBody(Map params) {
        StringBuilder json = new StringBuilder();
        json.append("{");
        boolean first = true;
        for (Map.Entry entry : params.entrySet()) {
            if (!first) {
                json.append(",");
            }
            json.append("\"").append(entry.getKey()).append("\":\"").append(entry.getValue()).append("\"");
            first = false;
        }
        json.append("}");
        return json.toString();
    }
}