之前调用过的DOTA联赛数据 [https://www.feijing88.com/esport]

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Iterator;
import java.util.Date;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Locale;

// 在线接口文档: https://www.feijing88.com/doc/esport

public class ESportDemo {

// 定义请求数据API接口参数
private static final String accessKey = "JibasdasdQW3t4ancdsaEh6upUlIcboZ8Euq";    // 【替换成自己的access key】
private static final String secretKey = "cbfWCLgzzxcxaEmSqvckFoO676UHDse";    // 【替换成自己的secret key】
private static final String baseUrl = "esportsapi.feijing88.com";  // 【替换成请求对应数据的api接口地址】
private static String path = " /data-service/dota/league/list?offset=0&limit=10";                              // api path 例如：/data-service/lol/raw/hero
private static String apiTime = System.currentTimeMillis();                           // api 请求时间戳

public static void main(String[] args) {
  // 初始化请求接口参数
  apiTime = getNowTime();
  String url = baseUrl + path;

  // 调用电竞数据 API 接口获取格式为 JSON 字符串
  String charset = "UTF-8";
  String jsonResult = get(url, charset);
  // 打印请求结果
  System.out.println(jsonResult);
}

/**
 * @param url:请求接口
 * @param charset:字符编码
 * @return 返回json字符串
 */
public static String get(String url, String charset) {
  BufferedReader reader = null;
  String result = null;
  StringBuffer sbf = new StringBuffer();
  String userAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";

  try {
    URL newUrl = new URL(url);
    HttpURLConnection connection = (HttpURLConnection)newUrl.openConnection();
    connection.setRequestMethod("GET");
    connection.setReadTimeout(30000);
    connection.setConnectTimeout(30000);
    connection.setRequestProperty("User-agent", userAgent);
    // 设置请求头
    connection.setRequestProperty("Content-Type", "application/json;charset=utf-8");
    connection.setRequestProperty("Accept-ApiAccess", accessKey);
    connection.setRequestProperty("Accept-ClientTime", apiTime);
    connection.setRequestProperty("Accept-ApiSign", getSign());

    System.out.println(getSign());

    InputStream is = connection.getInputStream();
    reader = new BufferedReader(new InputStreamReader(is, charset));
    String strRead = null;
    while ((strRead = reader.readLine()) != null) {
      sbf.append(strRead);
      sbf.append("\r\n");
      reader.close();
      result = sbf.toString();
    }
  } catch (Exception e) {
      e.printStackTrace();
  } finally {
    try {
      if (reader != null) {
        reader.close();
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
  return result;
}

  /**
   * 获取当前系统的时间戳
   */
  private static String getNowTime() {
    return new Date().getTime() + "";
  }

  /**
   * 获取Api 加密签名 算法： md5(secretKey|nowTime()|path)
   *
   * @return Api Sign
   */
  private static String getSign() {
    // 拼接请求加密签名
    StringBuffer tempStr = new StringBuffer("");
    tempStr.append(secretKey);
    tempStr.append("|");
    tempStr.append(apiTime);
    tempStr.append("|");
    tempStr.append(path);
    return encryption(tempStr.toString());
  }

  /**
   * md5加密，可以替换成你自己的
   * @param plainText 明文
   * @return 32位密文（大写）
   */
  private static String encryption(String plainText) {
    String resultMd5 = new String();
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(plainText.getBytes());
        byte b[] = md.digest();

        int i;

        StringBuffer buf = new StringBuffer("");
        for (int offset = 0; offset < b.length; offset++) {
            i = b[offset];
            if (i < 0)
                i += 256;
            if (i < 16)
                buf.append("0");
            buf.append(Integer.toHexString(i));
        }

        resultMd5 = buf.toString();

    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return resultMd5.toUpperCase(Locale.ENGLISH);
  }
}