java获取百度网盘真实下载链接的方法

本文实例讲述了java获取百度网盘真实下载链接的方法。分享给大家供大家参考。具体如下：

目前还存在一个问题，同一ip在获取3次以后会出现验证码，会获取失败，感兴趣的朋友对此可以加以完善。

返回的List<Map<String, Object>> 中的map包含：fileName( 文件名),url(实链地址)

HttpRequest.java如下：

				?

									import java.io.BufferedReader;

									import java.io.IOException;

									import java.io.InputStream;

									import java.io.InputStreamReader;

									import java.io.RandomAccessFile;

									import java.lang.reflect.Method;

									import java.net.HttpURLConnection;

									import java.net.URL;

									public class HttpRequest {

									 public static String getData(String u) throws Exception {

									  String re="";

									    URL url = new URL(u);

									  HttpURLConnection httpURLConnection = (HttpURLConnection) url

									    .openConnection();

									  httpURLConnection.setRequestMethod("GET");

									  httpURLConnection.setDoInput(true);

									  httpURLConnection.setDoOutput(true);

									  InputStream is = httpURLConnection.getInputStream();

									  InputStreamReader isr = new InputStreamReader(is);

									  BufferedReader bufferedReader = new BufferedReader(isr);

									  String iL = "";

									  while ((iL = bufferedReader.readLine()) != null) {

									   re += iL + "\n";

									  }

									  return re;

									 }

									}

获取方法：

				?

									import java.net.URLEncoder;

									import java.util.ArrayList;

									import java.util.HashMap;

									import java.util.List;

									import java.util.Map;

									import org.json.JSONArray;

									import org.json.JSONObject;

									import org.jsoup.Jsoup;

									import org.jsoup.nodes.Document;

									public class BaiduNetDisk {

									 public static List<Map<String, Object>> getUrl(String url) throws Exception {

									  List<String> fs_id = new ArrayList<String>();

									  List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();

									  Document doc = Jsoup.connect(url).get();

									  String html = doc.toString();

									  int a = html.indexOf("{\"typicalPath");

									  int b = html.indexOf("yunData.getCon");

									  int sign_head = html.indexOf("yunData.SIGN = \"");

									  int sign_foot = html.indexOf("yunData.TIMESTAMP");

									  int time_head = html.indexOf("yunData.TIMESTAMP = \"");

									  int time_foot = html.indexOf("yunData.SHARE_UK");

									  int share_id_head = html.indexOf("yunData.SHARE_ID = \"");

									  int share_id_foot = html.indexOf("yunData.SIGN ");

									  String sign = html.substring(sign_head, sign_foot);

									  sign = sign.substring(sign.indexOf("\"") + 1, sign.indexOf("\";"));

									  String time = html.substring(time_head, time_foot);

									  time = time.substring(time.indexOf("\"") + 1, time.indexOf("\";"));

									  String share_id = html.substring(share_id_head, share_id_foot);

									  share_id = share_id.substring(share_id.indexOf("\"") + 1,

									    share_id.indexOf("\";"));

									  System.out.println(share_id);

									  html = html.substring(a, b);

									  a = html.indexOf("{\"typicalPath");

									  b = html.indexOf("};");

									  JSONArray jsonArray = new JSONArray("[" + html.substring(a, b + 1)

									    + "]");

									  JSONObject jsonObject = jsonArray.getJSONObject(0);

									  String uk = jsonObject.getString("uk");

									  String shareid = jsonObject.getString("shareid");

									  String path = URLEncoder.encode(jsonObject.getString("typicalPath"),

									    "utf-8");

									  jsonArray = new JSONArray("[" + jsonObject.getString("file_list") + "]");

									  jsonObject = jsonArray.getJSONObject(0);

									  jsonArray = new JSONArray(jsonObject.getString("list"));

									  jsonObject = jsonArray.getJSONObject(0);

									  String app_id = jsonObject.getString("app_id");

									  if (jsonObject.getString("isdir").equals("1")) {

									   String url1 = "http://pan.baidu.com/share/list?uk="

									     + uk

									     + "&shareid="

									     + shareid

									     + "&page=1&num=100&dir="

									     + path

									     + "&order=time&desc=1&_="

									     + time

									     + "&bdstoken=c51077ce0e0e313a16066612a13fbcd4&channel=chunlei&clienttype=0&web=1&app_id="

									     + app_id;

									   String fileListJson = HttpRequest.getData(url1);

									   System.out.println(fileListJson);

									   jsonArray = new JSONArray("[" + fileListJson + "]");

									   jsonObject = jsonArray.getJSONObject(0);

									   jsonArray = new JSONArray(jsonObject.getString("list"));

									  }

									  final int size = jsonArray.length();

									  for (int i = 0; i < size; i++) {

									   Map<String, Object> map = new HashMap<String, Object>();

									   jsonObject = jsonArray.getJSONObject(i);

									   String fileName = jsonObject.getString("server_filename");

									   map.put("fileName", fileName);

									   fs_id.add(jsonObject.getString("fs_id"));

									   String fileInfo = HttpRequest

									     .getData("http://pan.baidu.com/api/sharedownload?sign="

									       + sign

									       + "×tamp="

									       + time

									       + "&bdstoken=c51077ce0e0e313a16066612a13fbcd4&channel=chunlei&clienttype=0&web=1&app_id=250528&encrypt=0&product=share&uk="

									       + uk + "&primaryid=" + share_id + "&fid_list=%5B"

									       + fs_id.get(i) + "%5D");

									   JSONArray jsonArray2 = new JSONArray("[" + fileInfo + "]");

									   JSONObject json_data = jsonArray2.getJSONObject(0);

									   if (json_data.getString("errno").equals("0")) {

									    jsonArray2 = new JSONArray(json_data.getString("list"));

									    json_data = jsonArray2.getJSONObject(0);

									    map.put("url", json_data.getString("dlink"));

									   } else if (json_data.getString("errno").equals("-20")) {

									    return null;

									    // String getVerCode();

									   } else {

									    return null;

									   }

									   list.add(map);

									  }

									  return list;

									 }

									}