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：
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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;
}
}
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获取方法：
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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;
}
}
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希望本文所述对大家的java程序设计有所帮助。