java获取优酷视频真实地址

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import net.sf.json.JSONArray;
import net.sf.json.JSONException;
import net.sf.json.JSONObject;

public class VideoTools
{
public static void main(String[] args) throws Exception
{
VideoTools manager = new VideoTools();
String jsonUrl = manager.getVideoUrl("http://v.youku.com/v_show/id_XMTgzNDA5OTMy.html");
System.out.println(jsonUrl.split("#").length);
}

public String getVideoUrl(String htmlUrl) throws JSONException{
//正则表达式解析地址，取id
Pattern p = Pattern.compile(".*id_(\\w+)\\.html");
String u = htmlUrl;
Matcher m = p.matcher(u);
String id = "";
if (m.find()) {
id = m.group(1);
}
System.out.println(id);

//  String id="XMTgzNDA5OTMy";
String s = getContent("http://v.youku.com/player/getPlayList/VideoIDS/"+id);
JSONObject jsobj = new JSONObject();
jsobj =jsobj.fromObject(s);
JSONArray jsonarr = jsobj.getJSONArray("data");
System.out.println(jsobj);
JSONObject obj1 = jsonarr.getJSONObject(0);
String title= obj1.getString("title");
double seed = obj1.getDouble("seed");
JSONObject obj2 = obj1.getJSONObject("streamfileids");
String mp4id = null;
String flvid = null;
String format = null;
try
{
mp4id = obj2.getString("mp4");
format = "mp4";
} catch (JSONException e)
{
System.out.println("没有MP4格式");
try
{
flvid = obj2.getString("flv");
format = "flv";
} catch (JSONException e1)
{
System.out.println("没有FLV格式");
return "";
}
}
String realfileid = null;
if (format.equals("mp4"))
{
realfileid = getFileID(mp4id, seed);
} else
{
realfileid = getFileID(flvid, seed);
}

String idLeft = realfileid.substring(0, 8);
String idRight = realfileid.substring(10);

String sid = genSid();
JSONObject obj3 = obj1.getJSONObject("segs");
JSONArray mp4arr = obj3.getJSONArray(format);
String VideoUrl="";
for (int i = 0; i < mp4arr.size(); i++)
{
JSONObject o = mp4arr.getJSONObject(i);
String k = o.getString("k");
String url = "http://f.youku.com/player/getFlvPath/sid/" + sid + "_" + String.format("%1$02X", i) + "/st/" + format
+ "/fileid/" + idLeft + String.format("%1$02X", i) + idRight + "?K=" + k;
System.out.println(url);
VideoUrl+=url+"#";
}
return VideoUrl;
}

private static String getFileID(String fileid, double seed)
{
String mixed = getFileIDMixString(seed);
String[] ids = fileid.split("\\*");
StringBuilder realId = new StringBuilder();
int idx;
for (int i = 0; i < ids.length; i++)
{
idx = Integer.parseInt(ids[i]);
realId.append(mixed.charAt(idx));
}
return realId.toString();
}

public static String genSid()
{
int i1 = (int) (1000 + Math.floor(Math.random() * 999));
int i2 = (int) (1000 + Math.floor(Math.random() * 9000));
return System.currentTimeMillis() + "" + i1 + "" + i2;
}

private static String getFileIDMixString(double seed)
{
StringBuilder mixed = new StringBuilder();
StringBuilder source = new StringBuilder("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\\:._-1234567890");
int index, len = source.length();
for (int i = 0; i < len; ++i)
{
seed = (seed * 211 + 30031) % 65536;
index = (int) Math.floor(seed / 65536 * source.length());
mixed.append(source.charAt(index));
source.deleteCharAt(index);
}
return mixed.toString();
}

public static String getContent(String strUrl) {
try {

URL url = new URL(strUrl);
BufferedReader br = new BufferedReader(new InputStreamReader(
url.openStream()));
String s = "";
StringBuffer sb = new StringBuffer("");
while ((s = br.readLine()) != null) {
sb.append(s);
}
br.close();
return sb.toString();
} catch (Exception e) {
return "error open url:" + strUrl;
}

}
}