问题与iPhone应用程序解析XML的YouTube

Question

问候， 我正在使用YouTube在我application.i得到像下面 的性反应/ ---------------

enter code here 



    <entry> 
<id>http://gdata.youtube.com/feeds/api/videos/5iVl6iPODmM</id> 
<published>2010-10-05T11:02:36.000Z</published> 
<updated>2010-10-05T22:28:54.000Z</updated> 
<category scheme='http://schemas.google.com/g/2005#kind' term='http://gdata.youtube.com/schemas/2007#video'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/categories.cat' term='Entertainment' label='Entertainment'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Rusty'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='horse trainer'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Jacob Rhodes'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Secretariat'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Penny Chenery'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Jennifer Smart'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Gary Stevens'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='jockey'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='William Nack'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Otto Thorwarth'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Sean Michael Cunningham'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Willa Baker'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Dylan Baker'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='AJ Michalka'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Diane Lane'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Mark Ciardi'/> 
<category scheme='http://gdata.youtube.com/schemas/2007/keywords.cat' term='Margo Martindale'/> 
<title type='text'>Secretariat Red Carpet by Jennifer Smart</title> 
<content type='text'>I've seen a lot of things on the red carpet, including a variety of animals, but this is the first time I've seen a real horse at a movie premiere! I enjoyed speaking with the actors and movie makers, and I learned a lot about Secretariat and the inspiring story about this Triple Crown winner beating the odds.</content> 
<link rel='alternate' type='text/html' href='http://www.youtube.com/watch?v=5iVl6iPODmM&amp;feature=youtube_gdata'/> 
<link rel='http://gdata.youtube.com/schemas/2007#video.responses' type='application/atom+xml' href='http://gdata.youtube.com/feeds/api/videos/5iVl6iPODmM/responses'/> 
<link rel='http://gdata.youtube.com/schemas/2007#video.related' type='application/atom+xml' href='http://gdata.youtube.com/feeds/api/videos/5iVl6iPODmM/related'/> 
<link rel='http://gdata.youtube.com/schemas/2007#mobile' type='text/html' href='http://m.youtube.com/details?v=5iVl6iPODmM'/> 
<link rel='self' type='application/atom+xml' href='http://gdata.youtube.com/feeds/api/users/JenSmartTV/uploads/5iVl6iPODmM'/> 
<author> 
    <name>JenSmartTV</name> 
    <uri>http://gdata.youtube.com/feeds/api/users/jensmarttv</uri> 
</author> 
<gd:comments><gd:feedLink href='http://gdata.youtube.com/feeds/api/videos/5iVl6iPODmM/comments' countHint='0'/></gd:comments> 
<yt:location>Hollywood, CA</yt:location> 
<media:group> 
    <media:category label='Entertainment' scheme='http://gdata.youtube.com/schemas/2007/categories.cat'>Entertainment</media:category> 
    <media:content url='http://www.youtube.com/v/5iVl6iPODmM?f=user_uploads&amp;app=youtube_gdata' type='application/x-shockwave-flash'    medium='video' isDefault='true' expression='full' duration='547' yt:format='5'/> 
    <media:content url='rtsp://v1.cache5.c.youtube.com/CigLENy73wIaHwljDs4j6mUl5hMYDSANFEgGUgx1c2VyX3VwbG9hZHMM/0/0/0/video.3gp' type='video/  3gpp' medium='video' expression='full' duration='547' yt:format='1'/> 
    <media:content url='rtsp://v6.cache2.c.youtube.com/CigLENy73wIaHwljDs4j6mUl5hMYESARFEgGUgx1c2VyX3VwbG9hZHMM/0/0/0/video.3gp' type='video/  3gpp' medium='video' expression='full' duration='547' yt:format='6'/> 
    <media:description type='plain'>I've seen a lot of things on the red carpet, including a variety of animals, but this is the first time  I've seen a real horse at a movie premiere! I enjoyed speaking with the actors and movie makers, and I learned a lot about Secretariat and the inspiring story about this Triple Crown winner beating the odds.</media:description> 
    <media:keywords>Rusty, horse trainer, Jacob Rhodes, Secretariat, Penny Chenery, Jennifer Smart, Gary Stevens, jockey, William Nack,   Otto Thorwarth, Sean Michael Cunningham, Willa Baker, Dylan  Baker, AJ Michalka, Diane Lane, Mark Ciardi, Margo Martindale</ media:keywords> 
    <media:player url='http://www.youtube.com/watch?v=5iVl6iPODmM&amp;feature=youtube_gdata_player'/> 
    <media:thumbnail url='http://i.ytimg.com/vi/5iVl6iPODmM/2.jpg' height='90' width='120' time='00:04:33.500'/> 
    <media:thumbnail url='http://i.ytimg.com/vi/5iVl6iPODmM/1.jpg' height='90' width='120' time='00:02:16.750'/> 
    <media:thumbnail url='http://i.ytimg.com/vi/5iVl6iPODmM/3.jpg' height='90' width='120' time='00:06:50.250'/> 
    <media:thumbnail url='http://i.ytimg.com/vi/5iVl6iPODmM/0.jpg' height='240' width='320' time='00:04:33.500'/> 
    <media:title type='plain'>Secretariat Red Carpet by Jennifer Smart</media:title> 
    <yt:duration seconds='547'/> 
</media:group> 
<yt:recorded>2010-09-30</yt:recorded> 
<yt:statistics favoriteCount='0' viewCount='60'/> 
</entry> 

// ------------- 现在我想媒体的价值观：缩略图，媒体：内容链接

我使用的libxml2解析。 请帮忙！ Thanx提前!!!我enter code here

Answer 1

如何使用饲料的JSON格式？您可以将?alt=json添加到URL以获取其JSON版本（例如，http://gdata.youtube.com/feeds/api/videos/5iVl6iPODmM?alt=json）。然后你可以使用JSON库（比如这个：http://stig.github.com/json-framework/）来解析它。

希望这会有所帮助！