python下载百度音乐代码

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    #!/usr/bin/env python  
    #-*- coding: UTF-8 -*-  
      
    import sys,os  
    import urllib,urllib2  
    from bs4 import BeautifulSoup  
    import json  
    from multiprocessing import Process  
      
    class BaiDuMusic():  
        def __init__(self):  
            reload(sys)    
            sys.setdefaultencoding('utf8')     
      
        def search(self,songName):  
            firstUrl = "http://music.baidu.com/search?key="+urllib.quote(str(songName))  
            userAgent = " User-Agent:Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/39.0.2171.71 Safari/537.36 "  
            headers = { 'User-Agent' : userAgent }  
            requst = urllib2.Request(firstUrl,headers = headers)   
            result = urllib2.urlopen(requst).read()  
      
            #使用BeautifulSoup快速解析html文档  
            soup = BeautifulSoup(result,from_encoding="utf-8")  
            res_arr = []  
            try:  
                tmpjson = soup.find_all("li",{ "class" : "bb-dotimg clearfix song-item-hook " })  
                for x in tmpjson:  
                    tmpobj = json.loads(x['data-songitem'])  
                    value = unicode(tmpobj['songItem']['oid'])+"+++"+unicode(tmpobj['songItem']['author'])+"+++"+unicode(tmpobj['songItem']['sname'])[4:-5]  
                    res_arr.append(value)  
                return res_arr  
            except Exception,e:  
                print u"抱歉没有找到相关资源".encode("utf-8")  
                return 0  
        def download(self,songid,songName,savePath="down/"):  
            songNewUrl = "http://music.baidu.com/data/music/file?link=&song_id="+str(songid)  
            if not os.path.isdir(savePath):   
                os.makedirs(savePath)  
            savemp3 = savePath.decode('utf-8')+songName.decode('utf-8')+u".mp3"  
            urllib.urlretrieve(songNewUrl,savemp3)   
       
    if __name__=='__main__':  
      
        bMusic = BaiDuMusic()  
        res = bMusic.search(u"冰雨")  
        # for x in res:   
            # print x  
        # 1128053+++刘德华+++冰雨  
        # 7327899+++李翊君+++冰雨  
        # 53535187+++张恒+++冰雨  
        Process(target=bMusic.download,args=(1128053,"刘德华-冰雨")).start()  
        Process(target=bMusic.download,args=(7327899,"李翊君-冰雨")).start()  
        Process(target=bMusic.download,args=(53535187,"张恒-冰雨")).start()  

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