参考自http://blog.csdn.net/u010752082/article/details/50810190
代码先贴出来：
1 public void searchLyric(){ 2 final String name = musicName.getText().toString(); 3 final String duration = musicDuration.getText().toString(); 4 new Thread(new Runnable() { 5 @Override 6 public void run() { 7 try { 8 //建立连接 -- 查找歌曲 9 String urlStr = "http://lyrics.kugou.com/search?ver=1&man=yes&client=pc&keyword=" + name + "&duration=" + duration + "&hash="; 10 URL url = new URL(encodeUrl(urlStr)); //字符串进行URL编码 11 HttpURLConnection conn = (HttpURLConnection) url.openConnection(); 12 conn.connect(); 13 14 //读取流 -- JSON歌曲列表 15 InputStream input = conn.getInputStream(); 16 String res = FileUtil.formatStreamToString(input); //流转字符串 17 18 JSONObject json1 = new JSONObject(res); //字符串读取为JSON 19 JSONArray json2 = json1.getJSONArray("candidates"); 20 JSONObject json3 = json2.getJSONObject(0); 21 22 //建立连接 -- 查找歌词 23 urlStr = "http://lyrics.kugou.com/download?ver=1&client=pc&id=" + json3.get("id") + "&accesskey=" + json3.get("accesskey") + "&fmt=lrc&charset=utf8"; 24 url = new URL(encodeUrl(urlStr)); 25 conn = (HttpURLConnection) url.openConnection(); 26 conn.connect(); 27 28 //读取流 -- 歌词 29 input = conn.getInputStream(); 30 res = FileUtil.formatStreamToString(input); 31 JSONObject json4 = new JSONObject(res); 32 33 //获取歌词base64，并进行解码 34 String base64 = json4.getString("content"); 35 final String lyric = Base64.getFromBASE64(base64); 36 37 Log.i("lyric", lyric); 38 39 runOnUiThread(new Runnable() { 40 @Override 41 public void run() { 42 showLyric.setText(lyric); 43 } 44 }); 45 46 } catch (Exception e) { 47 e.printStackTrace(); 48 } 49 } 50 }).start(); 51 }
首先说明一下，要搜索到歌词，需要先搜索歌曲，得到歌曲对应的id和accesskey后才能进行歌词的获取。
那么我们先从搜索歌曲的URL开始说起：
String urlStr = "http://lyrics.kugou.com/search?ver=1&man=yes&client=pc&keyword=" + name + "&duration=" + duration + "&hash=";
其中的name为搜索条件，最好为文件名或者“歌手 - 标题”的形式，搜索比较准确。duration为歌曲时长，单位毫秒。
记得要先对字符串链接进行URL编码。
读取流并转换为字符串：
InputStream input = conn.getInputStream(); String res = FileUtil.formatStreamToString(input); //流转字符串
接收到的数据res是这样的：
1 {"ugccandidates":[], 2 "ugc":0, 3 "info":"OK", 4 "status":200, 5 "proposal":"22422076", 6 "keyword":"Impossible", 7 "candidates":[ 8 { 9 "soundname":"", "krctype":2, "nickname":"", "originame":"", "accesskey": 10 "C3D2BF9DD8A47A3FFB622B660D820B8D", "parinfo":[],"origiuid":"0", "score":60, "hitlayer": 11 7, "duration":227000, "sounduid":"0", "song":"Impossible", "uid":"410927974", "transuid": 12 "0", "transname":"", "adjust":0, "id":"22422076", "singer":"M?ns Zelmerl?w", "language":"" 13 }, 14 15 { 16 "soundname":"", "krctype":2, "nickname":"", "originame":"", "accesskey": 17 "F92BD21B377150B8F3C67B2A034D6FE0", "parinfo":[],"origiuid":"0", "score":50, "hitlayer": 18 7, "duration":227000, "sounduid":"0", "song":"Impossible", "uid":"486959192", "transuid": 19 "0", "transname":"", "adjust":0, "id":"19445996", "singer":"The Top Hits Band", "language": 20 "" 21 }, 22 23 { 24 "soundname":"", "krctype":2, "nickname":"", "originame":"", "accesskey": 25 "2B6A8E1CD4B59F475E28F2AF811F59E9", "parinfo":[],"origiuid":"0", "score":40, "hitlayer": 26 7, "duration":226750, "sounduid":"0", "song":"Impossible", "uid":"410927974", "transuid": 27 "0", "transname":"", "adjust":0, "id":"19201245", "singer":"Shontelle", "language":"" 28 }, 29 30 { 31 "soundname":"", "krctype":2, "nickname":"", "originame":"", "accesskey": 32 "D5B9AD83A10659CE2DAAD618C934F382", "parinfo":[],"origiuid":"0", "score":30, "hitlayer": 33 7, "duration":227000, "sounduid":"0", "song":"Impossible", "uid":"486958479", "transuid": 34 "0", "transname":"", "adjust":0, "id":"19160542", "singer":"The Top Hits Band", "language": 35 "" 36 }, 37 38 { 39 "soundname":"", "krctype":2, "nickname":"", "originame":"", "accesskey": 40 "27C664BC593E1B60D486E34AE479EFE7", "parinfo":[],"origiuid":"0", "score":20, "hitlayer": 41 7, "duration":227000, "sounduid":"0", "song":"Impossible", "uid":"486953482", "transuid": 42 "0", "transname":"", "adjust":0, "id":"18918409", "singer":"Tiffany Evans", "language":"" 43 }
44 ] 45 }
我们可以用new JSONObject()将字符串转换为JSON对象，再取出candidates部分
JSONObject json1 = new JSONObject(res); //字符串读取为JSON JSONArray json2 = json1.getJSONArray("candidates");
现在json2就是一个搜索到的歌曲集合了，我们一般取第一个结果，是比较精确的：
JSONObject json3 = json2.getJSONObject(0);
好的，现在我们已经获取到了歌曲信息，接下来就是通过歌曲信息搜索歌词。
搜索歌词的URL需要两个参数，id和accesskey，都可以从刚刚取到的歌曲信息json3中得到：
urlStr = "http://lyrics.kugou.com/download?ver=1&client=pc&id=" + json3.get("id") + "&accesskey=" + json3.get("accesskey") + "&fmt=lrc&charset=utf8";
进行连接后，我们就能获取到歌词的相关数据了：
其中content就是歌词的内容，但是我们发现是经过base64编码过的，我们需要对其进行解码：
//读取流 -- 歌词 input = conn.getInputStream(); res = FileUtil.formatStreamToString(input); JSONObject json4 = new JSONObject(res); //获取歌词base64，并进行解码 String base64 = json4.getString("content"); String lyric = Base64.getFromBASE64(base64);
最后lyric就是我们解码后的歌词了：
到这里基本就结束了。
服务器返回的值有可能是空的，由于时间关系在这里就不写判断了。
流转String、字符串URL编码、base64解码都可以在网上找到，代码比较多这里就不贴出来了。
candidates