首先，你必须通过以下连接下载歌曲：
http://box.zhangmen.baidu.com/x?op=12&count=1&title={title}$${author}$$$$
能够获取一个xml文件通过解析xml文件就能够读取到音乐下载的地址和歌词下载的地址。
部分代码：
String title = "六月的雨";
String singer = "胡歌";
String url = "http://box.zhangmen.baidu.com/x?op=12&count=1&title={title}$${author}$$$$"
url=url.replace("{title}", URLEncoder.encode(title, "utf-8"));
//将String字符串转码
if(singer == null) {
url=url.replace("$${author}$$$$", "");
}else {
url=url.replace("{author}", URLEncoder.encode(singer, "utf-8"));
}
以下这部分是依据url地址，下载xml文件的代码：
public static InputStream downLoad(String urlStr) {
//依据网络地址获取输入流
InputStream inputStream = null;
try {
URL url = new URL(urlStr);
HttpURLConnection urlConn = (HttpURLConnection)url.openConnection();
urlConn.setRequestMethod("GET");
urlConn.setConnectTimeout(10000);
urlConn.setDoOutput(true);
urlConn.setDoInput(true);
//urlConn.setUseCaches(true);
urlConn.connect();
System.out.println("UrlCode:"+urlConn.getResponseCode());
if(urlConn.getResponseCode() != HttpURLConnection.HTTP_OK) {
System.out.println("请求失败");
}else {
System.out.println("请求成功 ");
}
inputStream = urlConn.getInputStream();
}catch(Exception e) {
e.printStackTrace();
}
return inputStream;
}
public static String downLoadTextFile(String url) {
StringBuffer sb = new StringBuffer();
BufferedReader buffer = null;
InputStream instream = null;
String line=null;
try {
instream = downLoad(url);
buffer = new BufferedReader(new InputStreamReader(instream,"GB2312"));
while((line = buffer.readLine()) != null){
System.out.println(line);
sb.append(line+"\n");
}
}catch(IOException e) {
e.printStackTrace();
}finally {
try {
buffer.close();
instream.close();
}catch(IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
下载的XML文件例如以下：
<<result>
<count>1</count>
<url>
<encode>
<![CDATA[
http://zhangmenshiting.baidu.com/data2/music/35447544/ZGdnaGxra2xfn6NndK6ap5WXcJppZ2ppZ2aWaWaXnWthlJSWmphucGJklZaWmJiakmlplpZuZ5xkaZZramdtbGFmbFqin5t1YWBnamVtcGhpaGhpa21rcTE$
]]>
</encode>
<decode>
<![CDATA[
35447544.mp3?xcode=f413164c51af30babeb7812bbababa76ba80d37c75164049&mid=0.46079086556749
]]>
</decode>
<type>8</type>
<lrcid>35220</lrcid>
<flag>1</flag>
</url>
<durl>
<encode>
<![CDATA[
http://zhangmenshiting2.baidu.com/data2/music/35447547/ZGdnaGxra29fn6NndK6ap5WXcJppZ2ppZ2aWaWaXnWthlJSWmphucGJklZaWmJiakmlpZZaYZ2pnY2xobm1wbpOTaFqin5t1YWBnamVtcGhpaGhpa21rcTE$
]]>
</encode>
<decode>
<![CDATA[
35447547.mp3?
xcode=f413164c51af30babeb7812bbababa761ab0261949796ba5&mid=0.46079086556749
]]>
</decode>
<type>8</type>
<lrcid>35220</lrcid>
<flag>1</flag>
</durl>
<p2p>
<hash>9d1c20c4d3055f25acb6b61d727cafcfae096519</hash>
<url>
<![CDATA[ ]]>
</url>
<type>mp3</type>
<size>5511091</size>
<bitrate>192</bitrate>
</p2p>
</result>
当中的count值为1是说返回的是一个,,encode里的值是歌曲加密后的地址,加密仅仅是对文件名称加密
的,
我们须要的仅仅是前面的路径,也就是 http://zhangmenshiting.baidu.com/data2/music/35447544/
这部分,然后复制decode 的值:
35447544.mp3?
xcode=f413164c51af30babeb7812bbababa76ba80d37c75164049&mid=0.46079086556749
把他们连接起来就是mp3的url下载地址：
http://zhangmenshiting.baidu.com/data2/music/35447544/35447544.mp3?xcode=f413164c51af30babeb7812bbababa76ba80d37c75164049&mid=0.46079086556749
http://box.zhangmen.baidu.com/bdlrc/
这个是百度lrc歌词存放地址,
xml中的lrcid就是地址可是要把它转换一下。首先
35220/100 =352.20 取小于等于352.20 的最大整数就是352,于是这首歌完整的歌词地址就出来了:
http://box.zhangmen.baidu.com/bdlrc/352/35220.lrc
这部分也是网上看到的，能够到网上查到的。好像就是这么个规则
以下是解析XML文件：
//使用dom解析xml文件
public static String parasXML(InputStream inputStream) {
try {
String lrcid = null,url = null;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document dom = builder.parse(inputStream);
Element root = dom.getDocumentElement();
Node count = root.getFirstChild();
NodeList items = root.getElementsByTagName("url");
if(items.getLength() <= 0) {
System.out.println("歌曲未找到");
return null;
}else {
Element urlNode = (Element)items.item(0);
//System.out.println(urlNode.getTextContent());
Element lrcidNode = (Element)(urlNode.getElementsByTagName("lrcid").item(0));
Element encodeNode = (Element)urlNode.getElementsByTagName("encode").item(0);
Element decodeNode = (Element)urlNode.getElementsByTagName("decode").item(0);
if(encodeNode == null) {
System.out.println("歌曲信息为空，无法下载");
return null;
}else {
System.out.println("encode="+encodeNode.getTextContent());
}
if(lrcidNode == null) {
System.out.println("lrcid == null");
}else {
System.out.println(lrcidNode.getNodeName());
}
if("lrcid".equals(lrcidNode.getNodeName())) {
System.out.println(lrcidNode.getTextContent());
lrcid = lrcidNode.getTextContent();
}else {
System.out.println(lrcidNode.getNodeName());
}
//获取encode里的值
String temp1 = encodeNode.getTextContent();
//获取decodeNode的值
String temp2 = decodeNode.getTextContent();
StringBuffer buffer = new StringBuffer();
//接下来是将temp1和temp2进行切割解码合并在一起
String [] arrayTemp1 = temp1.split("/");
for(int i=0;i<arrayTemp1.length-1;i++) {
buffer.append(arrayTemp1[i]+"/");
}
//把解码的地址合在一起
buffer.append(temp2);
url = buffer.toString();
url = url + "##"+ lrcid;
System.out.println("xml:url="+url);
return url;
}
}catch(Exception e) {
e.printStackTrace();
return null;
}
}
后面就能够通过##来分开url和lrcid的值从而获取对应的值
下载文件的就能够先获取InputStream然后通过这个流接口获取对应的值
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