/**
* @author why
*
*/
public class VoiceDownload {
/**
*
* 根据文件id下载文件
*
*
*
* @param mediaId
*
* 媒体id
*
* @throws Exception
*/
public static InputStream getInputStream(String accessToken, String mediaId) {
InputStream is = null;
String url = "http://file.api.weixin.qq.com/cgi-bin/media/get?access_token="
+ accessToken + "&media_id=" + mediaId;
try {
URL urlGet = new URL(url);
HttpURLConnection http = (HttpURLConnection) urlGet
.openConnection();
http.setRequestMethod("GET"); // 必须是get方式请求
http.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
http.setDoOutput(true);
http.setDoInput(true);
System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒
System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒
http.connect();
// 获取文件转化为byte流
is = http.getInputStream();
} catch (Exception e) {
e.printStackTrace();
}
return is;
}
/**
*
* 获取下载图片信息（jpg）
*
*
*
* @param mediaId
*
* 文件的id
*
* @throws Exception
*/
public static void saveImageToDisk(String accessToken, String mediaId, String picName, String picPath)
throws Exception {
InputStream inputStream = getInputStream(accessToken, mediaId);
byte[] data = new byte[10240];
int len = 0;
FileOutputStream fileOutputStream = null;
try {
fileOutputStream = new FileOutputStream(picPath+picName+".amr");
while ((len = inputStream.read(data)) != -1) {
fileOutputStream.write(data, 0, len);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fileOutputStream != null) {
try {
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
