public List <DownLoadInfo> Execute(List <SpecialList> specialList, string savePath)
{
List <DownLoadInfo> downList = new List <DownLoadInfo>();
foreach (var item in specialList)
{
string url = $"https://cloud.alilo.com.cn/baby/api/t/external/getSpecialInfo?id={item.id}";
string result = HttpClinetHelper.DoPost(url, null);
ApiResult apiResult = new ApiResult();
apiResult = JsonConvert.DeserializeAnonymousType(result, apiResult);
if (apiResult.msg == "成功")
{
foreach (var items in apiResult.content.musicList)
{
DownLoadInfo downLoadInfo = new DownLoadInfo();
string Path = string.Empty;
string tempPath = string.Empty;
tempPath = $"{savePath}/{item.classname}/{item.name}";
if (!Directory.Exists(tempPath))
{
Directory.CreateDirectory(tempPath);
}
Path = $"{tempPath}/{items.name}";
downLoadInfo.Path = Path;
downLoadInfo.MusicPath = items.path;
downList.Add(downLoadInfo);
}
}
;
}
return(downList);
}
public event EventHandler <OnErrorEventArgs> OnError; //出错事件
/// <summary>
/// 文件下载
/// </summary>
private void DownLoad(DownLoadInfo downLoad)
{
string ext = string.Empty;
var fileName = Path.GetFileName(downLoad.MusicPath);
var fileSuffix = fileName.Split('.');
if (fileName.Contains("mp3"))
{
ext = fileSuffix.FirstOrDefault(e => e.Contains("mp3"));
}
else
{
ext = "mp3";
}
downLoad.Path = Path.Combine($"{downLoad.Path}.{ext}");
try
{
if (this.OnStart != null)
{
OnStart(this, new OnStartEventArgs(new Uri(downLoad.MusicPath)));
}
var watch = new Stopwatch();
watch.Start();
using (WebClient client = new WebClient())
{
client.DownloadFile(downLoad.MusicPath, downLoad.Path);
}
watch.Stop();
var threadId = System.Threading.Thread.CurrentThread.ManagedThreadId; //获取当前任务线程ID
var milliseconds = watch.ElapsedMilliseconds; //获取请求执行时间
if (this.OnCompleted != null)
{
this.OnCompleted(this, new OnCompletedEventArgs(downLoad.MusicPath, threadId, milliseconds));
}
}
catch (Exception ex)
{
if (this.OnError != null)
{
this.OnError(this, new OnErrorEventArgs(downLoad.MusicPath, ex));
}
}
}
public string Start(List <DownLoadInfo> list)
{
var pathsCount = list.Count; //资源总数
// 计算编译线程数量
int threadCount = pathsCount % Number100 == 0 ? pathsCount / Number100 : pathsCount / Number100 + 1;
if (threadCount > MaxThreadCount)
{
threadCount = MaxThreadCount;
}
int threadPqgeSize = (pathsCount / threadCount) + 1;
int typeSum = 0;
List <DownLoadParams> parameters = new List <DownLoadParams>(threadCount);
DownLoadInfo[] downloadParam = null;
DownLoadParams downLoadParams = null;
int index, endSize = 0;;
for (int i = 0; i < threadCount; i++)
{
downLoadParams = new DownLoadParams();
endSize = threadPqgeSize * (i + 1);
if (endSize > pathsCount)
{
var a = threadPqgeSize + pathsCount - endSize;
downloadParam = new DownLoadInfo[threadPqgeSize + pathsCount - endSize];
endSize = pathsCount;
}
else
{
downloadParam = new DownLoadInfo[threadPqgeSize];
}
index = 0;
for (int j = typeSum; j < endSize; j++)
{
downloadParam[index++] = list[j];
}
downLoadParams.downLoadInfo = downloadParam;
typeSum += downloadParam.Count();
parameters.Add(downLoadParams);
}
// 创建编译线程
List <Thread> threads = new List <Thread>(threadCount);
for (int i = 1; i < threadCount; i++)
{
Thread thread = new Thread(DownLoadDork);
thread.IsBackground = true;
thread.Name = "DownloadThread #" + i.ToString();
threads.Add(thread);
thread.Start(parameters[i]);
}
// 重用当前线程：为当前线程指派下载任务。
DownLoadDork(parameters[0]);
// 等待所有的下载线程执行线束。
foreach (Thread thread in threads)
{
thread.Join();
}
return("下载完成");
}
