public async Task Start(string uriStr, Operation operation, Script script = null)
{
await Task.Run(() => {
Uri uri = new Uri(uriStr);
// 触发开启事件
if (this.OnStart != null)
{
this.OnStart(this, new OnStartEventArgs(uri));
}
// 实例化PhantomJS的WebDricer
PhantomJSDriver driver = new PhantomJSDriver(_service);
try {
DateTime watch = DateTime.Now;
// 请求Url
driver.Navigate().GoToUrl(uriStr);
// 执行JavaScript代码
if (script != null)
{
driver.ExecuteAsyncScript(script.Code, script.Args);
}
// 执行网页操作
if (operation.Action != null)
{
operation.Action.Invoke(driver);
}
// 设置超时时间
WebDriverWait driverWatch = new WebDriverWait(driver, TimeSpan.FromMilliseconds(operation.timeout));
if (operation.Condition != null)
{
driverWatch.Until(operation.Condition);
}
// 获取线程ID
int threadId = Thread.CurrentThread.ManagedThreadId;
// 获取执行时间
long milliseconds = DateTime.Now.Subtract(watch).Milliseconds;
string pageSource = driver.PageSource;
// 触发结束事件
if (this.OnCompleted != null)
{
this.OnCompleted(this, new OnCompletedEventArgs(uri, threadId, pageSource, driver, milliseconds));
}
}
catch (Exception e) {
if (this.OnError != null)
{
this.OnError(this, e);
}
}
finally {
driver.Close();
driver.Quit();
}
});
}
