一、背景 $ s6 j! G% L' I
在1688官网里面有很多信息是需要登录才能看得到的,比如商家的联系电话等等。那么我们在抓取它的网页的时候,肯定是需要维持登录状态才能得到对应的内容。这里面就会涉及到自动登录的问题。) l8 p8 c$ D8 n; q* }' Y
登录地址:https://login.1688.com/member/signin.htm
$ @! `0 {7 s, _2 N5 ]4 m! u
6 q8 I; R$ m1 S$ N. A 二、自动登录方法
6 ?1 J3 H5 N8 K$ [9 \( b 1、找到对应的元素,账号、密码框。; l; N; B- H7 N1 S& s* Z5 n
6 `* W8 Q; L( f! }* \+ B1 T" h
2、把账号、密码值带进去。% \0 w! J- p8 n7 D. i
List<string> logininfolist = new List<string>();
string file = "1688Account.json";
if (!File.Exists(file))
{
throw new ArgumentException("1688Account not found");
}
string data = File.ReadAllText(file, Encoding.UTF8);
var account1688list = JsonConvert.DeserializeObject<List<Account1688Item>>(data);
logininfolist.AddRange(account1688list.Select(o => o.AccountPassword).ToList());
Random rdinfo = new Random();
int indexinfo = rdinfo.Next(logininfolist.Count);
var modelinfo = logininfolist[indexinfo];
driver.FindElement(By.Id("fm-login-id")).SendKeys(modelinfo.Split('+')[0]);
driver.FindElement(By.Id("fm-login-password")).SendKeys(modelinfo.Split('+')[1]);
3、模拟点击提交按钮操作。
& F/ ?* @0 [, Y* n
// Thread.Sleep(1000 * 30); //30时间操作
driver.FindElement(By.ClassName("password-login")).Click();
Thread.Sleep(1000 * 30);//30时间操作
4、进入控制台,验证是否登陆成功。并记录Cookies,下次再来的时候,直接使用现成的Cookies,一般有效期可以维持一天多左右。
/ i- A( k1 p7 ?6 u driver.Navigate().GoToUrl("https://work.1688.com/?tracelog=login_target_is_blank_1688");
Thread.Sleep(1000 * 5);
if (driver.Url.Contains("login.1688.com"))
{
Console.WriteLine("登录失败");
CookieHelp.DeleteCookies();
Console.WriteLine("2");
throw new Exception("重新登录");
}
driver.Navigate().Refresh();
CookieHelp.WriteCookies(driver.Manage().Cookies.AllCookies);
5、判断是否有现成的登录cookies。
7 c. y) a) b2 R1 {- D6 s+ m7 G5 J" Q8 ? driver.Navigate().GoToUrl("https://www.1688.com/");
driver.Manage().Cookies.DeleteAllCookies();
var listCookie = CookieHelp.GetCookie();
if (listCookie != null)
{
logintry = 0;
Console.WriteLine("有现成cookies" + DateTime.UtcNow);
foreach (var item in listCookie)
{
driver.Manage().Cookies.AddCookie(new Cookie(item.Name, item.Value, item.Domain, item.Path, item.Expiry));
}
Thread.Sleep(2000);
driver.Navigate().GoToUrl("https://work.1688.com/?tracelog=login_target_is_blank_1688");
Thread.Sleep(1000 * 2);
三、完整代码 6 b/ v; w; d! q% i5 V
/// <summary>
/// 登录 todo
/// </summary>
/// <param name="_reptilesImageSearchService"></param>
/// <param name="options"></param>
/// <param name="driver"></param>
public void Implement(IReptilesImageSearchService _reptilesImageSearchService, IWebDriver driver)
{
driver.Navigate().GoToUrl("https://www.1688.com/");
driver.Manage().Cookies.DeleteAllCookies();
var listCookie = CookieHelp.GetCookie();
if (listCookie != null)
{
logintry = 0;
Console.WriteLine("有现成cookies" + DateTime.UtcNow);
foreach (var item in listCookie)
{
driver.Manage().Cookies.AddCookie(new Cookie(item.Name, item.Value, item.Domain, item.Path, item.Expiry));
}
Thread.Sleep(2000);
driver.Navigate().GoToUrl("https://work.1688.com/?tracelog=login_target_is_blank_1688");
Thread.Sleep(1000 * 2);
if (driver.Url.Contains("login.1688.com"))
{
Console.WriteLine("cookies过期了");
CookieHelp.DeleteCookies();
Console.WriteLine("1");
throw new Exception("重新登录");
}
}
else
{
if (logintry > 4)
{
Console.WriteLine("登陆次数超出:" + logintry);
throw new Exception("登陆次数超出,退出");
}
logintry++;
Console.WriteLine("无现成cookies" + DateTime.UtcNow);
driver.Navigate().GoToUrl("https://login.1688.com/member/signin.htm");
#region 登录动作
driver.SwitchTo().Frame(0);
IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
////// string returnjs = (string)js.ExecuteScript("Object.defineProperties(navigator, {webdriver:{get:()=>undefined}});");
string jsfile = File.ReadAllText("stealth.min.js", Encoding.UTF8);
string returnjs = (string)js.ExecuteScript(jsfile);
List<string> logininfolist = new List<string>();
string file = "1688Account.json";
if (!File.Exists(file))
{
throw new ArgumentException("1688Account not found");
}
string data = File.ReadAllText(file, Encoding.UTF8);
var account1688list = JsonConvert.DeserializeObject<List<Account1688Item>>(data);
logininfolist.AddRange(account1688list.Select(o => o.AccountPassword).ToList());
Random rdinfo = new Random();
int indexinfo = rdinfo.Next(logininfolist.Count);
var modelinfo = logininfolist[indexinfo];
driver.FindElement(By.Id("fm-login-id")).SendKeys(modelinfo.Split('+')[0]);
driver.FindElement(By.Id("fm-login-password")).SendKeys(modelinfo.Split('+')[1]);
// Thread.Sleep(1000 * 30); //30时间操作
driver.FindElement(By.ClassName("password-login")).Click();
Thread.Sleep(1000 * 30);//30时间操作
#endregion 登录动作
driver.Navigate().GoToUrl("https://work.1688.com/?tracelog=login_target_is_blank_1688");
Thread.Sleep(1000 * 5);
if (driver.Url.Contains("login.1688.com"))
{
Console.WriteLine("登录失败");
CookieHelp.DeleteCookies();
Console.WriteLine("2");
throw new Exception("重新登录");
}
driver.Navigate().Refresh();
CookieHelp.WriteCookies(driver.Manage().Cookies.AllCookies);
}
Thread.Sleep(1000);
}
四、注意事项 8 D3 v: R: l% O" j1 I
1、登录的时候,有时候会出现滑块验证码,这时候一般是使用其他账号重试或者是在当前的机器手工登录一次,后面基本就会被信任。
; c) w k, C' z 2、使用这段代码本身就是模拟真实用户的行为,最大限度的减少验证码出现的几率。
9 V3 H+ ~$ L& L3 S: p* l6 E
IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
////// string returnjs = (string)js.ExecuteScript("Object.defineProperties(navigator, {webdriver:{get:()=>undefined}});");
string jsfile = File.ReadAllText("stealth.min.js", Encoding.UTF8);
string returnjs = (string)js.ExecuteScript(jsfile);