模拟提交程序相关专题
目录
模拟提交程序相关专题 1
目录 2
1 目的 4
2 登录 4
2.1 WebBrowser 4
2.2 WebClient 4
2.3 HttpWebRequest 6
2.4 实例 6
3 注销 7
3.1 实例 7
4 判断是否登录成功 7
4.1 实例 8
5 保存用户名和密码 9
5.1 实例 9
1 目的
在此文档中，将介绍模拟提交程序相关的几个问题
2 登录
登录主要使用了自动登录和提交post的方法
2.1 WebBrowser
HtmlElement ClickBtn = null ;
if (e.Url.ToString().ToLower().IndexOf( "xxx.htm" ) > 0) //登陆页面
{
HtmlDocument doc = webBrowser1.Document;
for ( int i = 0; i < doc.All.Count ; i++)
{
if (doc.All[i].TagName.ToUpper().Equals( "INPUT" ))
{
switch (doc.All[i].Name)
{
case "userCtl" :
doc.All[i].InnerText = "user01" ;
break ;
case "passCt1" :
doc.All[i].InnerText = "mypass" ;
break ;
case "B1" :
ClickBtn = doc.All[i]; //提交按钮
break ;
}
}
}
ClickBtn.InvokeMember( "Click" ); //执行按扭操作
}
2.2 WebClient
private void StartLoop( int ProxyNum)
{
WebClient [] wcArray = new WebClient [ProxyNum]; //初始化
for ( int idArray = 0; idArray< ProxyNum;idArray++)
{
wcArray[idArray] = new WebClient ();
wcArray[idArray].OpenReadCompleted += new OpenReadCompletedEventHandler (Pic_OpenReadCompleted2);
wcArray[idArray].UploadDataCompleted += new UploadDataCompletedEventHandler (Pic_UploadDataCompleted2);
try
{
......
wcArray[idArray].Proxy = new WebProxy (proxy[1], port);
wcArray[idArray].OpenReadAsync( new Uri ( "http://xxxx.com.cn/tp.asp?Id=129" )); //打开WEB;
proxy = null ;
}
catch
{
}
}
}
private void Pic_OpenReadCompleted2( object sender, OpenReadCompletedEventArgs e)
{
if (e.Error == null )
{
string textData = new StreamReader (e.Result, Encoding .Default).ReadToEnd(); //取返回信息
.....
String cookie = (( WebClient )sender).ResponseHeaders[ "Set-Cookie" ];
(( WebClient )sender).Headers.Add( "Content-Type" , "application/x-www-form-urlencoded" );
(( WebClient )sender).Headers.Add( "Accept-Language" , "zh-cn" );
(( WebClient )sender).Headers.Add( "Cookie" , cookie);
string postData = "......"
byte [] byteArray = Encoding .UTF8.GetBytes(postData); // 转化成二进制数组
(( WebClient )sender).UploadDataAsync( new Uri ( "http://xxxxxxy.com.cn/tp.asp?Id=129" ), "POST" , byteArray);
}
}
private void Pic_UploadDataCompleted2( object sender, UploadDataCompletedEventArgs e)
{
if (e.Error == null )
{
string returnMessage = Encoding .Default.GetString(e.Result);
......
}
}
2.3 HttpWebRequest
private bool PostWebRequest()
{
CookieContainer cc = new CookieContainer ();
string pos tData = "user=" + strUser + "&pass=" + strPsd;
byte [] byteArray = Encoding .UTF8.GetBytes(postData); // 转化
HttpWebRequest webRequest2 = ( HttpWebRequest ) WebRequest .Create( new Uri ( "http://www.xxxx.com/chk.asp" ));
webRequest2.CookieContainer = cc;
webRequest2.Method = "POST" ;
webRequest2.ContentType = "application/x-www-form-urlencoded" ;
webRequest2.ContentLength = byteArray.Length;
Stream newStream = webRequest2.GetRequestStream();
// Send the data.
newStream.Write(byteArray, 0, byteArray.Length); //写入参数
newStream.Close();
HttpWebResponse response2 = ( HttpWebResponse )webRequest2.GetResponse();
StreamReader sr2= new StreamReader (response2.GetResponseStream(), Encoding .Default);
string text2 = sr2.ReadToEnd();
......
}
2.4 实例
2.4.1 HttpWebRequest方法
string submitButton = "连接网络" ;
submitButton = System.Web. HttpUtility .UrlEncode(submitButto);
CookieContainer cc = new CookieContainer ();
string postData = "DDDDD=" + this .txtuserName.Text + "&upass=" + this .txtpassword.Text + "&0MKKey" + submitButton; //+ "&0MKKey=%C1%AC%BD%D3%CD%F8%C2%E7";
byte [] byteArray = Encoding .Default.GetBytes(postData); // 转化
HttpWebRequest webRequest2 = ( HttpWebRequest ) WebRequest .Create( new Uri ( "http://newlogin.bjut.edu.cn" ));
webRequest2.CookieContainer = cc;
webRequest2.Method = "POST" ;
webRequest2.ContentType = "application/x-www-form-urlencoded" ;
webRequest2.ContentLength = byteArray.Length;
Stream newStream = webRequest2.GetRequestStream();
// Send the data.
newStream.Write(byteArray, 0, byteArray.Length); //写入参数
newStream.Close();
2.4.2 WebClient方法
要提交表单的URI字符串。
string uriString = "http://newlogin.bjut.edu.cn" ;
要提交的字符串数据。
string postString = "DDDDD=" + this .txtuserName.Text + "&upass=" + this .txtpassword.Text + "&0MKKey=" + submitButton;
初始化WebClient
WebClient webClient = new WebClient ();
webClient.Headers.Add( "Content-Type" , "application/x-www-form-urlencoded" );
将字符串转换成字节数组
byte [] postData = Encoding .ASCII.GetBytes(postString);
上传数据，返回页面的字节数组
byte [] responseData = webClient.UploadData(uriString, "POST" , postData);
返回的将字节数组转换成字符串(HTML)
string srcString = Encoding .Default.GetString(responseData);
3 注销
注销只是固定的转到指定网页，因此只需转到那个网页即可
3.1 实例
System.Diagnostics. Process .Start( "IEXPLORE.EXE" , "http://newlogin.bjut.edu.cn/F.htm" );
4 判断是否登录成功
将登录成功与失败的网页保存起来，再将用户登录时输入后服务器返回的页面也保存起来，比较两个文件的内容即可。比较两个文件内容不同的方法很多，比较两个文件的大小是一种很简单的方法
4.1 实例
//保存返回的页面
HttpWebResponse response2 = ( HttpWebResponse )webRequest2.GetResponse();
StreamReader sr2 = new StreamReader (response2.GetResponseStream(), Encoding .Default);
string text2 = sr2.ReadToEnd();
StreamWriter sww = new StreamWriter ( "C:\\result.html" , false , Encoding .Default);
sww.Write(text2);
sww.Close();
sr2.Close();
//将登陆成功和失败的页面分别转换成两个字符串
StreamReader streamF = new StreamReader ( Application .StartupPath + @"/fail.html" , Encoding .Default);
string stringFail = streamF.ReadToEnd();
StreamReader streamS = new StreamReader ( Application .StartupPath + @"/success.html" , Encoding .Default);
string stringSuccess = streamS.ReadToEnd();
StreamReader streamR = new StreamReader ( "C:\\result.html" , Encoding .Default);
string stringResult = streamR.ReadToEnd();
streamF.Close();
streamS.Close();
streamR.Close();
//登陆失败
if (stringResult.Length == stringFail.Length)
MessageBox .Show( "帐号或密码不对，请重新输入" );
//登陆成功
else if (stringResult.Length == stringSuccess.Length)
{
MessageBox .Show( "您已经成功登录\n在完成工作后，请别忘记注销" );
//若用户选择保存存储用户名和密码，修改配置文件
if (chkSave.Checked == true )
{
UpdateConfig( "userName" , txtuserName.Text);
UpdateConfig( "password" , txtpassword.Text);
}
}
//删除上面保存的网页
System.IO. File .Delete( "C:\\result.html" );
}
5 保存用户名和密码
保存用户名和密码可以为方便用户使用，省去很多麻烦。可以用修改配置文件的方法来实现
5.1 实例
App.config
<? xml version = " 1.0 " encoding = " utf-8 " ?>
< configuration >
< appSettings >
< add key = " userName " value = "" />
< add key = " password " value = "" />
</ appSettings >
</ configuration >
private void Form1_Load( object sender, EventArgs e)
{
this .txtuserName.Text = ConfigurationSettings .AppSettings[ "userName" ];
this .txtpassword.Text = ConfigurationSettings .AppSettings[ "password" ];
}
/// 用来修改当前程序运行目录debug下的app.config文件
/// </summary>
/// <param name="strProgramName"> string: 文件名 </param>
/// <param name="strKey"> string: config文件中的键名 </param>
/// <param name="strValue"> string: 相应的键值 </param>
public void UpdateConfig( string strKey, string strValue)
{
// System.Reflection.Assembly ass = System.Reflection.Assembly.GetExecutingAssembly();
// string strFileName = ass.Location.Substring(0, (Asm.Location.LastIndexOf("\\") + 1) ) + strProgramName +".exe.config";
XmlDocument xmlDoc = new XmlDocument ();
string strFileName = AppDomain .CurrentDomain.BaseDirectory.ToString() + "loginnew.exe.config" ;
xmlDoc.Load(strFileName);
string xPath = @"//add[@key='" + strKey.Trim() + "']" ;
XmlNode node = xmlDoc.SelectSingleNode(xPath);
XmlElement ele = ( XmlElement )node;
ele.SetAttribute( "value" , strValue);
xmlDoc.Save(strFileName);
}