网页自动填表急求

redrainyu 2011-04-11 05:30:28

这是jj登陆界面的主要源代码
<div class="TisW">

</div>

<ul class="lList">

<li class="li1">

<b>用户名：</b><input type="text" name="username" maxlength="19" value="" />

</li>

<li class="li2">

<b>密　码：</b><input type="password" name="password" maxlength="19" />

</li>

<li class="But"><button type="submit"> </button></li>

</ul>

<ul class="forget">
其中button按钮是button方式的，我现在要实现自动登陆，我的代码如下
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using SHDocVw;
using mshtml;
namespace WebExplorer
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)

}
SHDocVw.InternetExplorer IE = new InternetExplorer();
IE.Visible = true;
string URL = "http://jj.cn/user/login.php";
object nullArg = null;
IE.Navigate(URL, ref nullArg, ref nullArg, ref nullArg, ref nullArg);

System.Threading.Thread.Sleep(3000);
//得到IE的文档对象模型
mshtml.IHTMLDocument2 DOM = (mshtml.IHTMLDocument2)IE.Document;
//声明用户名
mshtml.IHTMLInputTextElement txtUserName = (mshtml.IHTMLInputTextElement)DOM.all.item("username", null);
txtUserName.value = "redrainyu";
//声明密码
mshtml.IHTMLInputTextElement txtPwd = (mshtml.IHTMLInputTextElement)DOM.all.item("password", null);
txtPwd.value = "mima";
//声明登录
mshtml.HTMLInputElement btnLogin = (mshtml.HTMLInputElement)DOM.all.item("null", 0);
System.Threading.Thread.Sleep(1000);
btnLogin.click();

catch (Exception ex)
{
}
}

}
}
运行程序，可以在网页打开后自动输入用户名和密码
但是就不能自动点击登陆按钮了，到地是哪个地方的问题，请大神们说说啊
我现在既求。

...全文