Mechanize login problem

Ruby
1

require ‘rubygems’
require ‘mechanize’
agent = WWW::Mechanize.new
agent.user_agent_alias = ‘Windows IE 7’
page = agent.post(“http://sso.chinaunix.net/Login?”)
form = page.forms[0]
form[‘login_name’] = ‘luofeiyu’
form[‘password’] = ‘qwerty’
page = agent.submit(form)
page.save(“/home/pt/web”)

irb(main):166:0> form = page.forms[0]
=> nil
irb(main):167:0> form[‘login_name’] = ‘luofeiyu’
NoMethodError: undefined method []=' for nil:NilClass from (irb):167 from :0 irb(main):168:0> form['password'] = 'qwerty' NoMethodError: undefined method []=’ for nil:NilClass
from (irb):168
from :0
irb(main):169:0> page = agent.submit(form)
ArgumentError: wrong number of arguments (0 for 1)
from /var/lib/gems/1.8/gems/mechanize-1.0.0/lib/mechanize.rb:368:in
method' from /var/lib/gems/1.8/gems/mechanize-1.0.0/lib/mechanize.rb:368:in submit’
from (irb):169
from :0
would you mind to tell me what wrong is?

2

On Sun, Jun 20, 2010 at 11:45:31AM +0900, Pen T. wrote:

irb(main):166:0> form = page.forms[0]
=> nil

This line ^^^^^

This page appears to have no forms, so it returned nil.

3

view-page source ,you can see :

  <p class="title">欢迎您<br />已经拥有ChinaUnix帐户</p>
  <p class="mt8">
    用户名：<input type="text" id="login_name" name="login_name"

size=“20” maxlength=“30” class=“inputText1 {required:true,minLength:2}”
value="" />



密  ç ï¼š

  </p>
  <p class="mt8">
    <input type="checkbox" value="30" id="furmcookie"

name=“furmcookie”>è®°ä½æˆ‘çš„å¯†ç 





还不是ChinaUnix会员？立即免费注册！

  <p class="mt12 tr"><input type="button" value="注 册"

class=“button1”
onclick=“javascript:window.location.href=’/Register’”/>

  <dl class="lh18 mt10">
    <dt class="bold">为什么要注册？</dt>
    <dd>
            您只有注册成为ChinaUnix会员，才可以登录论坛、博客发言交流，并可以享用ChinaUnix的各项服务。
            </dd>
  </dl>
</div>



<div class="forget">

  <p class="title">å¿˜è®°å¯†ç æˆ–ID</p>
  <p class="con">å¦‚æžœä½ å¿˜è®°äº†ä½ çš„å¯†ç ï¼Œè¯·åœ¨è¿™é‡Œæ‰¾å›žå¯†ç ã€‚</p>

  <p class="tr mt8"><input type="button" value="æ‰¾å›žå¯†ç "

class=“button1”
onclick=“javascript:window.location.href=’/ForgotPassword’”/>

</div>

</form>

there is form in it.