如何POST登入，已经能在FRAME显示抓取的HTML代码

----抓取的代码是
<form method="post" name="login" id="loginform" class="s_clear" onsubmit="pwdclear = 1;ajaxpost('loginform', 'returnmessage', 'returnmessage', 'onerror');return false;" action="logging.php?action=login&amp;loginsubmit=yes">
<input type="hidden" name="formhash" value="953dd273" />
<input type="hidden" name="referer" value="" />
<div class="loginform nolabelform">
<div class="float_typeid selectinput" id="account">
<select name="loginfield" style="float:left;width:50px;" id="loginfield">
<option value="username">用户名</option>
<option value="uid">UID</option>
<option value="email">Email</option>
</select>
<input type="text" name="username" autocomplete="off" size="36" class="txt" tabindex="1" value="" />
</div>
<p class="selectinput loginpsw">
<label for="password3">密　码　：</label>
<input type="password" id="password3" name="password" onfocus="clearpwd()" onkeypress="detectCapsLock(event, this)" size="36" class="txt" tabindex="1" />
</p>
 
<div id="seccodelayer"></div>
 
<div class="float_typeid selecttype">
<select id="questionid" name="questionid" change="if($('questionid').value > 0) {$('answer').style.display='';} else {$('answer').style.display='none';}">
<option value="0">安全提问</option>
<option value="1">母亲的名字</option>
<option value="2">爷爷的名字</option>
<option value="3">父亲出生的城市</option>
<option value="4">您其中一位老师的名字</option>
<option value="5">您个人计算机的型号</option>
<option value="6">您最喜欢的餐馆名称</option>
<option value="7">驾驶执照的最后四位数字</option>
</select>
</div>
<p><input type="text" name="answer" id="answer" style="display:none" autocomplete="off" size="36" class="txt" tabindex="1" /></p>
</div>
<div class="logininfo multinfo">
<h4>没有帐号？<a href="one.php" onclick="hideWindow('login');showWindow('register', this.href);return false;" title="注册帐号">注册</a></h4>
<p><a href="javascript:;" onclick="display('layer_login');display('layer_lostpw');" title="找回密码">找回密码</a></p>
<p><a href="javascript:;" onclick="ajaxget('member.php?action=clearcookies&formhash=953dd273', 'returnmessage', 'returnmessage');return false;" title="清除痕迹">清除痕迹</a></p>
</div>
<p class="fsubmit s_clear">
<button class="submit" type="submit" name="loginsubmit" value="true" tabindex="1">登录</button>
<input type="checkbox" class="checkbox" name="cookietime" id="cookietime" tabindex="1" value="2592000"  /> <label for="cookietime">记住我的登录状态</label>
</p>
</form>
------------
我的 CLASS POST 代码如下，可只能显示代码,无法登入,
public class TestPost {     
   
  public static void testPost() throws IOException {     
   command=login";  
String surl = " http://www.tosese.com/bbs/member.php?mod=logging&action=login";
     URL url = new URL(surl);   
     URLConnection connection = url.openConnection();   
     connection.setDoOutput(true);  
     OutputStreamWriter out = new OutputStreamWriter(connection .getOutputStream(), "UTF-8");     
      //out.write("user_account=admin&user_password=******");    
      out.write("username=shop&password3=shop");      
       // remember to clean up     
      out.flush();     
       out.close();     

抓包用HTTP协议发送   VC我是这么做的

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