求大神解答！！！Swift WebView 页面被放大，无法正确显示网页尺寸~~~

Old-Summer 2015-06-08 11:12:48

我就用swift 做了一个最简单的webview，加载的网页大小是640*960px的，模拟器也调成了iph 4s的模式，显示网页却被放大，刚开始接触不知道怎么改，过两天有急用，望大神帮帮忙！感激不尽！！！
ViewController：



//

//  ViewController.swift

//  Fuer

//

//  Created by Summer. on 15/6/8.

//  Copyright (c) 2015年 Summer. All rights reserved.

//



import UIKit



class ViewController: UIViewController {



    

    @IBOutlet weak var wv: UIWebView!

    

       override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view, typically from a nib.

               wv.loadRequest(NSURLRequest(URL: NSURL(string: "http://127.0.0.1:8080/fuwuwaibao/mobile.jsp")!))

        

        

    }



    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }



   



}

<!DOCTYPE html>

<html>

<head>

	<title></title>

	<meta http-equiv="content-type" content="text/html; charset=utf-8">

	<style type="text/css">

		*{

			margin: 0;

			padding: 0;

		}

		body{

			margin: 0;

			padding: 0;

			width:640px;

			height:960px;

		}

		.main {

			width:640px;

			height:960px;

			overflow: hidden;

			background-image: url(bg.jpg);

		}

		ul.message-box {

		  width: 640px;

		  height: 600px;

		  

		  margin-top: 200px;

		}

		li.message-item {

		  width: 640px;

		  height: auto;

		  padding-left: 55px;

		  padding-right: 55px;

		  margin-top: 20px;

		  text-align: left;

		  font-size: 16px;

		  color: #999;

		}

	</style>

	



	<script type="text/javascript" src="jquery.js"></script>

	<script type="text/javascript">

		$().ready(function(){

			setInterval(function(){

				$.getJSON("GetMsgServlet?flag=mo",function(data){

					$(".message-box").prepend(

						"<li class='message-item'><span class='time'>"+

						data.message.msg_time+

						"  </span>"+

						data.message.msg_company+

						"</li>");

				});



			},1000);

		});

	</script>





</head>

<body>

	<div class="main">

		<ul class="message-box">

			<li class="message-item"><span class="time">12:45  </span>菊花实业集团回复了你的简历</li>

			<li class="message-item"><span class="time">12:45  </span>菊花实业集团回复了你的简历</li>

			<li class="message-item"><span class="time">12:45  </span>菊花实业集团回复了你的简历</li>



		</ul>

	</div>

</body>

</html>