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用javascript為頁(yè)面添加天氣顯示實(shí)現(xiàn)思路及代碼

 更新時(shí)間：2013年12月02日 17:15:35   作者：  
為頁(yè)面添加天氣顯示的方法有很多，在本文為大家介紹下使用js來(lái)輕松實(shí)現(xiàn)，具體的代碼如下，感興趣的朋友不要錯(cuò)過(guò)
復(fù)制代碼 代碼如下:

<%@ page language="java" pageEncoding="UTF-8"%>
<html>
<head>
<script>
function load(cid)
{
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.open("GET","date.jsp?cid="+cid,false);
xmlhttp.send();
var obj = eval("("+ xmlhttp.responseText+")");
//var obj=JSON.parse(xmlhttp.responseText); //IE8以上
document.getElementById("test").innerHTML=obj.weatherinfo.city+":"+obj.weatherinfo.weather1+" "+obj.weatherinfo.temp1;
}
</script>
</head>
<body>
<p id="test">天氣情況</p>
<button id="btn1" onClick=load("101280601")>深圳天氣</button>
<button id="btn2" onClick=load("101250501")>郴州天氣</button>
<!--
城市id獲?。篽ttp://blog.csdn.net/zgyulongfei/article/details/7956118
-->
</body>
</html>

date.jsp
復(fù)制代碼 代碼如下:

<%@ page language="java" import="java.net.*,java.io.*" pageEncoding="utf-8"%>
<%
String cid = request.getParameter("cid");
URL url = new URL("http://m.weather.com.cn/data/"+cid+".html");
HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
httpConn.connect();
InputStream cin = httpConn.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(cin,"UTF-8"));
StringBuffer sb = new StringBuffer();
String rl = null;
while ((rl = reader.readLine()) != null)
sb.append(rl);
out.println(sb);
%>

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