Use javascript to add weather display implementation ideas and codes to the page_javascript skills

复制代码 代码如下:

<%@ page language="java" pageEncoding="UTF-8"%>


<script> <br>function load(cid) <br>{ <br>var xmlhttp; <br>if (window.XMLHttpRequest) <br>{// code for IE7 , Firefox, Chrome, Opera, Safari <br>xmlhttp=new XMLHttpRequest(); <br>} <br>else <br>{// code for IE6, IE5 <br>xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); <br>} <br>xmlhttp.open("GET","date.jsp?cid=" cid,false); <br>xmlhttp.send(); <br>var obj = eval("(" xmlhttp.responseText ")"); <br>//var obj=JSON.parse(xmlhttp.responseText); //IE8以上 <br>document.getElementById("test").innerHTML=obj.weatherinfo.city ":" obj.weatherinfo.weather1 " " obj.weatherinfo.temp1; <br>} <br></script>

天气情况

深圳天气
郴州天气

date.jsp

复制代码 代码如下:

<%@ 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);
%>