根据IP获取当地天气预报的实现
2008-12-18 10:21
393 查看
<script type="text/javascript"><!--
google_ad_client = "pub-4490194096475053";
/* 内容页,300x250,第一屏 */
google_ad_slot = "3685991503";
google_ad_width = 300;
google_ad_height = 250;
// --></script>
<script src="http://pagead2.googlesyndication.com/pagead/show_ads.js" type="text/javascript"></script>
访问www.163.com,首页的栏目里有当地的天气预报。可以猜想,这里的天气预报,应该是根据来访者的ip判断其所在地给出当地的天气情况。问了一些朋友,也证实了这一点。项目里也需要天气预报这个小栏目,同事做过一个(从其他站点抓取的),不过实现不了根据IP显示当地的天气情况,需要用户自行选择,而且抓取的站点属于小站….其可靠性值得怀疑。。所以就萌生了抓取网易的天气预报的想法。。。对页面进行分析
发现显示天气预报的区域是一个IFrame,IFrame里嵌入了如下链接http://news.163.com/util/position1.html, 对这个地址访问直接跳转到另外一个链接http://news.163.com/weather/news/qx1/56294.html,此链接显示了天气情况,如图:
由此可以推测http://news.163.com/util/position1.html,是在根据来访者的IP判断所属区域,然后返回一个该地区所对应的区位码,如: 56294代表成都。如何让网易来帮我们的站点来访者判断所属区域,并给出天气情况,并显示在自己的站点页面上呢?还得继续分析。。因为http://news.163.com/util/position1.html,此链接一访问就转向到天气情况的链接,而无法查看源码。便猜想。。此页面肯定有些东西。。无奈之下。。WebRequest一下,出现了如下代码:
以下是引用片段:
1
2var city = new Array("安徽","黑龙江","山东","北京","湖北","山西","福建","湖南","陕西","甘肃","吉林","上海","广东","江苏","四川","广西","江西","天津","贵州","辽宁","西藏","海南","内蒙古","新疆","河北","宁夏","云南","河南","青海","浙江","重庆");
3var weaths = new Array('58321','50953','54823','54511','57494','53772','59134','57679','57036','52889','54172','58367','59287','58238','56294','59431','58606','54527','57816','54342','55591','52856','53463','51463','53698','53614','56778','57083','52866','58457','57516');
4
5function getCookieVal (offset) {
6 var endstr = document.cookie.indexOf (";", offset);
7 if (endstr == -1)
8 endstr = document.cookie.length;
9 return unescape(document.cookie.substring(offset, endstr));
10}
11function GetCookie (name) {
12 var arg = name + "=";
13 var alen = arg.length;
14 var clen = document.cookie.length;
15 var i = 0;
16 while (i ");
47 }
48}
49
50
51if (!NTES_WeatherAddr){
52 NTES_WeatherAddr=getCityWeatherID(loc);
53}
54window.location.href="http://news.163.com/weather/news/qx1/"+NTES_WeatherAddr+".html";
55
56
57
上面的这段js实现了对来访者IP判断并给出了天气预报结果的链接。Js里的此链接: http://202.108.39.152/ipquery,起到的是判断用户所在地的作用,返回的是来访者所在地省份。分析到此,想要的结果差不多就出来了… 在客户端调用这段js获得天气预报结果的链接地址,然后交给服务端来处理。(为什么要交给后台处理,而不是直接显示呢?)因为直接得出的链接页面上,有多余的链接,还应用了样式(如图一),不便为自己所用,所以得处理掉。客户端调用服务端的方法很多,最初使用了Ajax框架Anthem,实现了过后,觉得有点杀鸡用牛刀的感觉。。无聊之余。。就又用CallBack实现了一次。。感觉恰到好处。。后来又发现。。__doPostBack也可以实现客户端调用服务端方法。。看来实现这么一个功能还真是简单。。。
好了到此就实现了,自己想要的结果:(感觉有点遗憾的是只给出了省会城市的天气预报)
前台页面代码Defaul.aspx:
以下是引用片段:
1
2
3
4
5
6
7var city = new Array("安徽","黑龙江","山东","北京","湖北","山西","福建","湖南","陕西","甘肃","吉林","上海","广东","江苏","四川","广西","江西","天津","贵州","辽宁","西藏","海南","内蒙古","新疆","河北","宁夏","云南","河南","青海","浙江","重庆");
8var weaths = new Array('58321','50953','54823','54511','57494','53772','59134','57679','57036','52889','54172','58367','59287','58238','56294','59431','58606','54527','57816','54342','55591','52856','53463','51463','53698','53614','56778','57083','52866','58457','57516');
9
10var NTES_WeatherAddr = GetCookie("NTES_WeatherAddr");
11if (!NTES_WeatherAddr){
12 var loc = GetCookie("theaddr");
13 if(!loc){
14 document.write("");
15 }
16}
17
18function getCookieVal (offset) {
19 var endstr = document.cookie.indexOf (";", offset);
20 if (endstr == -1)
21 endstr = document.cookie.length;
22 return unescape(document.cookie.substring(offset, endstr));
23}
24
25function GetCookie (name) {
26 var arg = name + "=";
27 var alen = arg.length;
28 var clen = document.cookie.length;
29 var i = 0;
30 while (i ;
91}
92function outPutResult(result)
93{
94 document.getElementById("result").innerHTML = result;
95
96}
97
98
99
100
101
102
103
104
105
106
后台代码Default.cs:
以下是引用片段:
1using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.IO;
9using System.Net;
10using Anthem;
11
12public partial class _Default : System.Web.UI.Page, ICallbackEventHandler
13{
14 protected void Page_Load(object sender, EventArgs e)
15 {
16 Anthem.Manager.Register(this);
17
18 }
19
20 回调的固定格式#region 回调的固定格式
21 public string str_content;
22
23 public void RaiseCallbackEvent(string the_string)
24 {
25 str_content = the_string;
26 }
27
28 /**////
29 /// 回调,解析客户端的参数
30 ///
31 ///
32 public string GetCallbackResult()
33 {
34
35 string[] parts = str_content.Split('|');
36 object[] theArgList = new object[parts.Length - 1];
37 for (int int_index = 1; int_index
45 /// Anthem方式,解析获取的url的页面内容
46 ///
47 /// url
48 /// 解析结果
49 [Anthem.Method]
50 public string ShowWeatherByAnthem()
51 {
52
53 WebRequest request = WebRequest.Create(Text1.Value);
54 request.Credentials = CredentialCache.DefaultCredentials;
55 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
56 Stream dataStream = response.GetResponseStream();
57 StreamReader reader = new StreamReader(dataStream, System.Text.Encoding.Default);
58 string str = reader.ReadToEnd();
59 return str.Substring(220);
60
61 }
62 //
63 //回调方式,解析获取的url的页面内容
64 //
65 //
66 //
67 public string ShowWeatherByCall(string url)
68 {
69 WebRequest request = WebRequest.Create(url);
70 request.Credentials = CredentialCache.DefaultCredentials;
71 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
72 Stream dataStream = response.GetResponseStream();
73 StreamReader reader = new StreamReader(dataStream, System.Text.Encoding.Default);
74 string str = reader.ReadToEnd();
75 return str.Substring(220);
76
77 }
78 #endregion
79}
80
google_ad_client = "pub-4490194096475053";
/* 内容页,300x250,第一屏 */
google_ad_slot = "3685991503";
google_ad_width = 300;
google_ad_height = 250;
// --></script>
<script src="http://pagead2.googlesyndication.com/pagead/show_ads.js" type="text/javascript"></script>
访问www.163.com,首页的栏目里有当地的天气预报。可以猜想,这里的天气预报,应该是根据来访者的ip判断其所在地给出当地的天气情况。问了一些朋友,也证实了这一点。项目里也需要天气预报这个小栏目,同事做过一个(从其他站点抓取的),不过实现不了根据IP显示当地的天气情况,需要用户自行选择,而且抓取的站点属于小站….其可靠性值得怀疑。。所以就萌生了抓取网易的天气预报的想法。。。对页面进行分析
发现显示天气预报的区域是一个IFrame,IFrame里嵌入了如下链接http://news.163.com/util/position1.html, 对这个地址访问直接跳转到另外一个链接http://news.163.com/weather/news/qx1/56294.html,此链接显示了天气情况,如图:
由此可以推测http://news.163.com/util/position1.html,是在根据来访者的IP判断所属区域,然后返回一个该地区所对应的区位码,如: 56294代表成都。如何让网易来帮我们的站点来访者判断所属区域,并给出天气情况,并显示在自己的站点页面上呢?还得继续分析。。因为http://news.163.com/util/position1.html,此链接一访问就转向到天气情况的链接,而无法查看源码。便猜想。。此页面肯定有些东西。。无奈之下。。WebRequest一下,出现了如下代码:
以下是引用片段:
1
2var city = new Array("安徽","黑龙江","山东","北京","湖北","山西","福建","湖南","陕西","甘肃","吉林","上海","广东","江苏","四川","广西","江西","天津","贵州","辽宁","西藏","海南","内蒙古","新疆","河北","宁夏","云南","河南","青海","浙江","重庆");
3var weaths = new Array('58321','50953','54823','54511','57494','53772','59134','57679','57036','52889','54172','58367','59287','58238','56294','59431','58606','54527','57816','54342','55591','52856','53463','51463','53698','53614','56778','57083','52866','58457','57516');
4
5function getCookieVal (offset) {
6 var endstr = document.cookie.indexOf (";", offset);
7 if (endstr == -1)
8 endstr = document.cookie.length;
9 return unescape(document.cookie.substring(offset, endstr));
10}
11function GetCookie (name) {
12 var arg = name + "=";
13 var alen = arg.length;
14 var clen = document.cookie.length;
15 var i = 0;
16 while (i ");
47 }
48}
49
50
51if (!NTES_WeatherAddr){
52 NTES_WeatherAddr=getCityWeatherID(loc);
53}
54window.location.href="http://news.163.com/weather/news/qx1/"+NTES_WeatherAddr+".html";
55
56
57
上面的这段js实现了对来访者IP判断并给出了天气预报结果的链接。Js里的此链接: http://202.108.39.152/ipquery,起到的是判断用户所在地的作用,返回的是来访者所在地省份。分析到此,想要的结果差不多就出来了… 在客户端调用这段js获得天气预报结果的链接地址,然后交给服务端来处理。(为什么要交给后台处理,而不是直接显示呢?)因为直接得出的链接页面上,有多余的链接,还应用了样式(如图一),不便为自己所用,所以得处理掉。客户端调用服务端的方法很多,最初使用了Ajax框架Anthem,实现了过后,觉得有点杀鸡用牛刀的感觉。。无聊之余。。就又用CallBack实现了一次。。感觉恰到好处。。后来又发现。。__doPostBack也可以实现客户端调用服务端方法。。看来实现这么一个功能还真是简单。。。
好了到此就实现了,自己想要的结果:(感觉有点遗憾的是只给出了省会城市的天气预报)
前台页面代码Defaul.aspx:
以下是引用片段:
1
2
3
4
5
6
7var city = new Array("安徽","黑龙江","山东","北京","湖北","山西","福建","湖南","陕西","甘肃","吉林","上海","广东","江苏","四川","广西","江西","天津","贵州","辽宁","西藏","海南","内蒙古","新疆","河北","宁夏","云南","河南","青海","浙江","重庆");
8var weaths = new Array('58321','50953','54823','54511','57494','53772','59134','57679','57036','52889','54172','58367','59287','58238','56294','59431','58606','54527','57816','54342','55591','52856','53463','51463','53698','53614','56778','57083','52866','58457','57516');
9
10var NTES_WeatherAddr = GetCookie("NTES_WeatherAddr");
11if (!NTES_WeatherAddr){
12 var loc = GetCookie("theaddr");
13 if(!loc){
14 document.write("");
15 }
16}
17
18function getCookieVal (offset) {
19 var endstr = document.cookie.indexOf (";", offset);
20 if (endstr == -1)
21 endstr = document.cookie.length;
22 return unescape(document.cookie.substring(offset, endstr));
23}
24
25function GetCookie (name) {
26 var arg = name + "=";
27 var alen = arg.length;
28 var clen = document.cookie.length;
29 var i = 0;
30 while (i ;
91}
92function outPutResult(result)
93{
94 document.getElementById("result").innerHTML = result;
95
96}
97
98
99
100
101
102
103
104
105
106
后台代码Default.cs:
以下是引用片段:
1using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.IO;
9using System.Net;
10using Anthem;
11
12public partial class _Default : System.Web.UI.Page, ICallbackEventHandler
13{
14 protected void Page_Load(object sender, EventArgs e)
15 {
16 Anthem.Manager.Register(this);
17
18 }
19
20 回调的固定格式#region 回调的固定格式
21 public string str_content;
22
23 public void RaiseCallbackEvent(string the_string)
24 {
25 str_content = the_string;
26 }
27
28 /**////
29 /// 回调,解析客户端的参数
30 ///
31 ///
32 public string GetCallbackResult()
33 {
34
35 string[] parts = str_content.Split('|');
36 object[] theArgList = new object[parts.Length - 1];
37 for (int int_index = 1; int_index
45 /// Anthem方式,解析获取的url的页面内容
46 ///
47 /// url
48 /// 解析结果
49 [Anthem.Method]
50 public string ShowWeatherByAnthem()
51 {
52
53 WebRequest request = WebRequest.Create(Text1.Value);
54 request.Credentials = CredentialCache.DefaultCredentials;
55 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
56 Stream dataStream = response.GetResponseStream();
57 StreamReader reader = new StreamReader(dataStream, System.Text.Encoding.Default);
58 string str = reader.ReadToEnd();
59 return str.Substring(220);
60
61 }
62 //
63 //回调方式,解析获取的url的页面内容
64 //
65 //
66 //
67 public string ShowWeatherByCall(string url)
68 {
69 WebRequest request = WebRequest.Create(url);
70 request.Credentials = CredentialCache.DefaultCredentials;
71 HttpWebResponse response = (HttpWebResponse)request.GetResponse();
72 Stream dataStream = response.GetResponseStream();
73 StreamReader reader = new StreamReader(dataStream, System.Text.Encoding.Default);
74 string str = reader.ReadToEnd();
75 return str.Substring(220);
76
77 }
78 #endregion
79}
80
相关文章推荐
- 根据IP获取当地天气预报的实现
- 根据IP获取当地天气预报的实现
- 根据IP获取当地天气预报的实现
- 根据IP获取当地天气预报的实现(源码)
- 根据IP获取当地天气预报的实现
- 解析来访IP获取163天气显示当地天气预报的实现(源码)
- 用asp.net实现根据IP获取当地天气预报
- html 根据ip获取当地天气预报
- 根据ip获取当地天气预告的实现asp.net实例
- 如何根据IP自动获取当地的天气预报信息
- 根据ip获得当地天气预报的实现
- 用asp.net实现根据IP获取当地天气预报
- asp.net实现根据IP获取当地天气预报
- PHP获取IP地址及根据IP判断城市实现城市切换或跳转
- 纯真IP库实现根据IP获取地理位置
- C#实现解析百度天气数据,Rss解析百度新闻以及根据IP获取所在城市的方法
- 根据IP获取当地天气
- ASP.NET实现根据IP获取省市地址的方法
- Java 实现根据 IP 地址获取地理位置的代码分享