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Detailed example of implementing search toolbar through javascript

巴扎黑Original: 2017-05-22 11:46:091665browse

1: Final effect
Detailed example of implementing search toolbar through javascript

2: Principle

If you search for "China" in Yahoo, Then you will get a string of addresses like this in the browser's address bar: http://search.cn.yahoo.com/search?ei=gbk&fr=fp-tab-web-ycn&meta=vl%
3Dlang_zh-CN%26vl %3Dlang_zh-TW&pid=ysearch&source=ysearch_www_hp_button
&p=%D6%D0%B9%FA&Submit=
It looks a bit confusing, please simplify it: http://search.cn.yahoo.com/search?&p= %D6%D0%B9%FA
This is the key. &p=%D6%D0%B9%FA is the keyword parameter of the search, and %D6%D0%B9%FA is the
of "China" Url encoding. OK, as long as we can construct such encoding.

Three: URL encoding
The encodeURIComponent() function of JavaScript can complete the encoding work.
For example, in the above example, we can use "http://search.cn.yahoo.com/search?&p="+encodeURIComponent("China"); to complete.

Four: Code
(Click the plus sign to expand)

The code is as follows:

 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Search.aspx.cs" Inherits="Search" %> 
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
 <html xmlns="http://www.w3.org/1999/xhtml" > 
 <head runat="server"> 
     <title>Search</title> 
 <script language="javascript" type="text/javascript"> 
 // <!CDATA[ 
 function GetEncodeOfKey() 
 { 
     var strKey = window.document.getElementById("Text_Key").value;       
     return  encodeURIComponent(strKey);  
 } 
 function GetUrl(site) 
 { 
     var encode=GetEncodeOfKey(); 
     //web 
     if(document.getElementById("RadioButtonList_Kind_0").checked) 
     { 
         if(site=="google") 
         { 
             return "http://www.google.com/search?q="+encode+"&ei=UTF-8"; 
         } 
         else 
         { 
             return "http://search.yahoo.com/search?p="+encode+"&ei=UTF-8"; 
         } 
     } 
     //mp3 
     else if(document.getElementById("RadioButtonList_Kind_1").checked) 
     { 
         if(site=="google") 
         { 
             return "http://www.google.com/search?q="+encode+" mp3"+"&ei=UTF-8"; 
         } 
         else 
         { 
             return "http://audio.search.yahoo.com/search/audio?&p="+encode+"&ei=UTF-8"; 
         } 
     } 
     //img 
     else if(document.getElementById("RadioButtonList_Kind_2").checked) 
     { 
         if(site=="google") 
         { 
             return "http://images.google.com/images?q="+encode+"&ei=UTF-8"; 
         } 
         else 
         { 
             return "http://images.search.yahoo.com/search/images?p="+encode+"&ei=UTF-8"; 
         } 
     } 
     else 
     { 
         //alert("err"); 
     } 
      
 } 
 function Button_Google_onclick()  
 { 
     window.open(GetUrl("google")); 
 } 
 function Button_Yahoo_onclick()  
 { 
     window.open(GetUrl("yahoo")); 
 } 
 // ]]> 
 </script> 
 </head> 
 <body> 
     <form id="form1" runat="server"> 
     <p> 
         <br /> 
         <br /> 
         <strong><span style="font-size: 24pt; color: #336633">Search<br /> 
         </span></strong> 
     </p> 
     <hr style="position: relative" /> 
         <br /> 
         <table style="left: 0px; position: relative; top: 0px"> 
             <tr> 
                 <td style="width: 31px; height: 21px"> 
                     <span style="font-family: Terminal">Key</span></td> 
                 <td style="width: 253px; height: 21px"> 
                     <input id="Text_Key" style="width: 248px; position: relative" type="text" /></td> 
                 <td style="width: 175px; height: 21px"> 
                     <asp:RadioButtonList ID="RadioButtonList_Kind" runat="server" RepeatDirection="Horizontal" 
                         Style="position: relative" Font-Names="terminal"> 
                         <asp:ListItem Selected="True">Web</asp:ListItem> 
                         <asp:ListItem>Mp3</asp:ListItem> 
                         <asp:ListItem>Image</asp:ListItem> 
                     </asp:RadioButtonList></td> 
             </tr> 
             <tr> 
                 <td style="width: 31px"> 
                 </td> 
                 <td colspan="2"> 
                     <input id="Button_Google" style="width: 80px; position: relative" type="button" value="Google" onclick="return Button_Google_onclick()" /> 
                               
                     <input id="Button_Yahoo" style="left: -29px; width: 104px; position: relative" type="button" 
                         value="Yahoo!" onclick="return Button_Yahoo_onclick()" /></td> 
         </table> 
         <br /> 
         <hr style="position: relative" /> 
         <asp:HyperLink ID="HyperLink_Home" runat="server" NavigateUrl="~/Default.aspx" Style="position: relative">Home</asp:HyperLink></form> 
 </body> 
 </html>

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