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Use ajax technology to dynamically call stock information without refreshing

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

The Code is as follows:
<Html>
<Head>
<Title> ajax test </title>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Script type = "text/javascript" src = "jquery. js"> </script>
<Script type = "text/javascript">...
Function ajaxRequest ()...{
$. Ajax (...{
Url: 'http: // response ',
Type: 'get ',
DataType: 'html ',
Timeout: 2000,
Success: function (response )...{
Var stocks = response. split (';');
For (var I = 0; I <stocks. length-1; I ++ )...{
Var content = stocks [I];
Var temp1 = content. split ('=') [0];
Var temp2 = content. split ('=') [1];
Var code = temp1.substr (temp1.length-6, 6 );
Var temp3 = temp2.replace ('"','');
Var name = temp3.split (',') [0];
Var tday_f = temp3.split (',') [1];
Var yest_f = temp3.split (',') [2];
Var curr_f = temp3.split (',') [3];
Var temp_f = curr_f-yest_f;
Certificate ('{a'{ I }.html (code );
Certificate ('{ B '{ I }.html (name );
If (curr_f> yest_f )...{
Certificate ('{c'{ I }.html ("<font color = 'red'>" + curr_f + "</font> ");
} Else if (curr_f <yest_f )...{
Certificate ('{c'{ I }.html ("<font color = 'green'>" + curr_f + "</font> ");
} Else ...{
Certificate ('{c'{ I }.html (curr_f );
}
Certificate ('mongod'{ I }.html (tday_f );
Certificate ('{e'{ I }.html (yest_f );
If (temp_f> 0 )...{
('{F'{ I }.html ("<font color = 'red'>" + temp_f.toFixed (2) + "</font> ");
Certificate ('{g'{ I }.html ("<font color = 'red'>" + (temp_f/yest_f) * 100). toFixed (2) + "</font> % ");
} Else if (temp_f <0 )...{
Certificate ('{f'{ I }.html ("<font color = 'green'>" + temp_f.toFixed (2) + "</font> ");
Certificate ('{g'{ I }.html ("<font color = 'green'>" + (temp_f/yest_f) * 100). toFixed (2) + "</font> % ");
} Else ...{
('{F'{ I }.html (temp_f.toFixed (2 ));
Certificate ('{g'{ I }.html (temp_f/yest_f) * 100). toFixed (2) + "% ");
}
('{H'{ I }.html (temp3.split (',') [4]);
('{ I '{ I }.html (temp3.split (',') [5]);
}
}
});
}
Function pageInit ()...{
Windows. setInterval ("ajaxRequest ()", 3000 );
}
</Script>
<Style>...
. Tr_cls {...}{
Height: 30px;
Font-size: 16px;
Font-family: "Times New Roman", Times, serif;
Background-color: # FFFFCC
}
</Style>
</Head>
<Body onLoad = "pageInit ();">
<Form>
<Table width = "800" border = "1" align = "center" cellpadding = "0" cellspacing = "0" bordercolor = "#000000">
<Tr bgcolor = "# 3399FF" height = "30px">
<Th scope = "col"> stock code </th>
<Th scope = "col"> stock name </th>
<Th scope = "col"> current price </th>
<Th scope = "col"> opened today </th>
<Th scope = "col"> close yesterday </th>
<Th scope = "col"> current price difference </th>
<Th scope = "col"> increase/decrease </th>
<Th scope = "col"> maximum price </th>
<Th scope = "col"> lowest price </th>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a0"> </span> </td>
<Td align = "center"> <span id = "b0"> </span> </td>
<Td align = "center"> <span id = "c0"> </span> </td>
<Td align = "center"> <span id = "d0"> </span> </td>
<Td align = "center"> <span id = "e0"> </span> </td>
<Td align = "center"> <span id = "f0"> </span> </td>
<Td align = "center"> <span id = "g0"> </span> </td>
<Td align = "center"> <span id = "h0"> </span> </td>
<Td align = "center"> <span id = "i0"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a1"> </span> </td>
<Td align = "center"> <span id = "b1"> </span> </td>
<Td align = "center"> <span id = "c1"> </span> </td>
<Td align = "center"> <span id = "d1"> </span> </td>
<Td align = "center"> <span id = "e1"> </span> </td>
<Td align = "center"> <span id = "f1"> </span> </td>
<Td align = "center"> <span id = "g1"> </span> </td>
<Td align = "center"> <span id = "h1"> </span> </td>
<Td align = "center"> <span id = "i1"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a2"> </span> </td>
<Td align = "center"> <span id = "b2"> </span> </td>
<Td align = "center"> <span id = "c2"> </span> </td>
<Td align = "center"> <span id = "d2"> </span> </td>
<Td align = "center"> <span id = "e2"> </span> </td>
<Td align = "center"> <span id = "f2"> </span> </td>
<Td align = "center"> <span id = "g2"> </span> </td>
<Td align = "center"> <span id = "h2"> </span> </td>
<Td align = "center"> <span id = "i2"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a3"> </span> </td>
<Td align = "center"> <span id = "b3"> </span> </td>
<Td align = "center"> <span id = "c3"> </span> </td>
<Td align = "center"> <span id = "d3"> </span> </td>
<Td align = "center"> <span id = "e3"> </span> </td>
<Td align = "center"> <span id = "f3"> </span> </td>
<Td align = "center"> <span id = "g3"> </span> </td>
<Td align = "center"> <span id = "h3"> </span> </td>
<Td align = "center"> <span id = "i3"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a4"> </span> </td>
<Td align = "center"> <span id = "b4"> </span> </td>
<Td align = "center"> <span id = "c4"> </span> </td>
<Td align = "center"> <span id = "d4"> </span> </td>
<Td align = "center"> <span id = "e4"> </span> </td>
<Td align = "center"> <span id = "f4"> </span> </td>
<Td align = "center"> <span id = "g4"> </span> </td>
<Td align = "center"> <span id = "h4"> </span> </td>
<Td align = "center"> <span id = "i4"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a5"> </span> </td>
<Td align = "center"> <span id = "b5"> </span> </td>
<Td align = "center"> <span id = "c5"> </span> </td>
<Td align = "center"> <span id = "d5"> </span> </td>
<Td align = "center"> <span id = "e5"> </span> </td>
<Td align = "center"> <span id = "f5"> </span> </td>
<Td align = "center"> <span id = "g5"> </span> </td>
<Td align = "center"> <span id = "h5"> </span> </td>
<Td align = "center"> <span id = "i5"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a6"> </span> </td>
<Td align = "center"> <span id = "b6"> </span> </td>
<Td align = "center"> <span id = "c6"> </span> </td>
<Td align = "center"> <span id = "d6"> </span> </td>
<Td align = "center"> <span id = "e6"> </span> </td>
<Td align = "center"> <span id = "f6"> </span> </td>
<Td align = "center"> <span id = "g6"> </span> </td>
<Td align = "center"> <span id = "h6"> </span> </td>
<Td align = "center"> <span id = "i6"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a7"> </span> </td>
<Td align = "center"> <span id = "b7"> </span> </td>
<Td align = "center"> <span id = "c7"> </span> </td>
<Td align = "center"> <span id = "d7"> </span> </td>
<Td align = "center"> <span id = "e7"> </span> </td>
<Td align = "center"> <span id = "f7"> </span> </td>
<Td align = "center"> <span id = "g7"> </span> </td>
<Td align = "center"> <span id = "h7"> </span> </td>
<Td align = "center"> <span id = "i7"> </span> </td>
</Tr>
<Tr class = "tr_cls">
<Td align = "center"> <span id = "a8"> </span> </td>
<Td align = "center"> <span id = "b8"> </span> </td>
<Td align = "center"> <span id = "c8"> </span> </td>
<Td align = "center"> <span id = "d8"> </span> </td>
<Td align = "center"> <span id = "e8"> </span> </td>
<Td align = "center"> <span id = "f8"> </span> </td>
<Td align = "center"> <span id = "g8"> </span> </td>
<Td align = "center"> <span id = "h8"> </span> </td>
<Td align = "center"> <span id = "i8"> </span> </td>
</Tr>
</Table>
</Form>
</Body>
</Html>
 
Use prototype to replace the script code.
The Code is as follows:
<Script type = "text/javascript" src = "prototype. js"> </script>
<Script type = "text/javascript">...
Function ajaxRequest ()...{
Var myAjax = new Ajax. Request (
'Http: // response ',
...{
Method: 'get ',
OnComplete: setData
}
);
}
Function setData (response )...{
Var contents = response. responseText;
Var stocks = contents. split (';');
For (var I = 0; I <stocks. length-1; I ++ )...{
Var content = stocks [I];
Var temp1 = content. split ('=') [0];
Var temp2 = content. split ('=') [1];
Var code = temp1.substr (temp1.length-6, 6 );
Var temp3 = temp2.replace ('"','');
Var name = temp3.split (',') [0];
Var tday_f = temp3.split (',') [1];
Var yest_f = temp3.split (',') [2];
Var curr_f = temp3.split (',') [3];
Var temp_f = curr_f-yest_f;
$ ('A' + I). innerHTML = code;
$ ('B' + I). innerHTML = name;
$ ('C' + I). innerHTML = curr_f;
If (curr_f> yest_f )...{
$ ('C' + I). innerHTML = "<font color = 'red'>" + curr_f + "</font> ";
} Else if (curr_f <yest_f )...{
$ ('C' + I). innerHTML = "<font color = 'green'>" + curr_f + "</font> ";
} Else ...{
$ ('C' + I). innerHTML = curr_f;
}
$ ('D' + I). innerHTML = tday_f;
$ ('E' + I). innerHTML = yest_f;
If (temp_f> 0 )...{
$ ('F' + I). innerHTML = "<font color = 'red'>" + temp_f.toFixed (2) + "</font> ";
$ ('G' + I ). innerHTML = "<font color = 'red'>" + (temp_f/yest_f) * 100 ). toFixed (2) + "</font> % ";
} Else if (temp_f <0 )...{
$ ('F' + I). innerHTML = "<font color = 'green'>" + temp_f.toFixed (2) + "</font> ";
$ ('G' + I ). innerHTML = "<font color = 'green'>" + (temp_f/yest_f) * 100 ). toFixed (2) + "</font> % ";
} Else ...{
$ ('F' + I). innerHTML = temp_f.toFixed (2 );
$ ('G' + I). innerHTML = (temp_f/yest_f) * 100). toFixed (2) + "% ";
}
$ ('H' + I). innerHTML = temp3.split (',') [4];
$ ('I' + I). innerHTML = temp3.split (',') [5];
}
}
Function pageInit ()...{
Windows. setInterval ("ajaxRequest ()", 3000 );
}
</Script>

Of course, the page can be automatically generated by the script, as well as the dynamic addition and deletion of Stock Information on the page, and so on, just wait for future modification.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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