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Implementation of json page paging instance code using javascript

Source: Internet
Author: User
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In the afternoon, a friend asked me how to paging the json data.

The following code is used:
Copy codeThe Code is as follows:
<! 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>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> untitled document </title>
<Script>
Var a = {"code": 1, "list": [{"category1_id": "1", "category1_name": "\ u9152 \ u6c34 \ u996e \ u6599 ", "category1_intro": "\ u6e05 \ u51c9 \ u53ef \ u53e3 \ u7684 \ u9152 \ u6c34 \ u996e \ u6599", "category1_images": "http: \ // www.songcuomen.com \/attachments \/productType \/2014-01 \/10 \/21_1389343628.jpg "}, {" category1_id ":" 2 "," category1_name ": "\ u7c73 \ u9762 \ u7cae \ u6cb9", "category1_intro": "\ u5bb6 \ u5ead \ u5fc5 \ u5907", "category1_images": "http: \ // www.songcuomen.com \/attachments \/productType \/2014-01 \/10 \/21_13893420.5.jpg "}, {" category1_id ":" 3 "," category1_name ": "\ u7f8e \ u5bb9 \ u6d17 \ u62a4", "category1_intro": "\ u62a4 \ u80a4 \ u5fc5 \ u5907", "category1_images": "http: \ // www.songcuomen.com \/attachments \/productType \/2014-01 \/10 \/21_1389343935.jpg "}, {" category1_id ":" 4 "," category1_name ": "\ u6e05 \ u6d01 \ u6d17 \ u6da4", "average": "\ Users \ u60a8 \ Users \ u51c0 \ u7684 \ u751f \ u6d3b \ u73af \ u5883 ", "categorycategory images": "http: \ // www.songcuomen.com \/attachments \/productType \/2014-01 \/10 \/21_1389343986.jpg"}, {"category1_id": "5 ", "category1_name": "\ u751f \ u6d3b \ u7528 \ u54c1", "category1_intro": "\ u5bb6 \ u5ead \ u5fc5 \ u5907", "category1_images": "http: \ // www.songcuomen.com \/attachments \/productType \/2014-01 \/10 \/21_1389344445.jpg "}, {" category1_id ":" 6 "," category1_name ": "\ u4f11 \ u95f2 \ u98df \ u54c1", "category1_intro": "\ u597d \ u5403 \ u7f8e \ u5473", "category1_images": "http: \ // www.songcuomen.com \/attachments \/productType \/2014-01 \/10 \/21_1389344494.jpg "}]};
Var y = 1; // indicates the number of pages.
Var t = 2; // indicates the actual number of data entries on each page.
Var z = a ["list"]. length;
Var zy = Math. ceil (z/t );
Window. onload = function (){
Fanye (0 );
}
Function fanye (f)
{
If (y = 1 & f =-1)
{
Alert ('already the first page ');
F = 0;
}
If (y = zy & f = 1)
{
Alert ('the last page ');
F = 0;
}

Var otbod = document. getElementById ('table'). tBodies [0];
Var s = otbod. rows. length;
For (I = 0; I <s; I ++)
{

Otbod. removeChild (otbod. rows [0]);
}
Y + = f;
Var q = (Y-1) * 2; // page number-1 multiplied by the actual number of results per page for this page starting from the number
For (var I = 1; I <3; I ++)
{

Var otr = document. createElement ('tr ');
Var otd1 = document. createElement ('td ');
Var otd2 = document. createElement ('td ');
Var otd3 = document. createElement ('td ');
Var otd4 = document. createElement ('td ');
Otd1.innerHTML = a ["list"] [q] ['category1 _ id'];
Otd2.innerHTML = a ["list"] [q] ['category1 _ name'];
Otd3.innerHTML = a ["list"] [q] ['category1 _ intro'];
Otd4.innerHTML = a ["list"] [q] ['category1 _ images'];
Otr. appendChild (otd1 );
Otr. appendChild (otd2 );
Otr. appendChild (otd3 );
Otr. appendChild (otd4 );
Otbod. appendChild (otr );
If (q = zy)
{
Break;
}
Q ++;
}
}
</Script>

</Head>

<Body>

<Table border = "1" id = "table">
<Thead>
<Tr> <td> category1_id </td> <td> category1_name </td> <td> category1_intro </td> <td> category1_images </td> </tr>
</Thead>
<Tbody>

</Tbody>
</Table>
<A href = "javascript: fanye (1);"> next page </a>
<A href = "javascript: fanye (-1);"> previous page </a>
</Body>
</Html>

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