Javascript implements json page paging example code_javascript skills-JS Tutorial-php.cn

Javascript implements json page paging example code_javascript skills

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Release： 2016-05-16 16:59:04

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In the afternoon, a friend asked how to paginate json data and came up with something

The following direct code:

<!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>无标题文档</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:\/\/
 
{"category1_id":"2","category1_name":"\u7c73\u9762\u7cae\u6cb9","category1_intro":"\u5bb6\u5ead\u5fc5\u5907",
"category1_images":"http:\/\/ 
{"category1_id":"3","category1_name":"\u7f8e\u5bb9\u6d17\u62a4","category1_intro":"\u62a4\u80a4\u5fc5\u5907",
"category1_images":"http:\/\/ 
{"category1_id":"4","category1_name":"\u6e05\u6d01\u6d17\u6da4",
"category1_intro":"\u7ed9\u60a8\u4e00\u4e2a\u5e72\u51c0\u7684\u751f\u6d3b\u73af\u5883","category1_images":"
http:\/\/ 
"category1_name":"\u751f\u6d3b\u7528\u54c1","category1_intro":"\u5bb6\u5ead\u5fc5\u5907",
"category1_images":"http:\/\/ 
{"category1_id":"6","category1_name":"\u4f11\u95f2\u98df\u54c1","category1_intro":"\u597d\u5403\u7f8e\u5473",
"category1_images":"http:\/\/ 
]};
var y=1;//表示页数
var t=2;//表示每页现实几条数据
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(&#39;已经是第一页了&#39;);
        f=0;
        }
    if(y==zy && f==1)
    {
        alert(&#39;已经是最后一页了&#39;);
        f=0;
        }    

     var otbod=document.getElementById(&#39;table&#39;).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;//页数-1 乘以每页现实多少条 结果为 本页从第几条开始
       for(var i=1;i<3;i++)
    {

    var otr=document.createElement(&#39;tr&#39;);
    var otd1=document.createElement(&#39;td&#39;);
    var otd2=document.createElement(&#39;td&#39;);
    var otd3=document.createElement(&#39;td&#39;);
    var otd4=document.createElement(&#39;td&#39;);
    otd1.innerHTML=a["list"][q][&#39;category1_id&#39;];
    otd2.innerHTML=a["list"][q][&#39;category1_name&#39;];
    otd3.innerHTML=a["list"][q][&#39;category1_intro&#39;];
    otd4.innerHTML=a["list"][q][&#39;category1_images&#39;];
    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);">下一页</a>
<a href="javascript:fanye(-1);">上一页</a>
</body>
</html>

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