js对象实现数据分页效果
本文实例为大家分享了js对象实现数据分页效果的具体代码,供大家参考,具体内容如下
实现数据分页要清楚这个的方面的设计:
1.先模拟建立一个后台数据库,如下:
var peoson=[ { "id":"1", " name":"鞠婧祎", "sex":"女", "age":"25", "class":"八班", "habby":"跳舞", "score":"40", "addess":"陕西西安长安区" }, { "id":"2", " name":"关晓彤", "sex":"女", "age":"20", "class":"八班", "habby":"跳舞", "score":"40", "addess":"陕西西安长安区" }, { "id":"3", " nam印度服务器http://www.558idc.com/yd.htmle":"赵丽颖", "sex":"女", "age":"26", "class":"八班", "habby":"跳舞", "score":"40", "addess":"陕西西安长安区" }, { "id":"4", " name":"薛之谦", "sex":"男", "age":"37", "class":"八班", "habby":"跳舞", "score":"40", "addess":"陕西西安长安区" } ]
2.设置每页的数据量,当前页数以及总页数
用函数动态设置总页数,根据总的数据量除以每页数据量来计算;
用函数动态设置每页里的数据是由总数据中的哪几条;
Allpage: function () { this.allpage = Math.ceil(this.Message.length / this.perpage); console.log(this.Message.length); console.log(this.allpage); }, Nowpagenum:function(n){ var first=(n-1)*this.perpage; //0 var last=n*this.perpage ; //10 this.nowpagenum =this.Message.slice(first,last); },
3.动态创建dom元素,给最大块添加子元素,用来存放每一条数据
Creatnews:function() { this.list.innerHTML = ""; for (var i = 0; i < this.perpage; i++) { var page_list = document.createElement("div"); page_list.className = "pagelist"; for (var key in this.nowpagenum[i]) { var per_child = document.createElement("div"); per_child.className = "perchild"; page_list.appendChild(per_child); per_child.innerHTML = this.nowpagenum[i][key]; //console.log(this.nowpagenum[i]); } this.list.appendChild(page_list); } },
4.创建列表下面的页数,进行前缩进,后缩进和前后缩进
假设总页数为
如果当前页数大于5页会进行前缩进,前面的页数从2到当前页数减一的页数缩进;
如果当前页数小于16时都会进行后缩进
介于两者之间的页数会进行前后缩进。
Page_ma:function(current,totle){ var str=""; for(var i=1;i <=totle;i++){ if(i==2 && current-3>i ){ //ǰ���� current>5 i=current-1; str+="<li>...</li>"; } else if(i==current+4 && current+4<totle){ i=totle-1; str+="<li>...</li>"; //������ current<16 } else{ if(current==i){ str+="<li class='minilist' style='background: pink'>"+i+"</li>" ; } else{ str+="<li class='minilist'>"+i+"</li>"; } } } this .pageshu.innerHTML= str; },
5.点击页数时,会跳转到当前页数的数据,并进行相应的缩进
Pageclick:function(){ var mini_list=document.getElementsByClassName ("minilist"); for(var k=0;k <mini_list.length;k++){ mini_list[k].onclick=function(){ Fenye.nowpage=parseInt (this.innerHTML ); // console.log(this.innerHTML); //mini_list[k] ������ı� Fenye.Page_ma(Fenye.nowpage,Fenye.allpage); Fenye.Pageclick(); Fenye.Creatnews (); Fenye.Nowpagenum (Fenye.nowpage); }
6.点击上下页,以及设置跳转的页数时,会跳转到当前页数的数据,并进行相应的缩进
Clickevent:function(){ Fenye. back.onclick =function(){ Fenye.nowpage--; if(Fenye.nowpage<2){ Fenye.nowpage=1; } Fenye.Page_ma(Fenye.nowpage,Fenye.allpage); Fenye.Pageclick(); Fenye.Creatnews (); Fenye.Nowpagenum (Fenye.nowpage); }; Fenye.go.onclick =function(){ if(Fenye.nowpage>=Fenye.allpage){ Fenye.nowpage=Fenye.allpage; } Fenye.nowpage++; Fenye.Page_ma(Fenye.nowpage,Fenye.allpage); Fenye.Pageclick(); Fenye.Creatnews (); Fenye.Nowpagenum (Fenye.nowpage); }; Fenye.tiao.onclick =function(){ var put=document.getElementById ("in_put"); Fenye.nowpage = parseInt (put.value ) ; if(put.value>=Fenye.allpage){ Fenye.nowpage = parseInt (put.value ); } Fenye.Page_ma(Fenye.nowpage,Fenye.allpage); Fenye.Pageclick(); Fenye.Creatnews (); Fenye.Nowpagenum (Fenye.nowpage); } }
html和css部分
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <script src="js/message1.js " type="text/javascript "></script> <script src="js/pagenews.js " type="text/javascript "></script> <style> *{ margin:0; padding:0; } li{ list-style: none; } .block{ position: relative; width:1200px; height:600px; margin:auto; border:1px solid darkblue; } .totle { width:100%; height:40px; display: flex; flex-direction: row; flex:1; background: #b0ffd8; text-align: center; color: #5c5a5c; font-size: 18px; line-height: 40px; } .tot_1 { flex: 1; } .tot_2{ flex:2.5; } .list{ width:1200px; height:auto; } .pagelist{ width:100%; height:35px; border-bottom: 1px solid silver; display: flex; flex-direction: row; text-align: center; } .perchild:nth-child(1) { flex:1; } .perchild:nth-child(2) { flex:1; } .perchild:nth-child(3) { flex:1; } .perchild:nth-child(4) { flex:1; } .perchild:nth-child(5) { flex:1; } .perchild:nth-child(6) { flex:1; } .perchild:nth-child(7) { flex:1; } .perchild:nth-child(8) { flex:2.5; background: pink ; } .footer{ position: absolute; bottom:5px; left:10px; } #pageshu> li{ width:35px; height:35px; line-height: 35px; display: inline-block; text-align: center; border:1px solid gray; } #back, #go{ width:60px; height:35px; line-height: 35px; border:1px solid black; display: inline-block; text-align: center; } #foot_li>li:nth-child(2), #foot_li>li:nth-child(4), #foot_li>li:nth-child(5),#foot_li>li:nth-child(6){ display: inline-block; } #foot_li>li:nth-child(4)>input{ width:30px; height:20px; outline: none; } #foot_li>li:nth-child(5)>button{ background: #000bff; color: #fff; } </style> </head> <body> <div class="block"> <div class="totle"> <div class="tot_1">学号</div> <div class="tot_1">姓名</div> <div class="tot_1">性别</div> <div class="tot_1">年龄</div> <div class="tot_1">班级</div> <div class="tot_1">爱好</div> <div class="tot_1">学分</div> <div class="tot_2">家庭住址</div> </div> <div class="list"> </div> <div class="footer"> <ul id="foot_li"> <li id="back">上一页</li> <li> <ul id="pageshu"> </ul> </li> <li id="go">下一页</li> <li>跳转到<input id="in_put" type="text"/> </li> <li><button id="tiao">跳转</button></li> <li>总页数:<span id="tot"></span></li> </ul> </div> </div> </body> </html>
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持hwidc。