vue.js 组件实现简单分页效果
前言
为了练习vue.js 之前做了一个vue.js前端分页效果，后面看到vue.js组件内容，就试着把这个功能写成一个简单组件，向组件元素传递一个object参数，包含分页数据，显示的列名信息，分页信息，组件提供一个事件，传递给父元素一个分页信息，父元素拿着分页信息获取数据，修改之前的object。这样就实现了分页效果。
效果
知识点
- components 组件
- props 父级向组件传参
- template 模板
- computed 计算属性
- $emit() 组件事件，组件先父级元素传参
html内容
对比之前html内容简洁多了。
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title> CommonTesttitle>
<link rel="stylesheet" href="../bootstrap.min.css" />
head>
<body>
<div class="container body-content">
<header>
<h2>vue.js组件分页效果h2>
header>
<div id="test" class="form-group">
<my-component v-on:show-page="getPageData" v-bind:pager-data="pagerData">my-component>
div>
<hr />
<footer>
<p>© 2017 - 易兒善p>
footer>
div>
body>
html>
javascript内容
<script src="../vue.js">script>
<script src="com.js">script>
<script>
//模拟获取数据
var getData=function(){
var result = [];
for (var i = 0; i < 205; i++) {
result[i] ={name:'test'+i,id:i,age:(Math.random()*100).toFixed()};
}
return result;
}
var vue = new Vue({
el: "#test",
ready:function(){
this.dataAll = getData();
this.pagerData.page.totalCount = this.dataAll.length;
this.getPageData(this.pagerData.page);
},
methods: {
getPageData: function (page) {
this.pagerData.page.pagesize = page.pagesize;
this.pagerData.page.pageCurrent = page.pageCurrent;
this.pagerData.page.pageCount = Math.ceil(this.pagerData.page.totalCount / page.pagesize);// 修改分页信息
var newPageInfo = [];
for (var i = 0; i < page.pagesize; i++) {
var index =i+(page.pageCurrent-1)*page.pagesize;
if(index>this.pagerData.page.totalCount-1)break;
newPageInfo[newPageInfo.length] = this.dataAll[index];
}
this.pagerData.data = newPageInfo; // 修改分页数据
}
},
components: {
'my-component': pager
},
data: {
//所有数据，分页数据从这里取
dataAll:[],
pagerData:{
data:[],
rows:[{label:"ID",name:"id"},
{label:"名字",name:"name"},
{label:"年龄",name:"age"}
],
page:{
arrPageSize:[10,20,30,40],
pagesize:10,
pageCount:1,
pageCurrent:1,
totalCount:1
}
}
},
});
script>com.js组件内容
var pager = {
props: {
pagerData:{
type: Object,
default:function(){
return{
data:[],
rows:[],
page:{
//分页大小
pagesize:20,
//分页数
arrPageSize:[10,20,30,40],
//当前页面
pageCurrent:1,
//总分页数
pageCount:1,
//总数
totalCount:10
}
}
}
}
},
template: '<table class="table table-bordered table-responsive table-striped">\
<tr>\
<th v-for="item in pagerData.rows" v-on:click="sortBy(item.name)">{{item.label}}th>\
tr>\
<tr v-for="dataItem in pagerData.data | orderBy sortparam sorttype">\
<td v-for="item in pagerData.rows">{{dataItem[item.name]}}td>\
tr>\
table>\
<div class="pager" id="pager">\
<span class="form-inline">\
<select class="form-control" v-model="pagesize" v-on:change="showPage(pageCurrent,$event)" number>\
<option v-for="item in pagerData.page.arrPageSize" value="{{item}}">{{item}}option>\
select>\
span>\
<span class="btn btn-default" v-on:click="showPage(1,$event)">首页span>\
<span class="btn btn-default" v-on:click="showPage(pageCurrent-1,$event)">上一页span>\
<span class="form-inline">\
<input class="form-control" style="width:60px;text-align:center" type="text" v-model="pageCurrent" v-on:keyup.enter="showPage(mypageCurrent,$event,true)" />\
span>\
<span>共{{pagerData.page.pageCount}}页span>\
<span class="btn btn-default" v-on:click="showPage(pageCurrent+1,$event)">下一页span>\
<span class="btn btn-default" v-on:click="showPage(pagerData.page.pageCount,$event)">尾页span>\
<span>共{{pagerData.page.totalCount}}条数据，当前显示第{{startData}}-{{endData}}条记录span>\
div>',
data:function(){return{
mypagesize:10,
mypageCurrent:1,
sortparam:"",
sorttype:1,
}},
//计算属性
computed:{
// 分页大小 获取的时候显示父级传入的，修改的时候修改自身的。子组件不能修改父元素的值
pagesize:{
get:function(){
return this.pagerData.page.pagesize;
},
set:function(value){
this.mypagesize = value;
}
},
pageCurrent:{
get:function(){
return this.pagerData.page.pageCurrent;
},
set:function(value){
this.mypageCurrent = value;
}
},
startData:function(){
return this.pagerData.page.pagesize*(this.pagerData.page.pageCurrent-1)+1;
},
endData:function(){
var max =this.pagerData.page.pagesize*this.pagerData.page.pageCurrent;
return max>this.pagerData.page.totalCount?this.pagerData.page.totalCount:max;
}
},
methods:{
showPage: function (pageIndex, $event) {
if (pageIndex > 0) {
if(pageIndex>this.pagerData.page.pageCount) pageIndex = this.page.pageCount;
this.$emit('show-page',{pageCurrent:pageIndex,pagesize:this.mypagesize});//事件
}
},sortBy: function (sortparam) {
this.sortparam = sortparam;
this.sorttype = this.sorttype == -1 ? 1 : -1;
}
}
}源码下载：http://download.csdn.net/detail/yiershan1314/9780591