Reactjs如何实现通用分页组件
这篇文章给大家分享的是有关Reactjs如何实现通用分页组件的内容。小编觉得挺实用的，因此分享给大家做个参考，一起跟随小编过来看看吧。
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大家多少都自己写过各种版本的分页工具条吧，像纯服务版的，纯jsWeb板的，Angular版的，因为这个基础得不能再基础的功能太多地方都会用到，下面我给出以个用ReactJS实现的版本，首先上图看下效果：
注意这个组件需要ES6环境，最好使用NodeJS结合Webpack来打包：webpack --display-error-details --config webpack.config.js
此React版分页组件请亲们结合redux来使用比较方便，UI = Fn(State)
基本流程就是：用户交互->Action->Reduce->Store->UIRender
了解以上基础知识却非常必要，但不是我此次要说的重点，以上相关知识请各位自行补脑，废话就不多说，直接上代码。
filename: paging-bar.js
import React, { Component } from 'react'
import Immutable from 'immutable'
import _ from 'lodash'
/* ================================================================================
* React GrxPagingBar 通用分页组件
* author: 天真的好蓝啊
* ================================================================================ */
class GrxPagingBar extends Component {
render() {
var pagingOptions = {
showNumber: 5,
firstText: "<<",
firstTitle: "第一页",
prevText: "<",
prevTitle: "上一页",
beforeTitle: "前",
afterTitle: "后",
pagingTitle: "页",
nextText: ">",
nextTitle: "下一页",
lastText: ">>",
lastTitle: "最后一页",
classNames: "grx-pagingbar pull-right",
}
$.extend(pagingOptions, this.props.pagingOptions)
return (
)
}
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* 分页条头组件
* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
class GrxPagingFirst extends Component {
render() {
var ids = []
let paging = this.props.items.get('Paging')
let current = paging.get('PagingIndex')
let pagingIndex = current - 1
if(paging.get('PagingIndex') != 1){
ids.push(1)
}
let html = ids.map(
(v,i) =>
)
return (
{html}
)
}
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* 分页条前后页组件
* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
class GrxPagingBeforeAfter extends Component {
render() {
var ids = []
let isBefore = this.props.isBefore == "true" ? true : false
let paging = this.props.items.get('Paging')
let pagingCount = paging.get('PagingCount')
let current = paging.get('PagingIndex')
let pagingIndex = isBefore ? current - this.props.showNumber : current + this.props.showNumber
let title = (isBefore ? this.props.beforeTitle : this.props.afterTitle) + (this.props.showNumber + 1) + this.props.pagingTitle
if(isBefore && current > this.props.showNumber + 1){
ids.push(1)
}else if(!isBefore && current < pagingCount - this.props.showNumber){
ids.push(1)
}
var html = ids.map(
(v,i) => ..
)
return (
{html}
)
}
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* 分页条页码列表组件
* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
class GrxPagingList extends Component {
render(){
let paging = this.props.items.get('Paging')
let count = paging.get('PagingCount')
let current = paging.get('PagingIndex')
let start = current - this.props.showNumber
let end = current + this.props.showNumber
var pageIndexs = new Array();
for(var i = start; i < end; i ++) {
if( i == current){
pageIndexs.push(i)
}else if(i > 0 & i <= count) {
pageIndexs.push(i)
}
}
var pagingList = pageIndexs.map(
(v,i) =>
current == v ?
count > 1 ? {v} : ""
:
)
return(
{pagingList}
)
}
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* 分页条尾部组件
* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
class GrxPagingLast extends Component {
render() {
var ids = []
let paging = this.props.items.get('Paging')
let pagingCount = paging.get('PagingCount')
let current = paging.get('PagingIndex')
let pagingIndex = current + 1
if(paging.get('PagingIndex') < paging.get('PagingCount')){
ids.push(1)
}
let html = ids.map(
(v,i) =>
)
return (
{html}
)
}
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* 分页页码组件
* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
class GrxPagingNumber extends Component {
render(){
let pagingIndex = this.props.pagingIndex
let title = "第"+ pagingIndex + this.props.pagingTitle
let text = pagingIndex
if(this.props.title){
title = this.props.title
}
if(this.props.text){
text = this.props.text
}
return(
{text}
)
}
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* 分页条信息组件
* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
class GrxPagingInfo extends Component {
render() {
let paging = this.props.items.get('Paging')
let pagingIndex = paging.get('PagingIndex')
let pagingCount = paging.get('PagingCount')
let totalRecord = paging.get('TotalRecord')
return (
第{pagingIndex}/{pagingCount}页,共{totalRecord}条数据
)
}
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* 从此模块导出分页条组件
* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
export default GrxPagingBar
使用方法：
import React, { Component } from 'react'
import _ from 'lodash'
import classNames from 'classnames'
import PagingBar from '.paging-bar'
/* ================================================================================
* React PagingBar使用范例组件
* ================================================================================ */
class PagingBarExample extends Component {
render() {
let pagingOptions = {
showNumber: 3
}
return (
|
|
)
}
}附上Paging这个分页数据对象的结构paging.go服务端的Data Struct：
package commons
import (
"math"
)
type (
Paging struct {
PagingIndex int64
PagingSize int64
TotalRecord int64
PagingCount int64
Sortorder string
}
)
func (paging *Paging) SetTotalRecord(totalRecord int64) {
//paging.PagingIndex = 1
paging.PagingCount = 0
if totalRecord > 0 {
paging.TotalRecord = totalRecord
paging.PagingCount = int64(math.Ceil(float64(paging.TotalRecord) / float64(paging.PagingSize)))
}
}
func (paging *Paging) Offset() int64 {
if paging.PagingIndex <= 1 || paging.PagingSize == 0 {
return 0
}
offset := (paging.PagingIndex * paging.PagingSize) - paging.PagingSize + 1
return offset
}
func (paging *Paging) EndIndex() int64 {
if paging.PagingIndex <= 1 {
return paging.PagingSize
}
offset := paging.PagingIndex * paging.PagingSize
return offset
}感谢各位的阅读！关于“Reactjs如何实现通用分页组件”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，让大家可以学到更多知识，如果觉得文章不错，可以把它分享出去让更多的人看到吧！
分享名称：Reactjs如何实现通用分页组件
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