Reactjs实现通用分页组件的实例代码

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 (
   <div className={pagingOptions.classNames} >
    <GrxPagingFirst {...pagingOptions} {...this.props} />
    <GrxPagingBeforeAfter isBefore="true" {...pagingOptions} {...this.props} />
    <GrxPagingList {...pagingOptions} {...this.props} />
    <GrxPagingBeforeAfter isBefore="false" {...pagingOptions} {...this.props} />
    <GrxPagingLast {...pagingOptions} {...this.props} />
    <GrxPagingInfo {...this.props} />
   </div>
  )
 }
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * 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) => 
   <span>
    <GrxPagingNumber title={this.props.firstTitle} text={this.props.firstText} pagingIndex={1} {...this.props}/>
    <GrxPagingNumber title={this.props.prevTitle} text={this.props.prevText} pagingIndex={pagingIndex} {...this.props}/>
   </span>
  )
  return (
   <span className="grx-pagingbar-fl">
    {html}
   </span>
  )
 }
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * 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) => <a href="###" onClick={this.props.actions.pagingAction.bind(this, pagingIndex)} title={title}>..</a>
  )
  return (
   <span>
    {html}
   </span>
  )
 }
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * 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 ? <span className="grx-pagingbar-current">{v}</span> : ""
   : 
   <GrxPagingNumber pagingIndex={v} {...this.props} />
  )
  return(
   <span>
    {pagingList}
   </span>
  )
 }
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * 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) => 
   <span>
    <GrxPagingNumber title={this.props.nextTitle} text={this.props.nextText} pagingIndex={pagingIndex} {...this.props}/>
    <GrxPagingNumber title={this.props.lastTitle} text={this.props.lastText} pagingIndex={pagingCount} {...this.props} />
   </span>
  )
  return (
   <span className="grx-pagingbar-fl">
    {html}
   </span>
  )
 }
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * 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(
   <a href="###" onClick={this.props.actions.pagingAction.bind(this, pagingIndex)} title={title}> {text} </a>
  )
 }
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * 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 (
   <span className="grx-pagingbar-info">第{pagingIndex}/{pagingCount}页,共{totalRecord}条数据</span>
  )
 }
}
/* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * 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 (
   <table className="table table-condensed">
    <tbody>
     <tr>
      <td>
       <PagingBar pagingOptions={pagingOptions} {...this.props} />
      </td>
     </tr>
    </tbody>
   </table>
  )
 }
}

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
}

以上所述是小编给大家介绍的Reactjs实现通用分页组件的实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！

# reactjs分页组件  # react分页显示数据的方法  # React实现分页效果  # 尝试自己动手用react来写一个分页组件(小结)  # 使用React MUI库实现用户列表分页功能  # 分页  # 小编  # 太多  # 下一页  # 在此  # 上一页  # 就不  # 给大家  # 请各位  # 多说  # 第一页  # 能再  # 所述  # 写过  # 给我留言  # 工具条  # 服务端  # 感谢大家  # 相关知识  # 后页 

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