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這篇文章給大家分享的是有關(guān)Reactjs如何實(shí)現(xiàn)通用分頁(yè)組件的內(nèi)容。小編覺(jué)得挺實(shí)用的,因此分享給大家做個(gè)參考,一起跟隨小編過(guò)來(lái)看看吧。
大家多少都自己寫(xiě)過(guò)各種版本的分頁(yè)工具條吧,像純服務(wù)版的,純jsWeb板的,Angular版的,因?yàn)檫@個(gè)基礎(chǔ)得不能再基礎(chǔ)的功能太多地方都會(huì)用到,下面我給出以個(gè)用ReactJS實(shí)現(xiàn)的版本,首先上圖看下效果:
注意這個(gè)組件需要ES6環(huán)境,最好使用NodeJS結(jié)合Webpack來(lái)打包:webpack --display-error-details --config webpack.config.js
此React版分頁(yè)組件請(qǐng)親們結(jié)合redux來(lái)使用比較方便,UI = Fn(State)
基本流程就是:用戶(hù)交互->Action->Reduce->Store->UIRender
了解以上基礎(chǔ)知識(shí)卻非常必要,但不是我此次要說(shuō)的重點(diǎn),以上相關(guān)知識(shí)請(qǐng)各位自行補(bǔ)腦,廢話(huà)就不多說(shuō),直接上代碼。
filename: paging-bar.js
import React, { Component } from 'react' import Immutable from 'immutable' import _ from 'lodash' /* ================================================================================ * React GrxPagingBar 通用分頁(yè)組件 * author: 天真的好藍(lán)啊 * ================================================================================ */ class GrxPagingBar extends Component { render() { var pagingOptions = { showNumber: 5, firstText: "<<", firstTitle: "第一頁(yè)", prevText: "<", prevTitle: "上一頁(yè)", beforeTitle: "前", afterTitle: "后", pagingTitle: "頁(yè)", nextText: ">", nextTitle: "下一頁(yè)", lastText: ">>", lastTitle: "最后一頁(yè)", 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> ) } } /* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * 分頁(yè)條頭組件 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ 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> ) } } /* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * 分頁(yè)條前后頁(yè)組件 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ 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> ) } } /* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * 分頁(yè)條頁(yè)碼列表組件 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ 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> ) } } /* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * 分頁(yè)條尾部組件 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ 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> ) } } /* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * 分頁(yè)頁(yè)碼組件 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ 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> ) } } /* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * 分頁(yè)條信息組件 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ 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}頁(yè),共{totalRecord}條數(shù)據(jù)</span> ) } } /* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ * 從此模塊導(dǎo)出分頁(yè)條組件 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ 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使用范例組件 * ================================================================================ */ 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這個(gè)分頁(yè)數(shù)據(jù)對(duì)象的結(jié)構(gòu)paging.go服務(wù)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 }
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