自定义分页控件-基于Zhifeiya的分页控件改版

基于Zhifeiya的分页控件改版的分页。

html显示代码：

<div class="pagelist">
    {{.pagerHtml}}
  </div>

 

controller调用代码：

　　currentPage, _ := this.GetInt("cp")//当前页
    pageSize, _ := this.GetInt("si")//每页记录数
    var po pager.PageOptions
    po = pager.InitPager("/admin/menu/", pageSize, currentPage, "")
    list, total := rmBll.QueryMenuListPager(nil, po.Start, po.PageSize)
    po.Total = total
    var pagerHtml string = pager.GetPagerInfo(po)
    this.Data["list"] = list
    this.Data["pagerHtml"] = template.HTML(pagerHtml)

 

分页代码：前台样式根据页面样式自行调整

package pager

/**
 * 描述：分页控件
 * 作者：Tianqi
 * 时间：2014-09-15
 */
import (
    "strconv"
)

type PageOptions struct {
    Start         int64  //开始索引
    CurrentPage   int64  //当前页
    PageSize      int64  //页面大小,默认20
    Url           string //链接地址(不含参数 ?前的地址)
    Total         int64  //总记录数
    TotalPages    int64  //总页数
    LinkItemCount int64  //生成A标签的个数 默认10个
    Params        string //参数

    FirstPageText       string //首页文字  默认"首页"
    LastPageText        string //尾页文字  默认"尾页"
    PrePageText         string //上一页文字 默认"上一页"
    NextPageText        string //下一页文字 默认"下一页"
    EnableFirstLastLink bool   //是否启用首尾连接 默认false 建议开启
    EnablePreNexLink    bool   //是否启用上一页,下一页连接 默认false 建议开启
}

/**
* 初始化分页控件
 */
func InitPager(url string, pagesize int64, currentpage int64, params string) PageOptions {
    var po PageOptions
    po.Url = url
    po.PageSize = pagesize
    po.CurrentPage = currentpage
    po.Params = params
    setDefault(&po)
    po.Start = getStart(po.PageSize, po.CurrentPage)
    return po
}

/**
* 获取分页html
 */
func GetPagerInfo(po PageOptions) string {
    po.TotalPages = getTotalPages(po.Total, po.PageSize)
    var html string
    html += "<div class='l-btns'>"
    html += "<span>每页显示</span>"
    html += "<input type='text' value='" + strconv.Itoa(int(po.PageSize)) + "' id='pageSize' class='pagenum'/>"
    html += "<span>条，共 "
    html += strconv.Itoa(int(po.Total))
    html += " 条记录/ "
    html += strconv.Itoa(int(po.TotalPages))
    html += " 页</span>"
    // html += "</div>"
    // html += "<div class='default'>"
    html += ""
    if po.CurrentPage == 1 {
        html += po.FirstPageText
        html += po.PrePageText
    } else {
        html += "<a href='" + getHref(po.Url, 1, po.PageSize, po.Params) + "'>"
        html += po.FirstPageText
        html += "</a><a href='" + getHref(po.Url, po.CurrentPage-1, po.PageSize, po.Params) + "'>"
        html += po.PrePageText
        html += "</a>"
    }
    if po.TotalPages > po.LinkItemCount {
        for i := po.CurrentPage - po.LinkItemCount/2 + 1; i <= po.CurrentPage+po.LinkItemCount/2-1; i++ {
            if i < 1 || i > po.TotalPages {
                continue
            }
            if po.CurrentPage != i {
                html += "<a href='" + getHref(po.Url, i, po.PageSize, po.Params) + "'>" + strconv.Itoa(int(i)) + "</a>"
            } else {
                html += "<span class=\"current\">" + strconv.Itoa(int(i)) + "</span>"
            }
        }
    } else {
        var i int64 = 1
        for ; i <= po.TotalPages; i++ {
            if po.CurrentPage != i {
                html += "<a href='" + getHref(po.Url, i, po.PageSize, po.Params) + "'>" + strconv.Itoa(int(i)) + "</a>"
            } else {
                html += "<span class=\"current\">" + strconv.Itoa(int(i)) + "</span>"
            }
        }
    }

    if po.CurrentPage >= po.TotalPages {
        html += po.NextPageText
        html += po.LastPageText
    } else {
        html += "<a href='" + getHref(po.Url, po.CurrentPage+1, po.PageSize, po.Params) + "'>"
        html += po.NextPageText
        html += "</a><a href='" + getHref(po.Url, po.TotalPages, po.PageSize, po.Params) + "'>"
        html += po.LastPageText
        html += "</a>"
    }
    html += "<input type='hidden' id='pagerHref' value='" + getHref1(po.Url, po.CurrentPage, po.Params) + "'/>"
    html += ""
    html += "</div>"
    return html
}

/**
* 描述：获取起始记录索引
 */
func getStart(pageSize int64, currentPage int64) int64 {
    return (currentPage - 1) * pageSize
}

/**
* 描述：获取总页数
 */
func getTotalPages(total int64, pageSize int64) int64 {
    var totalPages int64
    if total%pageSize == 0 {
        totalPages = total / pageSize
    } else {
        totalPages = total/pageSize + 1
    }
    return totalPages
}

/**
* 描述：获取链接地址
 */
func getHref(url string, currentPage int64, pageSize int64, params string) string {
    var href string
    href += url + "?cp=" + strconv.Itoa(int(currentPage)) + "&si=" + strconv.Itoa(int(pageSize))
    if len(params) > 0 {
        href += params
    }
    return href
}

/**
* 描述：获取链接地址，不包含pageSize值，页面使用
 */
func getHref1(url string, currentPage int64, params string) string {
    var href string
    href += url + "?cp=" + strconv.Itoa(int(currentPage))
    if len(params) > 0 {
        href += params
    }
    href += "&si="
    return href
}

/**
 * 设置默认值
 */
func setDefault(po *PageOptions) {
    if len(po.FirstPageText) <= 0 {
        po.FirstPageText = "首页"
    }
    if len(po.LastPageText) <= 0 {
        po.LastPageText = "尾页"
    }
    if len(po.PrePageText) <= 0 {
        po.PrePageText = "上一页"
    }
    if len(po.NextPageText) <= 0 {
        po.NextPageText = "下一页"
    }
    if po.LinkItemCount == 0 {
        po.LinkItemCount = 10
    }
    if po.PageSize <= 0 {
        po.PageSize = 20
    }
    if po.CurrentPage < 1 {
        po.CurrentPage = 1
    }
}

 

Tianqi.