Golang分页

//分页方法，根据传递过来的页数，每页数，总数，返回分页的内容 7个页数 前 1，2，3，4，5 后 的格式返回,小于5页返回具体页数

func Paginator(page, prepage int, nums int64) map[string]interface{} {

var firstpage int //前一页地址

var lastpage int  //后一页地址

//根据nums总数，和prepage每页数量 生成分页总数

totalpages := int(math.Ceil(float64(nums) / float64(prepage))) //page总数

if page > totalpages {

page = totalpages

}

if page <= 0 {

page = 1

}

var pages []int

switch {

case page >= totalpages-5 && totalpages > 5: //最后5页

start := totalpages - 5 + 1

firstpage = page - 1

lastpage = int(math.Min(float64(totalpages), float64(page+1)))

pages = make([]int, 5)

for i, _ := range pages {

pages[i] = start + i

}

case page >= 3 && totalpages > 5:

start := page - 3 + 1

pages = make([]int, 5)

firstpage = page - 3

for i, _ := range pages {

pages[i] = start + i

}

firstpage = page - 1

lastpage = page + 1

default:

pages = make([]int, int(math.Min(5, float64(totalpages))))

for i, _ := range pages {

pages[i] = i + 1

}

firstpage = int(math.Max(float64(1), float64(page-1)))

lastpage = page + 1

//fmt.Println(pages)

}

paginatorMap := make(map[string]interface{})

paginatorMap["pages"] = pages

paginatorMap["totalpages"] = totalpages

paginatorMap["firstpage"] = firstpage

paginatorMap["lastpage"] = lastpage

paginatorMap["currpage"] = page

return paginatorMap

}

html是这样的

<div class="am-cf">

  共{{.totals}}条记录 共记{{.paginator.totalpages}} 页 当前页  {{.paginator.currpage}}

  <div class="am-fr">

    <ul class="am-pagination">

    <li class=""><a href="/clubadmin/topics/{{.paginator.firstpage}}">«</a></li>

    {{range $index,$page := .paginator.pages}}

      <li  {{if eq $.paginator.currpage $page }}class="am-active"{{end}}><a href="/clubadmin/topics/{{$page}}">{{$page}}</a></li> 

    {{end}}

      <li><a href="/clubadmin/topics/{{.paginator.lastpage}}">»</a></li>

    </ul>

  </div>

</div>

controller里是这样的

res := models.Paginator(pa, pre_page, totals)

this.Data["paginator"] = res

本文来自：CSDN博客

感谢作者：ciwei_ice

查看原文：golang的一个分页方法