golang的一个分页方法

来源：互联网发布：有什么编程软件编辑：程序博客网时间：2024/06/08 15:27

需要做一分页。。就做了个方法，beego里的例子太麻烦了。还是弄个简单的吧，上代码。。

//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 []intswitch {case page >= totalpages-5 && totalpages > 5: //最后5页start := totalpages - 5 + 1firstpage = page - 1lastpage = 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 + 1pages = make([]int, 5)firstpage = page - 3for i, _ := range pages {pages[i] = start + i}firstpage = page - 1lastpage = page + 1default: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"] = pagespaginatorMap["totalpages"] = totalpagespaginatorMap["firstpage"] = firstpagepaginatorMap["lastpage"] = lastpagepaginatorMap["currpage"] = pagereturn 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

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