/*** 日志列表*/
func (this *LogController) List() {pno, _ := this.GetInt("pno") //获取当前请求页
    var tlog []m.Tb_logvar conditions string = " order by id desc" //定义日志查询条件,格式为 " and name='zhifeiya' and age=12 "var po pager.PageOptions                                                //定义一个分页对象po.TableName = "tb_log"                                                 //指定分页的表名po.EnableFirstLastLink = true                                           //是否显示首页尾页 默认falsepo.EnablePreNexLink = true                                              //是否显示上一页下一页 默认为falsepo.Conditions = conditions                                              // 传递分页条件 默认全表po.Currentpage = int(pno)                                               //传递当前页数,默认为1po.PageSize = 20                                                        //页面大小  默认为20//返回分页信息,//第一个:为返回的当前页面数据集合,ResultSet类型//第二个:生成的分页链接//第三个:返回总记录数//第四个:返回总页数rs, pagerhtml, totalItem, _ := pager.GetPagerLinks(&po, this.Ctx)rs.QueryRows(&tlog)      //把当前页面的数据序列化进一个切片内this.Data["list"] = tlog //把当前页面的数据传递到前台this.Data["pagerhtml"] = pagerhtmlthis.Data["totalItem"] = totalItemthis.Data["PageSize"] = po.PageSizethis.TplNames = "cms/log/list.html"
}

  <div class="default"><span>共{{.totalItem}}记录</span><div style="float:left;">{{.pagerhtml}}</div></div>

  <div class="meneame"><span>共{{.totalItem}}记录</span><div style="float:left;">{{.pagerhtml}}</div></div>

package pager/*** 分页功能* 支飞亚* 2014-9-1*/
import (// "fmt""github.com/astaxie/beego/context""github.com/astaxie/beego/orm"html "html/template"con "strconv""strings""time"
)type PageOptions struct {TableName           string //表名  -----------------[必填]Conditions          string //条件Currentpage         int    //当前页 ,默认1 每次分页,必须在前台设置新的页数,不设置始终默认1.在控制器中使用方式:cp, _ := this.GetInt("pno")   po.Currentpage = int(cp)PageSize            int    //页面大小,默认20LinkItemCount       int    //生成A标签的个数 默认10个Href                string //A标签的链接地址  ---------[不需要设置]ParamName           string //参数名称  默认是pnoFirstPageText       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
}/*** 分页函数，适用任何表* 返回 总记录条数,总页数,以及当前请求的数据RawSeter,调用中需要"rs.QueryRows(&tblog)"就行了  --tblog是一个Tb_log对象* 参数：表名，当前页数，页面大小，条件（查询条件,格式为 " and name='zhifeiya' and age=12 "）*/
func GetPagesInfo(tableName string, currentpage int, pagesize int, conditions string) (int, int, orm.RawSeter) {if currentpage <= 1 {currentpage = 1}if pagesize == 0 {pagesize = 20}var rs orm.RawSetero := orm.NewOrm()var totalItem, totalpages int = 0, 0                                                          //总条数,总页数o.Raw("SELECT count(*) FROM " + tableName + "  where 1>0 " + conditions).QueryRow(&totalItem) //获取总条数if totalItem <= pagesize {totalpages = 1} else if totalItem > pagesize {temp := totalItem / pagesizeif (totalItem % pagesize) != 0 {temp = temp + 1}totalpages = temp}rs = o.Raw("select *  from  " + tableName + "  where id >0 " + conditions + " LIMIT " + con.Itoa((currentpage-1)*pagesize) + "," + con.Itoa(pagesize))return totalItem, totalpages, rs
}/*** 返回总记录条数,总页数,当前页面数据,分页html* 根据分页选项,生成分页连接 下面是一个实例:func (this *MainController) Test() {var po util.PageOptionspo.EnablePreNexLink = truepo.EnableFirstLastLink = truepo.LinkItemCount = 7po.TableName = "help_topic"cp, _ := this.GetInt("pno")po.Currentpage = int(cp)_,_,_ pager := util.GetPagerLinks(&po, this.Ctx)this.Data["Email"] = html.HTML(pager)this.TplNames = "test.html"}
*/
func GetPagerLinks(po *PageOptions, ctx *context.Context) (int, int, orm.RawSeter, html.HTML) {var str string = ""totalItem, totalpages, rs := GetPagesInfo(po.TableName, po.Currentpage, po.PageSize, po.Conditions)po = setDefault(po, totalpages)DealUri(po, ctx)if totalpages <= po.LinkItemCount {str = fun1(po, totalpages) //显示完全  12345678910} else if totalpages > po.LinkItemCount {if po.Currentpage < po.LinkItemCount {str = fun2(po, totalpages) //123456789...200} else {if po.Currentpage+po.LinkItemCount < totalpages {str = fun3(po, totalpages)} else {str = fun4(po, totalpages)}}}return totalItem, totalpages, rs, html.HTML(str)
}/*** 处理url,目的是保存参数*/
func DealUri(po *PageOptions, ctx *context.Context) {uri := ctx.Request.RequestURIvar rs stringif strings.Contains(uri, "?") {arr := strings.Split(uri, "?")rs = arr[0] + "?" + po.ParamName + "time=" + con.Itoa(time.Now().Second())arr2 := strings.Split(arr[1], "&")for _, v := range arr2 {if !strings.Contains(v, po.ParamName) {rs += "&" + v}}} else {rs = uri + "?" + po.ParamName + "time=" + con.Itoa(time.Now().Second())}po.Href = rs
}/*** 1...197 198 199 200*/
func fun4(po *PageOptions, totalpages int) string {var rs string = ""rs += getHeader(po, totalpages)rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(1) + "'>" + con.Itoa(1) + "</a>"rs += "<a href=''>...</a>"for i := totalpages - po.LinkItemCount; i <= totalpages; i++ {if po.Currentpage != i {rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a>"} else {rs += "<span class=\"current\">" + con.Itoa(i) + "</span>"}}rs += getFooter(po, totalpages)return rs}/*** 1...6 7 8 9 10 11 12  13  14 15... 200*/
func fun3(po *PageOptions, totalpages int) string {var rs string = ""rs += getHeader(po, totalpages)rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(1) + "'>" + con.Itoa(1) + "</a>"rs += "<a href=''>...</a>"for i := po.Currentpage - po.LinkItemCount/2 + 1; i <= po.Currentpage+po.LinkItemCount/2-1; i++ {if po.Currentpage != i {rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a>"} else {rs += "<span class=\"current\">" + con.Itoa(i) + "</span>"}}rs += "<a href=''>...</a>"rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(totalpages) + "'>" + con.Itoa(totalpages) + "</a>"rs += getFooter(po, totalpages)return rs}/*** totalpages > po.LinkItemCount   po.Currentpage < po.LinkItemCount* 123456789...200*/
func fun2(po *PageOptions, totalpages int) string {var rs string = ""rs += getHeader(po, totalpages)for i := 1; i <= po.LinkItemCount+1; i++ {if i == po.LinkItemCount {rs += "<a href=\"" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "\">...</a>"} else if i == po.LinkItemCount+1 {rs += "<a href=\"" + po.Href + "&" + po.ParamName + "=" + con.Itoa(totalpages) + "\">" + con.Itoa(totalpages) + "</a>"} else {if po.Currentpage != i {rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a>"} else {rs += "<span class=\"current\">" + con.Itoa(i) + "</span>"}}}rs += getFooter(po, totalpages)return rs
}/*** totalpages <= po.LinkItemCount* 显示完全  12345678910*/
func fun1(po *PageOptions, totalpages int) string {var rs string = ""rs += getHeader(po, totalpages)for i := 1; i <= totalpages; i++ {if po.Currentpage != i {rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a>"} else {rs += "<span class=\"current\">" + con.Itoa(i) + "</span>"}}rs += getFooter(po, totalpages)return rs
}/*** 头部*/
func getHeader(po *PageOptions, totalpages int) string {var rs string = "<div>"if po.EnableFirstLastLink { //当首页,尾页都设定的时候,就显示
rs += "<a " + judgeDisable(po, totalpages, 0) + " href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(1) + "'>" + po.FirstPageText + "</a>"}if po.EnablePreNexLink { // disabled=\"disabled\"var a int = po.Currentpage - 1if po.Currentpage == 1 {a = 1}rs += "<a " + judgeDisable(po, totalpages, 0) + " href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(a) + "'>" + po.PrePageText + "</a>"}return rs
}/*** 尾部*/
func getFooter(po *PageOptions, totalpages int) string {var rs string = ""if po.EnablePreNexLink {var a int = po.Currentpage + 1if po.Currentpage == totalpages {a = totalpages}rs += "<a " + judgeDisable(po, totalpages, 1) + "  href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(a) + "'>" + po.NextPageText + "</a>"}if po.EnableFirstLastLink { //当首页,尾页都设定的时候,就显示rs += "<a " + judgeDisable(po, totalpages, 1) + " href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(totalpages) + "'>" + po.LastPageText + "</a>"}rs += "</div>"return rs
}/*** 设置默认值*/
func setDefault(po *PageOptions, totalpages int) *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.Currentpage >= totalpages {po.Currentpage = totalpages}if po.Currentpage <= 1 {po.Currentpage = 1}if po.LinkItemCount == 0 {po.LinkItemCount = 10}if po.PageSize == 0 {po.PageSize = 20}if len(po.ParamName) <= 0 {po.ParamName = "pno"}return po
}/***判断首页尾页  上一页下一页是否能用*/
func judgeDisable(po *PageOptions, totalpages int, h_f int) string {var rs string = ""//判断头部if h_f == 0 {if po.Currentpage == 1 {rs = "disabled=\"disabled\"  style='pointer-events:none;'"}} else {if po.Currentpage == totalpages {rs = "disabled=\"disabled\"  style='pointer-events:none;'"}}return rs
}