python flask實現分頁

結合mysql數據庫查詢，實現分頁效果

@user.route("/user_list",methods=['POST','GET'])
def user_list():
    p = g.args.get("p", '') #頁數
    show_shouye_status = 0  #顯示首頁狀態

    if p =='':
        p=1
    else:
        p=int(p)
        if p > 1:
            show_shouye_status = 1

    mdb = db_session()
    limit_start = (int(p)-1)*10#起始

    sql ="select * from page_text limit {0},10".format(limit_start)
    user_list=mdb.getMany(sql)

    sql="select count(id) as total from page_text"
    count = mdb.getOne(sql)['total'] #總記錄
    total = int(math.ceil(count/10.0)) #總頁數

    dic = get_page(total,p)
    datas={
        'user_list':user_list,
        'p': int(p),
        'total': total,
        'show_shouye_status': show_shouye_status,
        'dic_list': dic

    }
    return render_template("user_list.html",datas=datas)

其中get_page爲封裝的方法：

def get_page(total,p):
    show_page = 5   # 顯示的頁碼數
    pageoffset = 2  # 偏移量
    start = 1    #分頁條開始
    end = total #分頁條結束

    if total > show_page:
        if p > pageoffset:
            start = p - pageoffset
            if total > p + pageoffset:
                end = p + pageoffset
            else:
                end = total
        else:
            start = 1
            if total > show_page:
                end = show_page
            else:
                end = total
        if p + pageoffset > total:
            start = start - (p + pageoffset - end)
    #用於模版中循環
    dic = range(start, end + 1)
    return dic

若是這裏須要進行前端模板的拼接的話，能夠須要如下代碼（bootstrap）

<ul class="pagination"> {% if datas.show_shouye_status==1%} <li class=''><a href='/user/user_list?p=1'>首頁</a></li> <li class=''><a href='/user/user_list?p={{datas.p-1}}'>上一頁</a></li> {%endif%} {% for dic in datas.dic_list %} {% if dic==datas.p%} <li class="active"><a href="/user/user_list?p={{dic}}">{{dic}}</a></li> {%else%} <li><a href="/user/user_list?p={{dic}}">{{dic}}</a></li> {%endif%} {%endfor%} {% if datas.p < datas.total%} <li class=''><a href='/user/user_list?p={{datas.p+1}}'>下一頁</a></li> <li class=''><a href='/user/user_list?p={{datas.total}}'>尾頁</a></li> {%endif%} 共{{datas.total}}頁 </ul> 

bootstrap樣式 http://www.runoob.com/bootstrap/bootstrap-pagination.html

若是是返回給APP端的話，直接返回data數據就能夠了。

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