1.主页显示
登陆成功之后传两个参数，用户id和用户名称到主页动态显示到主页右侧，
image
变为
image
views.py中代码：
user_id = request.session.get('userid')
nick_name = request.session.get('nick_name')
index主页代码：
{% if nick_name == None %}
{#头部用户#} 注册
{#头部退出#} 登录
{% else %}
{#头部用户#} {{ nick_name }}
{#头部退出#} 退出
{% endif %}
主页显示效果
image
views.py部分代码：
def welcomeToIndex(request):
user_id = request.session.get('userid')
nick_name = request.session.get('nick_name')
if user_id is not None:
user = User.objects.get(id=user_id)
goods_list = Goods.objects.filter().exclude(user=user).order_by('-create_time')
else:
goods_list = Goods.objects.filter().order_by('-create_time')
return render(request, 'index.html', {"goods_list": goods_list, "nick_name": nick_name})
主页部分代码：循环goods_list，显示其中内容
{#分页#}
{% for foo in goods_list %}
{% endfor %}
2.主页模糊搜索
1.模糊搜索效果
image
2.views.py部分代码
__contains是用来模糊搜索的，注意两个下划线！！！
def search(request):
flag = 1
key = request.GET.get("key")
print("key" + key)
nick_name = request.session.get('nick_name')
goods_list = Goods.objects.filter(name__contains=key).order_by('-create_time')
return render(request, 'index.html', {"goods_list": goods_list, "nick_name": nick_name})
3.函数部分
function search_key() {
var key = $("#input_pass").val();
window.location.href = "search?key=" + key;
}
3.发布页面后台
1.图片处理
点击上传图片，选中图片，页面上显示图片，并且uuid函数处理图片，生成不重复的图片名字存到media文件夹
1.效果图
image.png
2.文件选中图片改变，显示在页面上，部分代码：
$(function () {
layui.use(['layer', 'form'], function () {
var layer = layui.layer
, form = layui.form;
form.render();
});
$("#action_show_goods").change(function () {
var $file = $(this);
var fileObj = $file[0];
var windowURL = window.URL || window.webkitURL;
var dataURL;
var $img = $("#img_show");
if (fileObj && fileObj.files && fileObj.files[0]) {
dataURL = windowURL.createObjectURL(fileObj.files[0]);
$img.attr('src', dataURL);
} else {
dataURL = $file.val();
var imgObj = document.getElementById("preview");
// 两个坑:
// 1、在设置filter属性时，元素必须已经存在在DOM树中，动态创建的Node，也需要在设置属性前加入到DOM中，先设置属性在加入，无效；
// 2、src属性需要像下面的方式添加，上面的两种方式添加，无效；
imgObj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)";
imgObj.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = dataURL;
}
});
});
3.创建media文件和app同等级
在url中加入
re_path(r'^media/(?P.*)$', serve, {'document_root': MEDIA_ROOT}),
setting.py里面加入：
MEDIA_ROOT = os.path.join(BASE_DIR, 'media').replace('\\', '/') # 设置静态文件路径为主目录下的media文件夹
MEDIA_URL = '/media/' # url映射
views.py中代码
# 利用UUID生成不重复的图片名，避免上传相同的名字的图片被覆盖
def do_file_name(file_name):
return str(uuid.uuid1()) + os.path.splitext(file_name)[1]
2.ajiax form提交
views.py部分代码如下：
用为是ajax提交，加上@csrf_exempt
@csrf_exempt
def issue_form(request):
flag = 0
if request.method == "POST":
# 里面的参数是name
goods_name = request.POST.get("goods_name")
print(goods_name)
goods_detal = request.POST.get("goods_detal")
print(goods_detal)
goods_price = request.POST.get("goods_price")
print(goods_price)
categorys = request.POST.get("categorys")
print(categorys)
transactionMode = request.POST.get("transactionMode")
print(transactionMode)
address = request.POST.get("address")
print(address)
pho_num = request.POST.get("pho_num")
print(pho_num)
qq_num = request.POST.get("qq_num")
print(qq_num)
wechat_num = request.POST.get("wechat_num")
print(wechat_num)
file_img = request.FILES.get('file_img')
print(file_img.name)
print(file_img.size)
file_chunks = file_img.chunks()
# 文件保存的路径
# /images/qwyuqguweuq.jpg
file_name = os.path.join("images", do_file_name(file_img.name)).replace('\\', '/')
# 完整的路径
file_path = os.path.join(settings.MEDIA_ROOT, file_name).replace('\\', '/')
with open(file_path, "wb")as file:
for chunk in file_chunks:
file.write(chunk)
new_issue = Goods()
new_issue.name = goods_name
new_issue.detal = goods_detal
new_issue.price = goods_price
new_issue.master_pho = pho_num
new_issue.master_qqnum = qq_num
new_issue.master_wechatnum = wechat_num
new_issue.trading = transactionMode
userid = request.session.get('userid')
new_issue.user = User.objects.get(id=userid)
sort = Sort.objects.get(id=categorys)
print(sort.__dict__)
new_issue.sort = sort
new_issue.img = file_name
try:
new_issue.save()
flag = 1
except Exception as e:
print(e)
return HttpResponse(flag)
发布页面ajax函数部分代码：
function issue() {
var formData = new FormData($("#goods_form")[0]);
;
if ($("goods_name").val() == "") {
layer.msg("请输入商品名称");
return;
}
if ($("#goods_price").val() == "") {
layer.msg("请输入价格");
return;
}
if ($("#pho_num").val() == "") {
layer.msg("请输入电话");
return;
}
$.ajax({
type: "POST",
url: "issue_form",
{#上传表单#}
data: formData,
dataType: "json",
processData: false,
contentType: false,
success: function (data) {
console.log(data);
if (data == 1) {
layer.msg("发布成功");
}
else if(data == 0) {
layer.msg("数据储存失败");
}
},
error: function () {
layer.msg("发生未知错误");
}
});
}
4.商品详情页动态显示
显示效果图
image.png
views.py部分代码如下：
def togood_detail_page(request):
nick_name = request.session.get('nick_name')
id = request.GET.get('id')
print("id: " + id)
goods_detal = Goods.objects.get(id=id)
return render(request, "good_detail_page.html", {"goods_detail": goods_detal, "nick_name": nick_name})
显示代码，花括号显示出来即可，注意{{ MEDIA_URL }}文件目录怎么写
举个例子：
发布于：{{ goods_detail.create_time }}
{{ goods_detail.name }}
5.登出
views.py部分代码如下：
def logout(request):
del request.session["nick_name"]
del request.session["userid"]
return HttpResponseRedirect("index")