django 使用 可视化包-Pyechart

时间：2021-08-29 18:29:38

Echarts 是百度开源的一个数据可视化 JS 库，主要用于数据可视化。pyecharts 是一个用于生成 Echarts 图表的类库。实际上就是 Echarts 与 Python 的对接。

本次使用django2.0 和 pyecharts0.3.3

1. setttins.py 添加自己创建的app名称，和静态文件的路径

INSTALLED_APPS = [

    'django.contrib.admin',

    'django.contrib.auth',

    'django.contrib.contenttypes',

    'django.contrib.sessions',

    'django.contrib.messages',

    'django.contrib.staticfiles',

    'my_report',

]

DATABASES = {

    'default': {

        'ENGINE': 'django.db.backends.oracle',

        'NAME': 'devdb',

        'USER': 'hysh',

        'PASSWORD': 'hysh',

        'HOST': '192.168.191.3',

        'PORT': '1521',

    }

}

STATIC_URL = '/static/'

STATICFILES_DIRS = (

    os.path.join(BASE_DIR, 'static'),

)

　　　　

2.urls.py

from django.contrib import admin

from django.urls import path

from month_report import views

urlpatterns = [

    path('admin/', admin.site.urls),

    path('guo/', views.guo_report, name='index'),

]

　　

3.views.py

from django.shortcuts import render

from django.db import connection

from django.http import HttpResponse

from django.template import loader

from pyecharts import Bar, Geo

def exc_sql(sql):

    cursor = connection.cursor()

    cursor.execute(sql)

    result = cursor.fetchall()

    return result

def guo_report(request):

    # select    province, difi_re_num    from REPORT_REG

    ret = """select city, difi_re_num  from REPORT_REG a, province_to_city b where a.province=b.province"""

    data_list = exc_sql(ret)

    attr = [i[0] for i in data_list]

    value = [i[1] for i in data_list]

    geo = Geo("全国各地用户注册图", width=1200, height=600)

    geo.add("各省注册量", attr, value, type="effectScatter", border_color="#ffffff", symbol_size=2,

            is_label_show=True, label_text_color="#00FF00", label_pos="inside", symbol_color="yellow",

            geo_normal_color="#006edd", geo_emphasis_color="#0000ff")

    data = {'data': geo.render_embed()}

    return render(request, 'guo_report.html', data)

　　

4.guo_report.html

<!-- myfirstvis/templates/myfirstvis/pyecharts.html -->

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8">

    <title>MY-ECharts</title>

    <script src="http://oog4yfyu0.bkt.clouddn.com/echarts.min.js"></script>

    <script src="http://oog4yfyu0.bkt.clouddn.com/echarts-gl.js"></script>

    <script type="text/javascript " src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/china.js"></script>

    <script type="text/javascript " src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/world.js"></script>

    <script type="text/javascript " src="http://oog4yfyu0.bkt.clouddn.com/wordcloud.js"></script>

</head>

<body>

  {{data|safe}}

</body>

</html>

　　

效果图：

django 使用 可视化包-Pyechart

可参考：https://zhuanlan.zhihu.com/p/28424938

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