python新建一个Django项目（连接mysql数据库）

1，python访问mysql

2，python新建一个Django项目，并且创建新页面

3，修改hrsDjango\views.py，增加showDept方法：

from django.shortcuts import render, HttpResponse
import pymysql
from pymysql.cursors import DictCursor

def index(request):
    return render(request, 'testHello.html')

def showDept(request):
    # 部门类
    class Dept(object):
        def __init__(self, no, name, addr):
            self.no = no
            self.name = name
            self.addr = addr

    # 1，创建数据库连接对象
    con = pymysql.connect(
        host='localhost', port=3306,
        database='db_python', charset='utf8',
        user='root', password='python3', autocommit=True
    )
    try:
        deptList = []
        with con.cursor(cursor=DictCursor) as cur:
            cur.execute(
                'select deptno as no, deptname as name, deptaddr as addr from tb_dept'
            )
            deptList = cur.fetchall()
    finally:
        con.close()
    print(deptList)
    return render(request, 'testDept.html', {'deptList': deptList})

4，修改hrsDjango\urls.py，添加新的path：

from django.urls import path
from hrsDjango import views

urlpatterns = [
    path('', views.index),
    path('dept/', views.showDept)
]

5，在emp目录下新增一个html文件：testDept.html

    
    


    
部门信息：
    

    
        {% for dept in deptList %}
        
        {% endfor %}
    

        

            
编号
            
名称
            
地址
        

            
{
    { dept.no }}
            
{
    { dept.name }}
            
{
    { dept.addr }}
        

6，启动server，打开浏览器，在url栏输入：http://127.0.0.1:8000/hrs/dept

DB内容：