Python基础（API接口测试）

import flask,json,pymysql
from flask import request, jsonify, Response
from datetime import datetime
from flask_cors import CORS

db = pymysql.Connect(
    host='localhost',
    port=3306,
    user='root',
    passwd='24576946',
    db='school',
)

cursor = db.cursor()

server = flask.Flask(__name__)

#允许跨域访问
CORS(server, resources=r'/*')
class JSONResponse(Response):
    @classmethod
    def force_type(cls, response, environ=None):
        if isinstance(response, (list, dict)):
            response = jsonify(response)
            response.headers['Access-Control-Allow-Credentials'] = 'true'
            response.headers['Access-Control-Allow-Origin'] = '*'
            response.headers['Access-Control-Allow-Methods'] = 'PUT,GET,POST,DELETE'
            response.headers['Access-Control-Allow-Headers'] = 'X-Requested-With'
        return super(Response, cls).force_type(response, environ)
server.response_class = JSONResponse

#查询成绩列表
@server.route('/grade',methods=['get'])
def grade():

    sql = "SELECT id,name,email,point,regdate FROM grade"
    cursor.execute(sql)
    res = cursor.fetchall()

    keys = ['id','name','email','point','regdate']
    arr = []
    for index,item in enumerate(res):
        dict1 = {}
        for indexd,itemd in enumerate(item):
            if keys[indexd] == 'regdate':
                print(itemd)
                dict1[keys[indexd]] = itemd.strftime('%Y-%m-%d %H:%M')
            else:
                dict1[keys[indexd]] = itemd
        arr.append(dict1)             
    return json.dumps(arr,ensure_ascii=False)

#添加单个成绩
@server.route('/grade',methods=['post'])
def add():
    option = json.loads(request.get_data())

    if option['name'] == '':
        return jsonify({"code": 500,"error":'name不能为空！'})

    sql = "INSERT INTO grade (name, email, point, regdate) VALUES ( '%s', '%s', '%d','%s' )"   
    data = (option['name'], option['email'], option['point'],datetime.strftime(datetime.now(),'%Y-%m-%d %H:%M'))
    cursor.execute(sql % data)
    db.commit()       

    return jsonify({"code": 200,"data":{"name": option['name'], "email": option['email'], "point": option['point']}})
# add() 

#查询单个成绩
@server.route('/grade/<int:post_id>',methods=['get'])
def search(post_id):
    print(post_id)

    sql = "SELECT id,name,email,point,regdate FROM grade WHERE id = %s" % (post_id)
    cursor.execute(sql)
    res = cursor.fetchone()

    keys = ['id','name','email','point','regdate']
    dict1 = {}
    for index,item in enumerate(res):
        if keys[index] == 'regdate':
            dict1[keys[index]] = item.strftime('%Y-%m-%d %H:%M')
        else:
            dict1[keys[index]] = item                        

    return json.dumps(dict1,ensure_ascii=False)

#删除单个成绩
@server.route('/grade/<int:post_id>',methods=['post'])
def delete(post_id):
    print(post_id)

    sql = "DELETE FROM grade WHERE id = %s" % (post_id)
    cursor.execute(sql)
    res = cursor.fetchone()

    return jsonify({"code":200,"data":'删除成功！'})
# delete(24)

#查询老师列表
@server.route('/teacher',methods=['get'])    
def getTeacher():
    sql = "SELECT id,name,description,student,regdate FROM teacher"
    cursor.execute(sql)
    res = cursor.fetchall()

    keys = ['id','name','description','student','regdate']
    arr = []
    for index,item in enumerate(res):
        dict1 = {}
        for indexd,itemd in enumerate(item):
            if keys[indexd] == 'regdate':
                print(itemd)
                dict1[keys[indexd]] = itemd.strftime('%Y-%m-%d %H:%M')
            else:
                dict1[keys[indexd]] = itemd
        arr.append(dict1)

    return json.dumps(arr,ensure_ascii=False)

#查询老师有哪几个学生
@server.route('/teacher/<int:teacher_id>',methods=['get'])
def searchStudent(teacher_id):
    student_id = request.args.get('studentId')
    sql = "SELECT id,name,email,point FROM grade WHERE id = %s" % (student_id)   
    cursor.execute(sql)
    res = cursor.fetchone()

    keys = ['id','name','email','point']
    dict1 = {}
    for index,item in enumerate(res):
        dict1[keys[index]] = item                        
   
    return json.dumps(dict1,ensure_ascii=False)

server.run(port=9003,debug=True,host='192.168.1.195')

# 关闭连接
cursor.close()
db.close()