import pymysql
import json

# 建立数据库连接
connection = pymysql.connect(
    host='rm-bp11ky2z5f34d2949fo.mysql.rds.aliyuncs.com',
    user='fabiao_r',
    password='f5u1w8nfb3b',
    database='fabiao',
    cursorclass=pymysql.cursors.DictCursor  # 返回字典形式的结果，方便操作
)

try:
    with connection.cursor() as cursor:
        # 执行查询
        sql = "SELECT * FROM spider_latest_journal_paper_list"
        cursor.execute(sql)

        # 获取查询结果
        result = cursor.fetchall()
        print(len(result))

        # 处理结果

        # for row in result:
        #     print(row)

        with open("data/doctor_2018_2021.json", "w", encoding="utf-8") as f:
            f.write(json.dumps(result, indent=2, ensure_ascii=False))

finally:
    # 关闭连接
    connection.close()