Python Flask预览PDF文件

 python flask预览PDF的接口

@app.route('/viewPdfById/',methods = ['get'])
def viewPdf(id):
    id = int(id)
    con = mysql.connect(host="192.168.10.71", port=3306, user="user", passwd="passwd", db="jibei", charset="utf8mb4")
    mycursor = con.cursor()
    # 从数据库根据id查询文件名字
    sql = "SELECT filename FROM table WHERE id = '%s' "%(id)
    mycursor.execute(sql)
    infos = mycursor.description
    fileds = [info[0] for info in infos]
    produce = mycursor.fetchone()
    # 将查询结果组织成字典的形式
    dic = dict(zip(fileds, produce))
    headers = ("Content-Disposition", f"inline;filename={dic['filename']}.pdf")  # 文件预览
    as_attachment = False
    file_path = 'C:\\Users\\user\\Desktop\\pdf\\{}'.format(str(dic['filename']))
    print(file_path)
    response = make_response(send_file(file_path, as_attachment=as_attachment))
    response.headers[headers[0]] = headers[1]
    return response

if __name__ == '__main__':
    app.config['JSON_AS_ASCII'] = False
    app.run(host='127.0.0.1', port=8888)

http://localhost:5000/viewPdfById/2

这个2就是PDF在库里面对应的id