计算机毕业设计hadoop+spark+hive汽车评价情感分析 新能源汽车推荐系统 汽车数据分析可视化 新能源汽车推荐系统 汽车爬虫 机器学习 深度学习 人工智能 知识图谱 大数据毕业设计_hadoop关于汽车销售的分析基于hive

贵州商学院毕业论文（设计）任务书

*注：本表格在线填写审核。

核心算法代码分享如下：

from flask import Flask, request
import json
from flask_mysqldb import MySQL
 
# 创建应用对象
app = Flask(__name__)
app.config['MYSQL_HOST'] = 'bigdata'
app.config['MYSQL_USER'] = 'root'
app.config['MYSQL_PASSWORD'] = '123456'
app.config['MYSQL_DB'] = 'hive_car'
mysql = MySQL(app)  # this is the instantiation
 
 
@app.route('/tables01')
def tables01():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table01''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['province','num']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route('/tables02')
def tables02():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table02 ORDER BY ctime desc limit 7 ''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['ctime','num','rk']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route('/tables03')
def tables03():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table03 order by num desc''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['car_name','num']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route('/tables04')
def tables04():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table04''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['car_type','num']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route("/getmapcountryshowdata")
def getmapcountryshowdata():
    filepath = r"D:\\hadoop_spark_hive_mooc2024\\server\\data\\maps\\china.json"
    with open(filepath, "r", encoding='utf-8') as f:
        data = json.load(f)
        return json.dumps(data, ensure_ascii=False)
 
 
@app.route('/tables05')
def tables05():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table05''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['name','num']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route('/tables06')
def tables06():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table06''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['comment_result','num']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route('/tables07')
def tables07():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table07''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['car_name','car_rank']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route('/tables08')
def tables08():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table08''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['fw','num']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
@app.route('/tables09')
def tables09():
    cur = mysql.connection.cursor()
    cur.execute('''SELECT * FROM table09''')
    #row_headers = [x[0] for x in cur.description]  # this will extract row headers
    row_headers = ['car_name','score']  # this will extract row headers
    rv = cur.fetchall()
    json_data = []
    #print(json_data)
    for result in rv:
        json_data.append(dict(zip(row_headers, result)))
    return json.dumps(json_data, ensure_ascii=False)
 
 
if __name__ == "__main__":
    app.run(debug=False)