这个文章针对不懂mongodb的小伙伴进行简单指导

下面是python来操作mangodb

# author: liangzilong
from pymongo import MongoClient

# 连接到MongoDB服务器
client = MongoClient('mongodb://localhost:27017/')

# 选择数据库  一个数据库可以有多个集合
db = client['test_database']

# 选择集合
collection = db['test_collection']

def insert_data():
    # 插入单个文档
    document = {"name": "Alice", "age": 25, "city": "New York"}
    collection.insert_one(document)

    # 插入多个文档
    documents = [
        {"name": "Bob", "age": 30, "city": "San Francisco"},
        {"name": "Charlie", "age": 35, "city": "Boston"},
        {"name": "xx", "age": 35, "city": "Boston", "mix": {"name": "zs", 'age': "11"}}
    ]
    collection.insert_many(documents)

def search_data():
    # 查询单个文档
    result = collection.find_one({"name": "Alice"})
    print(result)

    # 查询多个文档
    results = collection.find({"city": "San Francisco"})

    # 查询所有文档
    results = collection.find({})
    for doc in results:
        print(doc)


def filter_data():
    """
    gt gte lt lte  and  according specific field find
    :return:
    """
    documents = collection.find({"age": {"$gt": 25}})
    for doc in documents:
        print(doc)


def update_data():
    """
    更新单个文档使用update_one方法，更新多个文档使用update_many方法。
    :return:
    """
    # 更新文档
    collection.update_one({"name": "Alice"}, {"$set": {"age": 26}})
    # 更新多个文档
    collection.update_many({"city": "San Francisco"}, {"$set": {"age": 31}})


def delete_data():
    # 删除单个文档
    collection.delete_one({"name": "Alice"})

    # 删除多个文档
    collection.delete_many({"city": "San Francisco"})


def del_collection():
    """
    delete one collection
    :return:
    """
    db.drop_collection('test_collection')


def delete_collection_data():
    """
    delete collection all data
    :return:
    """

    result = collection.delete_many({})

    # 输出删除的文档数量
    print(f"Deleted {result.deleted_count} documents.")


def find_by_id():
    from bson import ObjectId
    # 查找单个文档 存在返回json 不存在返回None
    document = collection.find_one({"_id": ObjectId("665eb56104189b983e534668")})
    print(document)

mongodb从入门到精通

这个文章针对不懂mongodb的小伙伴进行简单指导

下面是python来操作mangodb