python和mongodb简单交互

Posted 2021-01-28 裸奔的小鸵鸟

 

1.安装pymongo：

pip3 install pymongo

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2.pymongo的简单用法：

# /usr/bin/env python3
import pymongo


class Mymongo(object):
    def __init__(self, host, port=27017):
        try:
            self.conn = pymongo.MongoClient(host=host, port=port)
        except Exception as e:
            print("连接失败", e)
        else:
            print(\'连接成功\')

    def add(self, p_dict):
        res = self.conn.testdb.testcol.insert(p_dict)  # insert需要传入字典
        if res:
            print(\'插入成功\')

    def show(self):
        res = self.conn.testdb.testcol.find()  # find()返回一个可迭代对象
        for i in res:
            print(i)

    def mod(self, before, after):   # 需要传入字典
        res = self.conn.testdb.testcol.update(before, after)
        if res:
            print("修改成功", res)

    def rem(self, p_dict):
        res = self.conn.testdb.testcol.delete_one(p_dict)
        if res:
            print(\'删除成功\')

if __name__ == "__main__":
    mymongo = Mymongo(\'192.168.26.135\')
    mymongo.add({"name": \'Tom\'})
    mymongo.show()
    mymongo.mod({"name": \'Tom\'}, {"name": \'Jerry\'})
    mymongo.show()
    mymongo.rem({"name": \'Jerry\'})
    mymongo.show()