python连接mangodb

添加文档

from pymongo import MongoClient

# 连接服务器

conn = MongoClient("localhost", 27017)

# 连接数据库

db = conn.mydb

# 获取集合

collection = db.student

#添加文档

#collection.insert({"name":"abc", "age":19, "gender":1,"address":"北京", "isDelete":0})

collection.insert([{"name":"abc1", "age":19, "gender":1,"address":"北京", "isDelete":0},{"name":"abc2", "age":19, "gender":1,"address":"北京", "isDelete":0}])

#断开

conn.close()

查询文档

import pymongo

from pymongo import MongoClient

from bson.objectid import ObjectId#用于ID查询

# 连接服务器

conn = MongoClient("localhost", 27017)

# 连接数据库

db = conn.mydb

# 获取集合

collection = db.student

# 查询文档

# 查询部分文档

'''

res = collection.find({"age":{"$gt":18}})

for row in res:

    print(row)

    print(type(row))

'''

# 查询所有文档

'''

res = collection.find()

for row in res:

    print(row)

    print(type(row))

'''

#统计查询

'''

res = collection.find({"age":{"$gt":18}}).count()

print(res)

'''

#根据id查询

'''

res = collection.find({"_id":ObjectId("5995084b019723fe2a0d8d14")})

print(res[0])

'''

# 排序

'''

# res = collection.find().sort("age")#升序

res = collection.find().sort("age", pymongo.DESCENDING)

for row in res:

    print(row)

'''

# 分页查询

res = collection.find().skip(1).limit(1)

for row in res:

    print(row)

#断开

conn.close()

更新文档

from pymongo import MongoClient

# 连接服务器

conn = MongoClient("localhost", 27017)

# 连接数据库

db = conn.mydb

# 获取集合

collection = db.student

collection.update({"name":"lilei"},{"$set":{"age":25}})

#断开

conn.close()

删除文档

from pymongo import MongoClient

# 连接服务器

conn = MongoClient("localhost", 27017)

# 连接数据库

db = conn.mydb

# 获取集合

collection = db.student

collection.remove({"name":"lilei"})

#全部删除

collection.remove()

#断开

conn.close()