MongoDB 数据导入 mongoimport

时间:2021-10-11 06:40:05

1、概述

使用mongoimport命令可以把指定格式的文件导入到指定集合中。可导入JSON数据以及CSV数据。

2、语法

C:\mongo\bin>mongoimport --help
options:
--help produce help message
-v [ --verbose ] be more verbose (include multiple times for more
verbosity e.g. -vvvvv)
-h [ --host ] arg mongo host to connect to ( <set name>/s1,s2 for sets)
--port arg server port. Can also use --host hostname:port
--ipv6 enable IPv6 support (disabled by default)
-u [ --username ] arg username
-p [ --password ] arg password
--dbpath arg directly access mongod database files in the given
path, instead of connecting to a mongod server -
needs to lock the data directory, so cannot be used
if a mongod is currently accessing the same path
--directoryperdb if dbpath specified, each db is in a separate
directory
-d [ --db ] arg database to use
-c [ --collection ] arg collection to use (some commands)
-f [ --fields ] arg comma separated list of field names e.g. -f name,age
--fieldFile arg file with fields names - 1 per line
--ignoreBlanks if given, empty fields in csv and tsv will be ignored
--type arg type of file to import. default: json (json,csv,tsv)
--file arg file to import from; if not specified stdin is used
--drop drop collection first
--headerline CSV,TSV only - use first line as headers
--upsert insert or update objects that already exist
--upsertFields arg comma-separated fields for the query part of the
upsert. You should make sure this is indexed
--stopOnError stop importing at first error rather than continuing
--jsonArray load a json array, not one item per line. Currently
limited to 4MB.
说明:

-h:数据库宿主机IP

-u:数据库用户名

-p:数据库密码

-d:数据库名字

-c:集合名字
-f:指明导入的列

3、示例

首先删除emp中的数据。

db.emp.remove( );
导入JSON格式的数据:

MongoDB 数据导入 mongoimport

导入CSV格式的数据:

MongoDB 数据导入 mongoimport

说明:

-type:指明要导入的文件格式。

--headerline:指明不导入第一行,csv格式的文件第一行为列名。

-file:指明要导入的文件路径。