1、导出工具-mongoexport
Mongodb中的mongoexport工具可以把一个collection导出为JSON格式或者CSV格式文件。
(1)、导出为JSON文件
/opt/mongodb/bin/mongoexport -h 127.0.0.1 -u user -p password --port 27017 -d dev_test_db -c dev_test_history_location -q '{"handle" : "30487"}' -o history_location_30487.dat
(2)、导出为CSV文件
/opt/mongodb/bin/mongoexport -u user -p password --port 27017 -d dev_test_db -c dev_test_location --csv -q '{"handle" : "30439"}' -o dev_test_location_30439.csv --field type,handle,create_time
具体参数说明如下：
1 Options: 2 --help produce help message 3 -v [ --verbose ] be more verbose (include multiple times 4 for more verbosity e.g. -vvvvv) 5 --quiet silence all non error diagnostic 6 messages 7 --version print the program's version and exit 8 -h [ --host ] arg mongo host to connect to ( <set 9 name>/s1,s2 for sets) 10 --port arg server port. Can also use --host 11 hostname:port 12 --ipv6 enable IPv6 support (disabled by 13 default) 14 -u [ --username ] arg username 15 -p [ --password ] arg password 16 --authenticationDatabase arg user source (defaults to dbname) 17 --authenticationMechanism arg (=MONGODB-CR) 18 authentication mechanism 19 --gssapiServiceName arg (=mongodb) Service name to use when authenticating 20 using GSSAPI/Kerberos 21 --gssapiHostName arg Remote host name to use for purpose of 22 GSSAPI/Kerberos authentication 23 --dbpath arg directly access mongod database files 24 in the given path, instead of 25 connecting to a mongod server - needs 26 to lock the data directory, so cannot 27 be used if a mongod is currently 28 accessing the same path 29 --directoryperdb each db is in a separate directory 30 (relevant only if dbpath specified) 31 --journal enable journaling (relevant only if 32 dbpath specified) 33 -d [ --db ] arg database to use 34 -c [ --collection ] arg collection to use (some commands) 35 -f [ --fields ] arg comma separated list of field names 36 e.g. -f name,age 37 --fieldFile arg file with field names - 1 per line 38 -q [ --query ] arg query filter, as a JSON string, e.g., 39 '{x:{$gt:1}}' 40 --csv export to csv instead of json 41 -o [ --out ] arg output file; if not specified, stdout 42 is used 43 --jsonArray output to a json array rather than one 44 object per line 45 -k [ --slaveOk ] arg (=1) use secondaries for export if 46 available, default true 47 --forceTableScan force a table scan (do not use 48 $snapshot) 49 --skip arg (=0) documents to skip, default 0 50 --limit arg (=0) limit the numbers of documents 51 returned, default all 52 --sort arg sort order, as a JSON string, e.g., 53 '{x:1}'
2、导入工具-mongoimport
(1)、JSON格式文件导入
/opt/mongodb/bin/mongoimport -h 127.0.0.1 -u user -p password --port 27017 -d dev_test_db -c dev_test_history_location history_location_30487.dat
(2)、CSV格式文件导入
/opt/mongodb/bin/mongoimport -h 127.0.0.1 -u user -p password --port 27017 -d dev_test_db -c dev_test_history_location --type csv --headline --file history_location_30487.csv
参数说明：
-type: 指明要导入的文件格式
-headerline: 指明第一行是列名，不需要导入
-file： 指明要导入的文件
1 Options: 2 --help produce help message 3 -v [ --verbose ] be more verbose (include multiple times 4 for more verbosity e.g. -vvvvv) 5 --quiet silence all non error diagnostic 6 messages 7 --version print the program's version and exit 8 -h [ --host ] arg mongo host to connect to ( <set 9 name>/s1,s2 for sets) 10 --port arg server port. Can also use --host 11 hostname:port 12 --ipv6 enable IPv6 support (disabled by 13 default) 14 -u [ --username ] arg username 15 -p [ --password ] arg password 16 --authenticationDatabase arg user source (defaults to dbname) 17 --authenticationMechanism arg (=MONGODB-CR) 18 authentication mechanism 19 --gssapiServiceName arg (=mongodb) Service name to use when authenticating 20 using GSSAPI/Kerberos 21 --gssapiHostName arg Remote host name to use for purpose of 22 GSSAPI/Kerberos authentication 23 --dbpath arg directly access mongod database files 24 in the given path, instead of 25 connecting to a mongod server - needs 26 to lock the data directory, so cannot 27 be used if a mongod is currently 28 accessing the same path 29 --directoryperdb each db is in a separate directory 30 (relevant only if dbpath specified) 31 --journal enable journaling (relevant only if 32 dbpath specified) 33 -d [ --db ] arg database to use 34 -c [ --collection ] arg collection to use (some commands) 35 -f [ --fields ] arg comma separated list of field names 36 e.g. -f name,age 37 --fieldFile arg file with field names - 1 per line 38 --ignoreBlanks if given, empty fields in csv and tsv 39 will be ignored 40 --type arg type of file to import. default: json 41 (json,csv,tsv) 42 --file arg file to import from; if not specified 43 stdin is used 44 --drop drop collection first 45 --headerline first line in input file is a header 46 (CSV and TSV only) 47 --upsert insert or update objects that already 48 exist 49 --upsertFields arg comma-separated fields for the query 50 part of the upsert. You should make 51 sure this is indexed 52 --stopOnError stop importing at first error rather 53 than continuing 54 --jsonArray load a json array, not one item per 55 line. Currently limited to 16MB.