版本：Next

SftpFile

Sftp文件数据源连接器

支持的引擎

Spark
Flink
SeaTunnel Zeta

主要特性

描述

从sftp文件服务器读取数据。

支持的数据源信息

为了使用SftpFile连接器，需要以下依赖项。可以通过install-plugin.sh或从Maven中央仓库下载。

数据源	支持的版本	依赖
SftpFile	universal	下载

提示

如果您使用spark/flink，为了使用此连接器，您必须确保您的spark/flink集群已经集成了hadoop。测试过的hadoop版本是2.x。

如果您使用SeaTunnel引擎，它在您下载和安装SeaTunnel引擎时会自动集成hadoop jar。您可以检查${SEATUNNEL_HOME}/lib下的jar包来确认这一点。

为了支持更多文件类型，我们做了一些权衡，因此我们使用HDFS协议进行内部访问Sftp，此连接器需要一些hadoop依赖项。它只支持hadoop版本2.9.X+。

数据类型映射

文件没有特定的类型列表，我们可以通过在配置中指定Schema来指示相应的数据需要转换为哪种SeaTunnel数据类型。

SeaTunnel数据类型
STRING
SHORT
INT
BIGINT
BOOLEAN
DOUBLE
DECIMAL
FLOAT
DATE
TIME
TIMESTAMP
BYTES
ARRAY
MAP

数据源选项

名称	类型	是否必需	默认值	描述
host	String	是	-	目标sftp主机是必需的
port	Int	是	-	目标sftp端口是必需的
user	String	是	-	目标sftp用户名是必需的
password	String	是	-	目标sftp密码是必需的
path	String	是	-	源文件路径。
file_format_type	String	是	-	请查看下面的#file_format_type
file_filter_pattern	String	否	-	过滤模式，用于过滤文件。
filename_extension	string	否	-	过滤文件名扩展名，用于过滤具有特定扩展名的文件。例如：`csv` `.txt` `json` `.xml`。
delimiter/field_delimiter	String	否	\001	delimiter参数将在2.3.5版本后弃用，请使用field_delimiter代替。字段分隔符，用于告诉连接器在读取文本文件时如何切分字段。默认`\001`，与hive的默认分隔符相同
parse_partition_from_path	Boolean	否	true	控制是否从文件路径解析分区键和值例如，如果您从路径`oss://hadoop-cluster/tmp/seatunnel/parquet/name=tyrantlucifer/age=26`读取文件文件中的每条记录数据都将添加这两个字段： name age tyrantlucifer 26 提示：不要在schema选项中定义分区字段
date_format	String	否	yyyy-MM-dd	日期类型格式，用于告诉连接器如何将字符串转换为日期，支持以下格式： `yyyy-MM-dd` `yyyy.MM.dd` `yyyy/MM/dd` 默认`yyyy-MM-dd`
datetime_format	String	否	yyyy-MM-dd HH:mm:ss	日期时间类型格式，用于告诉连接器如何将字符串转换为日期时间，支持以下格式： `yyyy-MM-dd HH:mm:ss` `yyyy.MM.dd HH:mm:ss` `yyyy/MM/dd HH:mm:ss` `yyyyMMddHHmmss` 默认`yyyy-MM-dd HH:mm:ss`
time_format	String	否	HH:mm:ss	时间类型格式，用于告诉连接器如何将字符串转换为时间，支持以下格式： `HH:mm:ss` `HH:mm:ss.SSS` 默认`HH:mm:ss`
skip_header_row_number	Long	否	0	跳过前几行，但仅适用于txt和csv。例如，设置如下： `skip_header_row_number = 2` 然后SeaTunnel将跳过源文件的前2行
read_columns	list	否	-	数据源的读取列列表，用户可以使用它来实现字段投影。
sheet_name	String	否	-	读取工作簿的工作表，仅在file_format为excel时使用。
xml_row_tag	string	否	-	指定XML文件中数据行的标签名称，仅在file_format为xml时使用。
xml_use_attr_format	boolean	否	-	指定是否使用标签属性格式处理数据，仅在file_format为xml时使用。
csv_use_header_line	boolean	否	false	是否使用标题行来解析文件，仅在file_format为`csv`且文件包含符合RFC 4180的标题行时使用
schema	Config	否	-	请查看下面的#schema
compress_codec	String	否	None	文件的压缩编解码器，支持的详细信息如下所示： - txt: `lzo` `None` - json: `lzo` `None` - csv: `lzo` `None` - orc: `lzo` `snappy` `lz4` `zlib` `None` - parquet: `lzo` `snappy` `lz4` `gzip` `brotli` `zstd` `None` 提示：excel类型不支持任何压缩格式
archive_compress_codec	string	否	none
encoding	string	否	UTF-8
null_format	string	否	-	仅在file_format_type为text时使用。null_format用于定义哪些字符串可以表示为null。例如：`\N`
binary_chunk_size	int	否	1024	仅在file_format_type为binary时使用。读取二进制文件的块大小（以字节为单位）。默认为1024字节。较大的值可能会提高大文件的性能，但会使用更多内存。
binary_complete_file_mode	boolean	否	false	仅在file_format_type为binary时使用。是否将完整文件作为单个块读取，而不是分割成块。启用时，整个文件内容将一次性读入内存。默认为false。
common-options		否	-	数据源插件通用参数，请参考数据源通用选项了解详情。

file_filter_pattern [string]

过滤模式，用于过滤文件。

该模式遵循标准正则表达式。详情请参考 https://en.wikipedia.org/wiki/Regular_expression。以下是一些示例。

文件结构示例：

/data/seatunnel/20241001/report.txt
/data/seatunnel/20241007/abch202410.csv
/data/seatunnel/20241002/abcg202410.csv
/data/seatunnel/20241005/old_data.csv
/data/seatunnel/20241012/logo.png

匹配规则示例：

示例1：匹配所有.txt文件，正则表达式：

/data/seatunnel/20241001/.*\.txt

此示例匹配的结果是：

/data/seatunnel/20241001/report.txt

示例2：匹配所有以abc开头的文件，正则表达式：

/data/seatunnel/20241002/abc.*

此示例匹配的结果是：

/data/seatunnel/20241007/abch202410.csv
/data/seatunnel/20241002/abcg202410.csv

示例3：匹配所有以abc开头，且第四个字符是h或g的文件，正则表达式：

/data/seatunnel/20241007/abc[h,g].*

此示例匹配的结果是：

/data/seatunnel/20241007/abch202410.csv

示例4：匹配以202410开头的第三级文件夹和以.csv结尾的文件，正则表达式：

/data/seatunnel/202410\d*/.*\.csv

此示例匹配的结果是：

/data/seatunnel/20241007/abch202410.csv
/data/seatunnel/20241002/abcg202410.csv
/data/seatunnel/20241005/old_data.csv

file_format_type [string]

文件类型，支持以下文件类型： text csv parquet orc json excel xml binary 如果您将文件类型指定为json，您还应该指定schema选项来告诉连接器如何将数据解析为您想要的行。例如：上游数据如下：

{"code":  200, "data":  "get success", "success":  true}

您也可以在一个文件中保存多条数据，并用换行符分隔：

{"code":  200, "data":  "get success", "success":  true}
{"code":  300, "data":  "get failed", "success":  false}

您应该按如下方式指定schema：

schema {
    fields {
        code = int
        data = string
        success = boolean
    }
}

连接器将生成如下数据： | code | data | success | |------|-------------|---------| | 200 | get success | true | 如果您将文件类型指定为parquet orc，则不需要schema选项，连接器可以自动找到上游数据的schema。如果您将文件类型指定为text csv，您可以选择指定schema信息或不指定。例如，上游数据如下：

tyrantlucifer#26#male

如果您不指定数据schema，连接器将把上游数据视为如下： | content | |-----------------------| | tyrantlucifer#26#male | 如果您指定数据schema，除了CSV文件类型外，您还应该指定选项field_delimiter 您应该按如下方式指定schema和分隔符：

field_delimiter = "#"
schema {
    fields {
        name = string
        age = int
        gender = string
    }
}

连接器将生成如下数据： | name | age | gender | |---------------|-----|--------| | tyrantlucifer | 26 | male |

如果您将文件类型指定为binary，SeaTunnel可以同步任何格式的文件，例如压缩包、图片等。简而言之，任何文件都可以同步到目标位置。在此要求下，您需要确保源和接收器同时使用binary格式进行文件同步。

compress_codec [string]

文件的压缩编解码器，支持的详细信息如下所示：

txt: lzo none
json: lzo none
csv: lzo none
orc/parquet: 自动识别压缩类型，无需额外设置。

archive_compress_codec [string]

归档文件的压缩编解码器，支持的详细信息如下所示：

archive_compress_codec	file_format	archive_compress_suffix
ZIP	txt,json,excel,xml	.zip
TAR	txt,json,excel,xml	.tar
TAR_GZ	txt,json,excel,xml	.tar.gz
GZ	txt,json,excel,xml	.gz
NONE	all	.*

注意：gz压缩的excel文件需要压缩原始文件或指定文件后缀，例如e2e.xls ->e2e_test.xls.gz

encoding [string]

仅在file_format_type为json、text、csv、xml时使用。要读取的文件的编码。此参数将由Charset.forName(encoding)解析。

binary_chunk_size [int]

仅在file_format_type为binary时使用。

读取二进制文件的块大小（以字节为单位）。默认为1024字节。较大的值可能会提高大文件的性能，但会使用更多内存。

binary_complete_file_mode [boolean]

仅在file_format_type为binary时使用。

是否将完整文件作为单个块读取，而不是分割成块。启用时，整个文件内容将一次性读入内存。默认为false。

schema [config]

fields [Config]

上游数据的schema。

如何创建Sftp数据同步作业

以下示例演示如何创建从sftp读取数据并在本地客户端打印的数据同步作业：

# 设置要执行的任务的基本配置
env {
  parallelism = 1
  job.mode = "BATCH"
}

# 创建连接到sftp的数据源
source {
  SftpFile {
    host = "sftp"
    port = 22
    user = seatunnel
    password = pass
    path = "tmp/seatunnel/read/json"
    file_format_type = "json"
    plugin_output = "sftp"
    schema = {
      fields {
        c_map = "map<string, string>"
        c_array = "array<int>"
        c_string = string
        c_boolean = boolean
        c_tinyint = tinyint
        c_smallint = smallint
        c_int = int
        c_bigint = bigint
        c_float = float
        c_double = double
        c_bytes = bytes
        c_date = date
        c_decimal = "decimal(38, 18)"
        c_timestamp = timestamp
        c_row = {
          C_MAP = "map<string, string>"
          C_ARRAY = "array<int>"
          C_STRING = string
          C_BOOLEAN = boolean
          C_TINYINT = tinyint
          C_SMALLINT = smallint
          C_INT = int
          C_BIGINT = bigint
          C_FLOAT = float
          C_DOUBLE = double
          C_BYTES = bytes
          C_DATE = date
          C_DECIMAL = "decimal(38, 18)"
          C_TIMESTAMP = timestamp
        }
      }
    }
  }
}

# 控制台打印读取的sftp数据
sink {
  Console {
    parallelism = 1
  }
}

多表

SftpFile {
  tables_configs = [
    {
      schema {
        table = "student"
        fields {
          name = string
          age = int
        }
      }
      path = "/tmp/seatunnel/sink/text"
      host = "192.168.31.48"
      port = 21
      user = tyrantlucifer
      password = tianchao
      file_format_type = "parquet"
    },
    {
      schema {
        table = "teacher"
        fields {
          name = string
          age = int
        }
      }
      path = "/tmp/seatunnel/sink/text"
      host = "192.168.31.48"
      port = 21
      user = tyrantlucifer
      password = tianchao
      file_format_type = "parquet"
    }
  ]
}

过滤文件

env {
  parallelism = 1
  job.mode = "BATCH"
}

source {
  SftpFile {
    host = "sftp"
    port = 22
    user = seatunnel
    password = pass
    path = "tmp/seatunnel/read/json"
    file_format_type = "json"
    plugin_output = "sftp"
    // 文件示例 abcD2024.csv
    file_filter_pattern = "abc[DX]*.*"
  }
}

sink {
  Console {
  }
}

变更日志

Change Log

Change	Commit	Version
[Improve][Connector-V2] Support maxcompute sink writer with timestamp field type (#9234)	https://github.com/apache/seatunnel/commit/a513c495e3	dev
[improve] update file connectors config (#9034)	https://github.com/apache/seatunnel/commit/8041d59dc2	2.3.11
[Improve][File] Add row_delimiter options into text file sink (#9017)	https://github.com/apache/seatunnel/commit/92aa855a34	2.3.11
Revert " [improve] update localfile connector config" (#9018)	https://github.com/apache/seatunnel/commit/cdc79e13ad	2.3.10
[improve] update localfile connector config (#8765)	https://github.com/apache/seatunnel/commit/def369a85f	2.3.10
[Feature][Connector-V2] Add `filename_extension` parameter for read/write file (#8769)	https://github.com/apache/seatunnel/commit/78b23c0ef5	2.3.10
[Improve] restruct connector common options (#8634)	https://github.com/apache/seatunnel/commit/f3499a6eeb	2.3.10
[Hotfix][Connector-V2][SFTP] Add quote to sftp file names with wildcard characters (#8501)	https://github.com/apache/seatunnel/commit/c5751b001b	2.3.10
[Feature][Connector-V2] Support create emtpy file when no data (#8543)	https://github.com/apache/seatunnel/commit/275db78918	2.3.10
[Feature][Connector-V2] Support single file mode in file sink (#8518)	https://github.com/apache/seatunnel/commit/e893deed50	2.3.10
[Improve][Connector-V2] Add some debug log when create dir in (S)FTP (#8286)	https://github.com/apache/seatunnel/commit/8687bb8e91	2.3.9
[Feature][File] Support config null format for text file read (#8109)	https://github.com/apache/seatunnel/commit/2dbf02df47	2.3.9
[Feature][Connector-V2]Sftp file source support multiple table (#7824)	https://github.com/apache/seatunnel/commit/cfb8760f58	2.3.9
[Feature][Restapi] Allow metrics information to be associated to logical plan nodes (#7786)	https://github.com/apache/seatunnel/commit/6b7c53d03c	2.3.9
[Feature][Connector-V2] sftp file sink suport multiple table and save mode (#7668)	https://github.com/apache/seatunnel/commit/dc4b9898f7	2.3.8
[Improve][Connector-V2] Support read archive compress file (#7633)	https://github.com/apache/seatunnel/commit/3f98cd8a16	2.3.8
[Improve][Files] Support write fixed/timestamp as int96 of parquet (#6971)	https://github.com/apache/seatunnel/commit/1a48a9c493	2.3.6
[Feature][Connector-V2] Supports the transfer of any file (#6826)	https://github.com/apache/seatunnel/commit/c1401787b3	2.3.6
Add support for XML file type to various file connectors such as SFTP, FTP, LocalFile, HdfsFile, and more. (#6327)	https://github.com/apache/seatunnel/commit/ec533ecd9a	2.3.5
[BugFix][Connector-file-sftp] Fix SFTPInputStream.close does not correctly trigger the closing of the file stream (#6323) (#6329)	https://github.com/apache/seatunnel/commit/eee881af91	2.3.5
[Test][E2E] Add thread leak check for connector (#5773)	https://github.com/apache/seatunnel/commit/1f2f3fc5f0	2.3.4
[Refactor][File Connector] Put Multiple Table File API to File Base Module (#6033)	https://github.com/apache/seatunnel/commit/c324d663b4	2.3.4
Support using multiple hadoop account (#5903)	https://github.com/apache/seatunnel/commit/d69d88d1aa	2.3.4
[Improve][Common] Introduce new error define rule (#5793)	https://github.com/apache/seatunnel/commit/9d1b2582b2	2.3.4
[Improve][connector-file] unifiy option between file source/sink and update document (#5680)	https://github.com/apache/seatunnel/commit/8d87cf8fc4	2.3.4
[Feature] Support `LZO` compress on File Read (#5083)	https://github.com/apache/seatunnel/commit/a4a1901096	2.3.4
[Feature][Connector-V2][File] Support read empty directory (#5591)	https://github.com/apache/seatunnel/commit/1f58f224a0	2.3.4
Support config column/primaryKey/constraintKey in schema (#5564)	https://github.com/apache/seatunnel/commit/eac76b4e50	2.3.4
[Feature][File Connector]optionrule FILE_FORMAT_TYPE is text/csv ,add parameter BaseSinkConfig.ENABLE_HEADER_WRITE: #5566 (#5567)	https://github.com/apache/seatunnel/commit/0e02db768d	2.3.4
[Improve][CheckStyle] Remove useless 'SuppressWarnings' annotation of checkstyle. (#5260)	https://github.com/apache/seatunnel/commit/51c0d709ba	2.3.4
[Feature][Connector V2][File] Add config of 'file_filter_pattern', which used for filtering files. (#5153)	https://github.com/apache/seatunnel/commit/a3c13e59eb	2.3.3
[Bug Fix][seatunnel-connectors-v2][SFTP] Fix incorrect exception handling logic (#4720)	https://github.com/apache/seatunnel/commit/dc350e67c3	2.3.2
[Feature][ConnectorV2]add file excel sink and source (#4164)	https://github.com/apache/seatunnel/commit/e3b97ae5d2	2.3.2
Change file type to file_format_type in file source/sink (#4249)	https://github.com/apache/seatunnel/commit/973a2fae3c	2.3.1
Merge branch 'dev' into merge/cdc	https://github.com/apache/seatunnel/commit/4324ee1912	2.3.1
[Improve][Project] Code format with spotless plugin.	https://github.com/apache/seatunnel/commit/423b583038	2.3.1
[improve][api] Refactoring schema parse (#4157)	https://github.com/apache/seatunnel/commit/b2f573a13e	2.3.1
[Improve][build] Give the maven module a human readable name (#4114)	https://github.com/apache/seatunnel/commit/d7cd601051	2.3.1
[Improve][Project] Code format with spotless plugin. (#4101)	https://github.com/apache/seatunnel/commit/a2ab166561	2.3.1
[Feature][Connector-V2][File] Support compress (#3899)	https://github.com/apache/seatunnel/commit/55602f6b1c	2.3.1
[Feature][Connector] add get source method to all source connector (#3846)	https://github.com/apache/seatunnel/commit/417178fb84	2.3.1
[Improve][Connector-V2][File] Improve file connector option rule and document (#3812)	https://github.com/apache/seatunnel/commit/bd76077669	2.3.1
[Feature][Shade] Add seatunnel hadoop3 uber (#3755)	https://github.com/apache/seatunnel/commit/5a024bdf8f	2.3.0
[Hotfix][OptionRule] Fix option rule about all connectors (#3592)	https://github.com/apache/seatunnel/commit/226dc6a119	2.3.0
[Improve][Connector-V2][File] Unified excetion for file source & sink connectors (#3525)	https://github.com/apache/seatunnel/commit/031e8e263c	2.3.0
[Feature][Connector-V2][File] Add option and factory for file connectors (#3375)	https://github.com/apache/seatunnel/commit/db286e8631	2.3.0
[Improve][Connector-V2][File] Improve code structure (#3238)	https://github.com/apache/seatunnel/commit/dd5c353881	2.3.0
[Connector-V2][ElasticSearch] Add ElasticSearch Source/Sink Factory (#3325)	https://github.com/apache/seatunnel/commit/38254e3f26	2.3.0
[Feature][Connector-V2][SFTP] Add SFTP file source & sink connector (#3006)	https://github.com/apache/seatunnel/commit/9e496383b8	2.3.0

SftpFile

支持的引擎​

主要特性​

描述​

支持的数据源信息​

数据类型映射​

数据源选项​

file_filter_pattern [string]​

file_format_type [string]​

compress_codec [string]​

archive_compress_codec [string]​

encoding [string]​

binary_chunk_size [int]​

binary_complete_file_mode [boolean]​

schema [config]​

fields [Config]​

如何创建Sftp数据同步作业​

多表​

过滤文件​

变更日志​

支持的引擎

主要特性

描述

支持的数据源信息

数据类型映射

数据源选项

file_filter_pattern [string]

file_format_type [string]

compress_codec [string]

archive_compress_codec [string]

encoding [string]

binary_chunk_size [int]

binary_complete_file_mode [boolean]

schema [config]

fields [Config]

如何创建Sftp数据同步作业

多表

过滤文件

变更日志