学校网站模板wordpress,软件开发外包是什么工作,WordPress缩略图标签,网站默认首页设置休息片刻之后#xff0c;我最近一直在使用Neo4j导入工具 #xff0c;并遇到了我最初不理解的有趣的错误消息。 我有一些CSV文件#xff0c;其中包含要导入Neo4j的节点。 它们的内容如下所示#xff1a; $ cat people_header.csv name:ID(Person)$ cat people.csv 我最近一直在使用Neo4j导入工具 并遇到了我最初不理解的有趣的错误消息。 我有一些CSV文件其中包含要导入Neo4j的节点。 它们的内容如下所示 $ cat people_header.csv name:ID(Person)$ cat people.csv Mark Michael Ryan Will Jennifer Karin$ cat companies_header.csv name:ID(Company)$ cat companies.csv Neo4j 我发现使用单独的头文件更容易因为我经常使用列名进行拼写错误并且更新单个行文件比打开数百万行文件并更改第一行更容易。 我运行以下命令从这些文件创建新的Neo4j数据库 $ ./bin/neo4j-admin import \--databaseblog.db \--modecsv \--nodes:Person people_header.csv,people.csv \--nodes:Company companies_heade.csv,companies.csv 导致此错误消息 Neo4j version: 3.3.3 Importing the contents of these files into /Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/data/databases/blog.db: Nodes::Person/Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/people_header.csv/Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/people.csv:Company/Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/companies.csv...Import error: Mixing specified and unspecified group belongings in a single import isnt supported Caused by:Mixing specified and unspecified group belongings in a single import isnt supported java.lang.IllegalStateException: Mixing specified and unspecified group belongings in a single import isnt supportedat org.neo4j.unsafe.impl.batchimport.input.Groups.getOrCreate(Groups.java:52)at org.neo4j.unsafe.impl.batchimport.input.csv.InputNodeDeserialization.initialize(InputNodeDeserialization.java:60)at org.neo4j.unsafe.impl.batchimport.input.csv.InputEntityDeserializer.initialize(InputEntityDeserializer.java:68)at org.neo4j.unsafe.impl.batchimport.input.csv.ParallelInputEntityDeserializer.lambda$new$0(ParallelInputEntityDeserializer.java:104)at org.neo4j.unsafe.impl.batchimport.staging.TicketedProcessing.lambda$submit$1(TicketedProcessing.java:103)at org.neo4j.unsafe.impl.batchimport.executor.DynamicTaskExecutor$Processor.run(DynamicTaskExecutor.java:237) 输出实际上有助于指出要从中导入哪些文件我们可以在“公司”部分下看到头文件丢失。 由于试图输入companies_header.csv当我做了错字的结果该工具现在会将companies.csv的第一行作为标题并因为我们还没有在该行指定的一组如公司个人我们收到这个错误。 让我们修复打字错误然后重试 $ ./bin/neo4j-admin import \--databaseblog.db \--modecsv \--nodes:Person people_header.csv,people.csv \--nodes:Company companies_header.csv,companies.csvNeo4j version: 3.3.3 Importing the contents of these files into /Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/data/databases/blog.db: Nodes::Person/Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/people_header.csv/Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/people.csv:Company/Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/companies_header.csv/Users/markneedham/Library/Application Support/Neo4j Desktop/Application/neo4jDatabases/database-b59e33d5-2060-4a5d-bdb8-0b9f6dc919fa/installation-3.3.3/companies.csv...IMPORT DONE in 1s 5ms. Imported:7 nodes0 relationships7 properties Peak memory usage: 480.00 MB 成功 翻译自: https://www.javacodegeeks.com/2018/03/neo4j-import-java-lang-illegalstateexception-mixing-specified-unspecified-group-belongings-single-import-isnt-supported.html