java导入数据 neo4j,使用Java将数据从Neo4j导出到CSV

what is the best methodology to export data from Neo4j to CSV, I had imported data from csv to neo4j using CSV importer in the link https://github.com/sroycode/neo4j-import.

I had performed some operations on the data, i want to get back the query results into the csv, can anyone suggest me the solution.

iam using neo4j 1.9.3 and java 1.6

解决方案

A short snippet in Groovy doing this:

@Grab(group="org.neo4j", module="neo4j-cypher", version="1.9")

@Grab(group='net.sf.opencsv', module='opencsv', version='2.3')

import org.neo4j.kernel.EmbeddedGraphDatabase

import org.neo4j.cypher.javacompat.ExecutionEngine

import au.com.bytecode.opencsv.CSVWriter

assert args, "specify location of graph.db and cypher statement"

def db = new org.neo4j.kernel.EmbeddedGraphDatabase(args[0])

def ee = new ExecutionEngine(db)

def result = ee.execute(args[1])

def columns = result.columns()

System.out.withWriter { writer ->

CSVWriter csv = new CSVWriter(writer)

csv.writeNext(columns as String[])

for (def row in result) {

def values = columns.collect {row[it]}

csv.writeNext(values as String[])

}

}

db.shutdown()

Of course opencsv can be used in a pure Java environment as well.