<!doctype html>Linux服務器上搭建neo4j圖資料庫
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Linux服務器上搭建neo4j圖資料庫
一、預先檢查jbk版本
使用命令
java -version
版本要求1.8及以上，不滿足要求可查閱文章
https://www.jianshu.com/p/44c6c9a3781f 進行升級
二、下載neo4j圖資料庫
liunx環境Neo4j下載地址：
https://neo4j.com/download/other-releases/#releases
(社區版免費)
可下載后上傳至服務器，也可在服務器中直接使用命令進行下載
curl -O http://dist.neo4j.org/neo4j-community-3.5.25-unix.tar.gz
其中 3.5.25 為版本號可修改，下載其他版本
三、解壓安裝使用命令：
xxxxxxxxxx
tar -axvf 下載的檔案
四、修改配置
注：此方法于3.5.25版本
打開在安裝目錄下的conf 目錄下的 neo4j.conf 檔案
xxxxxxxxxx
vim neo4j.conf
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# 修改第22行load csv時l路徑，在前面加個#，可從任意路徑讀取檔案
#dbms.directories.import=import
xxxxxxxxxx
# 修改54行，去掉改行的#，并將檔案引數修改為服務器IP，在加一句如下，可以遠程通過ip訪問neo4j資料庫
dbms.connectors.default_listen_address=0.0.0.0
# 修改71行，去掉#，設定bolt埠為7687，埠可以自定義，只要不和其他埠沖突就行
dbms.connector.bolt.listen_address=:7687
?
# 修改75行，去掉#，設定http埠為7474，埠可以自定義，只要不和其他埠沖突就行
dbms.connector.http.listen_address=:7474
?
# 修改79行，去掉#，設定https埠為7473，埠可以自定義，只要不和其他埠沖突就行
dbms.connector.https.listen_address=:7473
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# 修改245行，去掉#，允許從遠程url來load csv
dbms.security.allow_csv_import_from_file_urls=true
x
Vim使用：vim進入為命令模式，按i進入編輯模式，按ESC退回到命令模式，命令模式輸入 :wq 保存退出 :q退出 :q! 強制操作
五、開放埠
開放防火墻相對應的埠
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firewall-cmd --zone=public --permanent --add-port=7474/tcp
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firewall-cmd --reload
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firewall-cmd --list-ports（查看以開放埠）
其他兩個埠使用同樣的方式打開
六、啟動與登錄
啟動：進入安裝目錄下bin路徑
后臺啟動：
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./neo4j start
前臺啟動：
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./neo4j console
查看狀態：
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./neo4j status
停止：
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./neo4j stop
重啟：
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./neo4j restart
網址：http://192.168.3.148:7474/browser/ 賬號neo4j，密碼123456（密碼默認為neo4j 首次登錄成功會提示修改密碼）
七、資料庫資料遷移
匯出：
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./neo4j-admin dump --database=graph.db --to=/root/download/graph.db.dump
等號后為保存位置
匯入：
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neo4j-admin load --from=/root/download/graph.db.dump --database=graph.db --force
等號后為檔案位置
注意資料庫之間的版本版本不同不能互通資料
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