using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Web;

using?Neo4j.Driver.V1;
using?Newtonsoft.Json;

namespace?Web.Utility
{
????public?class?Neo4jlxbHelper
????{
????????private?readonly?IDriver?Driver;

????????public?Neo4jlxbHelper（）
????????{
????????????string?uri?=?“bolt://localhost:7687“;
????????????//string?uri?=?“bolt://192.168.25.119:7687“;
????????????string?user?=?“l(fā)xb“;
????????????string?password?=?“123456“;
????????????Driver?=?GraphDatabase.Driver（uri?AuthTokens.Basic（user?password））;
????????}

????????#region?添加節(jié)點(diǎn)
????????/*在Neo4j的事務(wù)中，讀寫操作都必須處于事務(wù)的上下文中。在Session對象中，當(dāng)事務(wù)以自動提交模式執(zhí)行（通過session.Run（）?函數(shù)調(diào)用）時，
????????事務(wù)只包含一個Cypher語句，但是，這種模式有一個缺點(diǎn)，當(dāng)Cypher語句執(zhí)行失敗時，事務(wù)不能重新執(zhí)行（Replay）。Neo4j推薦使用事務(wù)函數(shù)模式，
????????在Session中調(diào)用WriteTransaction（）或?ReadTransaction（）函數(shù)，并在事務(wù)函數(shù)包含事務(wù)單元，在事務(wù)執(zhí)行失敗時，能夠在異常處理代碼中重新執(zhí)行Cypher語句。*/

????????///?

????????///?add?by?lxb?2018-09-29
????????///?使用參數(shù)創(chuàng)建節(jié)點(diǎn)?事務(wù)添加，在事務(wù)執(zhí)行失敗時，能夠在異常處理代碼中重新執(zhí)行Cypher語句
????????///?

????????///?節(jié)點(diǎn)名
????????///?節(jié)點(diǎn)的name屬性
????????///?
????????public?bool?AddNode（string?lable?string?name）
????????{
????????????try
????????????{
????????????????string?query?=?string.Format（“CREATE?（n:{0}?“?lable）?+?@“{name:?$name}）“;
????????????????using?（var?session?=?Driver.Session（））
????????????????{
????????????????????return?session.WriteTransaction（
????????????????????????tx?=>
????????????????????????{
????????????????????????????tx.Run（query?new?{?name?}）;
????????????????????????????return?true;
????????????????????????}
????????????????????）;
????????????????}
????????????}
????????????catch?（AggregateException）
????????????{
????????????????return?false;
????????????}
????????}
????????#endregion

????????#region?添加關(guān)系

????????///?

????????///?使用參數(shù)創(chuàng)建關(guān)系?通過new創(chuàng)建匿名類型，參數(shù)名是匿名類型的字段，字段名必須和Cypher語句中的參數(shù)（$para）保持一致。
????????///?

????????///?關(guān)系類型
????????///?源節(jié)點(diǎn)名稱
????????///?目標(biāo)節(jié)點(diǎn)名稱
????????///?
????????public?bool?CreateRelationshipByName（string?SourceNodeName?string?TargetNodeName?string?RelationshipType）
????????{
????????????string?query?=?string.Format（@“match?（n）（m）?where?n.name=$source?and?m.name=$target?create?（n）-[:{0}]->（m）;“?RelationshipType）;
????????????try
????????????{
????????????????using?（var?session?=?Driver.Session（））
????????????????{
????????????????????return?session.WriteTransaction（
????????????????????????tx?=>
????????????????????????{
????????????????????????????tx.Run（query?new
????????????????????????????{
????????????????????????????????source?=?SourceNodeName
????????????????????????????????target?=?TargetNodeName
????????????????????????????????type?=?RelationshipType
????????????????????????????}）;
???????????????????????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????301056??2018-05-23?14:50??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\lib\net452\Neo4j.Driver.dll

?????文件?????212626??2018-05-23?14:50??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\lib\net452\Neo4j.Driver.xml

?????文件?????300544??2018-05-23?14:50??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\lib\netstandard1.3\Neo4j.Driver.dll

?????文件?????212626??2018-05-23?14:50??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\lib\netstandard1.3\Neo4j.Driver.xml

?????文件?????268573??2018-09-27?09:27??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\Neo4j.Driver.1.6.1.nupkg

?????文件??????11652??2018-10-16?18:28??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4jlxbHelper.cs

?????目錄??????????0??2018-10-18?09:35??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\lib\net452

?????目錄??????????0??2018-10-18?09:35??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\lib\netstandard1.3

?????目錄??????????0??2018-10-18?09:35??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1\lib

?????目錄??????????0??2018-10-18?09:35??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫\Neo4j.Driver.1.6.1

?????目錄??????????0??2018-10-18?09:36??C#Neo4jDriver操Neo4j圖形數(shù)據(jù)庫

-----------?---------??----------?-----??----

??????????????1307077????????????????????11