<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[ningxue128的博客]]></title><description><![CDATA[欢迎关顾我的博客！]]></description><link>https://blog.youkuaiyun.com/ningxue128</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; ningxue128]]></copyright><item><title><![CDATA[neo4j 查两个节点最短路径的cypher语句]]></title><link>https://blog.youkuaiyun.com/ningxue128/article/details/106096671</link><guid>https://blog.youkuaiyun.com/ningxue128/article/details/106096671</guid><author>ningxue128</author><pubDate>Wed, 13 May 2020 13:54:32 +0800</pubDate><description><![CDATA[match (p1:Person{name："姓名1"}), (p2:Person{name："姓名10"}),p=shortestpath((p1)-[*..10]-(p2))

return p

求姓名1节点与姓名10节点十度关系以内的最短路径



match (p1:Person{name："姓名1"}), (p2:Person{name："姓名10"}),p=allshortestpaths((p1)-[*..10]-(p2))

return p



求姓名1节点与姓名10节点十度关系以..]]></description><category></category></item><item><title><![CDATA[scala读取配置文件]]></title><link>https://blog.youkuaiyun.com/ningxue128/article/details/105860597</link><guid>https://blog.youkuaiyun.com/ningxue128/article/details/105860597</guid><author>ningxue128</author><pubDate>Thu, 30 Apr 2020 14:11:04 +0800</pubDate><description><![CDATA[application.conf中加入以下格式：


codes="A,B,C,D,E"

使用：


val config = ConfigFactory.load()
val initMap = config.getString("codes").split(",").map(s=&gt;(s,0.00)).toMap

pom中引入：


&lt;dependency&gt;
    &lt...]]></description><category></category></item><item><title><![CDATA[spark，rdd字段太多，无法写入文件的问题]]></title><link>https://blog.youkuaiyun.com/ningxue128/article/details/105858225</link><guid>https://blog.youkuaiyun.com/ningxue128/article/details/105858225</guid><author>ningxue128</author><pubDate>Thu, 30 Apr 2020 11:40:34 +0800</pubDate><description><![CDATA[spark将rdd写入文件，由于字段太多，无法写入

解决办法，将rdd中的字段转成对象，再输出


case class RefuceCodeResult(
                             ID:String,
                             TOTAL:Int,
                             CS_D1:Doubl...]]></description><category></category></item><item><title><![CDATA[scala case class类]]></title><link>https://blog.youkuaiyun.com/ningxue128/article/details/105857528</link><guid>https://blog.youkuaiyun.com/ningxue128/article/details/105857528</guid><author>ningxue128</author><pubDate>Thu, 30 Apr 2020 11:21:06 +0800</pubDate><description><![CDATA[scala case class类

1、定义


case class Entity(global_id: Long, label: String)

2、使用


val person_id_rdd = person_id_df.map(s =&gt; (s.get(0), s.get(4)))
.map(s =&gt; Entity(java.lang.Long.parseLong(s._1...]]></description><category></category></item></channel></rss>