<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[VISION_SONG的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/VISION_SONG</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; VISION_SONG]]></copyright><item><title><![CDATA[milvus同步collection python脚本]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/148402498</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/148402498</guid><author>VISION_SONG</author><pubDate>Tue, 03 Jun 2025 15:24:52 +0800</pubDate><description><![CDATA[milvus 指定COLLECTION_NAME ，从SOURCE_MILVUS同步collection schema和数据到SINK_MILVUS python脚本，试用batch查询，仅适用于小数据量。]]></description><category></category></item><item><title><![CDATA[ES8 向量搜索(knn-search)java-api 实践]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/131283785</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/131283785</guid><author>VISION_SONG</author><pubDate>Mon, 19 Jun 2023 19:15:24 +0800</pubDate><description><![CDATA[es8 向量搜索, java-api 实践]]></description><category></category></item><item><title><![CDATA[腾讯云轻量服务器放开端口]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/129062603</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/129062603</guid><author>VISION_SONG</author><pubDate>Thu, 16 Feb 2023 15:10:29 +0800</pubDate><description><![CDATA[执行这个命令查看防火墙内开放的端口，果然之前配置的3306端口没有生效。第一步在腾讯云面板配置端口开发规则。第二步登录服务器防火墙添加端口规则。就开放成功可以正常访问mysql了。]]></description><category></category></item><item><title><![CDATA[javacv音视频截图,音频抽取汇总]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/128728570</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/128728570</guid><author>VISION_SONG</author><pubDate>Wed, 18 Jan 2023 17:33:59 +0800</pubDate><description><![CDATA[java 使用 javacv 视频截帧, 跳到指定帧截图, 从视频中抽取音频, 音频分割为多段。]]></description><category></category></item><item><title><![CDATA[EXCEL公式]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/127136825</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/127136825</guid><author>VISION_SONG</author><pubDate>Sat, 01 Oct 2022 20:02:28 +0800</pubDate><description><![CDATA[【代码】EXCEL公式。]]></description><category></category></item><item><title><![CDATA[jodd.cache.LRUCache: 小巧的本地缓存, 及其并发bug]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/123332007</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/123332007</guid><author>VISION_SONG</author><pubDate>Mon, 07 Mar 2022 16:17:09 +0800</pubDate><description><![CDATA[jodd.cache.LRUCache: 小巧的本地缓存, 及其并发bug]]></description><category></category></item><item><title><![CDATA[[APISIX] CentOS7安装Apache APISIX及apisix-dashboard]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/122836231</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/122836231</guid><author>VISION_SONG</author><pubDate>Wed, 09 Feb 2022 11:42:34 +0800</pubDate><description><![CDATA[Apache APISIX 2.12 及 APISIX Dashboard在 centos7 安装
APISIX 是一个高性能、可扩展的微服务API网关，基于 nginx（openresty）和 Lua 实现功能，借鉴了Kong的思路，将Kong底层的关系型数据库（Postgres）替换成了NoSQL型的 etcd，这使得 APISIX 相较于 Kong 在性能上有了很大提升，在启用各类插件的情况下，Apache APISIX 的性能据说是 Kong 的 10 倍，极具吸引力。]]></description><category></category></item><item><title><![CDATA[[工具类]AOP打印入参出参和响应时间]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/121627005</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/121627005</guid><author>VISION_SONG</author><pubDate>Tue, 30 Nov 2021 10:41:50 +0800</pubDate><description><![CDATA[AOP around打印入参出参和响应时间
用一个around代替before和after去打印入参出参,并且记录响应时间.

]]></description><category></category></item><item><title><![CDATA[[工具类]根据List向量求相似度； 分值归一化(sigmoid以0.5为阈值将分值映射到0~1)]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/121574320</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/121574320</guid><author>VISION_SONG</author><pubDate>Sat, 27 Nov 2021 11:17:43 +0800</pubDate><description><![CDATA[[工具类]根据List向量求相似度; 分值归一化(sigmoid以0.5为阈值将分值映射到0~1)]]></description><category></category></item><item><title><![CDATA[[工具类]将list中元素,两两配对为Pair]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/89390873</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/89390873</guid><author>VISION_SONG</author><pubDate>Sat, 27 Nov 2021 11:09:08 +0800</pubDate><description><![CDATA[[工具类]将list中元素,两两配对为Pair
]]></description><category></category></item><item><title><![CDATA[Spark Streaming]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/89412685</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/89412685</guid><author>VISION_SONG</author><pubDate>Sat, 20 Apr 2019 09:11:51 +0800</pubDate><description><![CDATA[1.SparkStreaming简介

SparkStreaming是流式处理框架，是Spark API的扩展，支持可扩展、高吞吐量、容错的准实时数据流处理，实时数据的来源可以是：Kafka, Flume, Twitter, ZeroMQ或者TCP sockets，并且可以使用高级功能的复杂算子来处理流数据。例如：map,reduce,join,window 。最终，处理后的数据可以存放在文件系统...]]></description><category></category></item><item><title><![CDATA[SparkSql]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/89385678</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/89385678</guid><author>VISION_SONG</author><pubDate>Fri, 19 Apr 2019 08:33:13 +0800</pubDate><description><![CDATA[1. Spark

基于Spark计算框架之上且兼容Hive语法的SQL执行引擎
	底层的计算采用了Spark，性能比MapReduce的Hive普遍快2倍以上
	Shark是完全兼容Hive的语法，表结构以及UDF函数等
	Shark底层依赖于Hive的解析器，查询优化器 -- 对Hive依赖太强,难以长远发展
2. SparkSql

2.2 SparkSQL介绍

  SparkS...]]></description><category></category></item><item><title><![CDATA[Spring boot多模块web项目搭建]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/88357626</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/88357626</guid><author>VISION_SONG</author><pubDate>Fri, 08 Mar 2019 23:39:37 +0800</pubDate><description><![CDATA[环境:

jdk1.8

mysql5.7

mybatis

maven3

idea

开始Spring boot

官网地址:https://start.spring.io/

选择自己项目的group/artifact后, 点击生成项目下载zip包



在自己的workspace新建project文件夹,将zip包解压到project文件夹内, 用idea打开project项目



...]]></description><category></category></item><item><title><![CDATA[VMware上克隆centos并配置节点间免密登录]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/88322859</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/88322859</guid><author>VISION_SONG</author><pubDate>Thu, 07 Mar 2019 23:18:29 +0800</pubDate><description><![CDATA[复制虚拟机

复制VMware中安装配置好的centos node01 为node02和03





修改虚拟机配置

修改ip配置

vi /etc/sysconfig/network-scripts/ifcfg-eth0

配置规则如下:


DEVICE=eth0 #网卡设备名,请勿修改名字

TYPE=Ethernet #网络类型，以太网

BOOTPROTO=static #启用静态...]]></description><category></category></item><item><title><![CDATA[linux(centos)下安装nginx及简单使用(负载均衡,代理静态页面)]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/88320083</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/88320083</guid><author>VISION_SONG</author><pubDate>Thu, 07 Mar 2019 21:50:45 +0800</pubDate><description><![CDATA[下载地址:http://nginx.org/en/download.



Mainline version：Mainline 是 Nginx 目前主力在做的版本，可以说是开发版
Stable version：最新稳定版，生产环境上建议使用的版本
Legacy versions：遗留的老版本的稳定版

这里我选择了1.14.2稳定版

下载完成后上传到linux

安装相关依赖环境yum -y ...]]></description><category></category></item><item><title><![CDATA[linux(centos)下安装mysql5.7]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/88317558</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/88317558</guid><author>VISION_SONG</author><pubDate>Thu, 07 Mar 2019 20:29:34 +0800</pubDate><description><![CDATA[官网地址https://dev.mysql.com/downloads/mysql

这里我选择的5.7版本







下载完成后上传到linux服务器

或者


wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.27-linux-glibc2.12-x86_64.tar



解压  tar -zxvf mys...]]></description><category></category></item><item><title><![CDATA[centos下搭建ngrok服务器 内网穿透]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/86063789</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/86063789</guid><author>VISION_SONG</author><pubDate>Tue, 05 Mar 2019 19:34:44 +0800</pubDate><description><![CDATA[最近经常需要做一些需要回调的接口, 本地服务不能收到回调,把服务发布到服务器又太麻烦了.

网上有些免费的ngrok服务用,比如Sunny-Ngrok等, 但有时会掉线,就按照→大佬的博客←搭建了一个, 亲测贼好用.

首先你得有

一个备案的域名, 一个公网服务器, 之前一百多块买的腾讯一核两G服务器就派上用场了

ngrok 简介及作用

ngrok是一款用 go 语言开发的开源软件,它是...]]></description><category></category></item><item><title><![CDATA[linux常用命令总结]]></title><link>https://blog.youkuaiyun.com/VISION_SONG/article/details/88198058</link><guid>https://blog.youkuaiyun.com/VISION_SONG/article/details/88198058</guid><author>VISION_SONG</author><pubDate>Tue, 05 Mar 2019 19:32:40 +0800</pubDate><description><![CDATA[文件夹/文件

mkdir -p dir/dirr/dirrr 创建内层文件夹

touch创建文件

rm 文件 删除文件

rm -rf 递归删除文件夹

上传下载

rz上传 rz-e

sz下载

后台运行jar包

nohup java -jar XXX.jar &amp;amp;

指定日志运行:

nohup java -jar smsserviceweb-0.0.1.jar &amp;gt; l...]]></description><category></category></item></channel></rss>