<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[L-75的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/llwwlql</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; llwwlql]]></copyright><item><title><![CDATA[NPM报错 Error: EPERM: operation not permitted, unlink......解决办法和清除缓存。]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/107815433</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/107815433</guid><author>llwwlql</author><pubDate>Wed, 05 Aug 2020 14:58:28 +0800</pubDate><description><![CDATA[由于国内外环境因素，npm install安装依赖的时候经常会出现各种问题，特别是“Error: EPERM: operation not permitted, unlink…”这个错误。

这个错误因为报错信息的误导性，导致很多网上提出的解决办法都是什么设置权限，以管理员身份进入等乱七八糟的。
其实这个错误出现的原因就是网络不稳定，导致npm包下载不完整或者出错导致的。什么，你家里100M光纤网速飞起？但服务器是国外的，该慢的时候还是得慢。
而一次出错之后，一般人都会再次npm install ，而npm]]></description><category></category></item><item><title><![CDATA[json在继承关系当中的反序列化]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/104879726</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/104879726</guid><author>llwwlql</author><pubDate>Sun, 15 Mar 2020 15:40:34 +0800</pubDate><description><![CDATA[问题描述
当收到子类的json字符串的时候，如果用父类来进行反序列化，那就会出现数据丢失的情况。具体如下

Family包含有Child，Child有两个子类，一个是Son，另一个是Daughter。
当收到的Json字符串为
{“child”:{“childName”:”张三”,”girlFirendName”:”小红”}}时，此时用Family去反序列化，”girlFirendName”:”小...]]></description><category></category></item><item><title><![CDATA[[Elasticsearch] 向已存在的索引中加入自己定义filter/analyzer]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/103010722</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/103010722</guid><author>llwwlql</author><pubDate>Mon, 11 Nov 2019 15:35:28 +0800</pubDate><description><![CDATA[问题描写叙述
随着应用的不断升级，索引中的类型也会越来越多，新添加的类型中势必会使用到一些自己定义的Analyzer。可是通过_settings端点的更新API不能直接在已经存在的索引上使用。
在sense中进行更新时会抛出异常：
PUT /symbol
{
  "settings": {
    "analysis": {
      "filter": {
        "edgengram...]]></description><category></category></item><item><title><![CDATA[《机器学习实战》源代码和数据集下载]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/99817633</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/99817633</guid><author>llwwlql</author><pubDate>Tue, 20 Aug 2019 09:13:15 +0800</pubDate><description><![CDATA[永久有效：
链接: https://pan.baidu.com/s/1nlAPt941Dw7N_v5ZaX42dQ
提取码: 43s8
————————————————
原文链接：https://blog.youkuaiyun.com/qq_40627333/article/details/82823348

...]]></description><category></category></item><item><title><![CDATA[python读取hive数据最佳实践]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/93208385</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/93208385</guid><author>llwwlql</author><pubDate>Fri, 21 Jun 2019 17:19:10 +0800</pubDate><description><![CDATA[使用pyhive库来连接hive server2提供的对外接口，使用sql语句来对数据进行查询，并处理返回结果。
安装依赖：
yum install python-pip gcc gcc-c++ python-virtualenv cyrus-sasl-devel
pip install pyhive
pip install thift
pip install sasl
pip install ...]]></description><category></category></item><item><title><![CDATA[IDEA 插件无法下载的3种解决方案]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/88424277</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/88424277</guid><author>llwwlql</author><pubDate>Tue, 12 Mar 2019 17:00:21 +0800</pubDate><description><![CDATA[原文：https://blog.youkuaiyun.com/qq_35119422/article/details/81635709
1.配置代理

2.去idea官网手动下载，然后导包进来
但是对于mac这个操作并没有什么用

导入下载后的插件，点了open之后idea没有任何反应
可以看到我还通过终端手动给解压过的文件夹又做了压缩处理，然而并没有起到任何效果
解决办法：

找到应用程序，进到idea包中...]]></description><category></category></item><item><title><![CDATA[but was actually of type 'com.sun.proxy.$Proxy128' bean注入的问题]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/82499101</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/82499101</guid><author>llwwlql</author><pubDate>Fri, 07 Sep 2018 16:43:44 +0800</pubDate><description><![CDATA[在做测试的时候 
在注入bean的时候，报错



    @Autowired
    private AccountDebitServiceImpl accountDebitService;



org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'se...]]></description><category></category></item><item><title><![CDATA[java.lang.VerifyError: Expecting a stackmap frame at branch target 25]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/82378314</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/82378314</guid><author>llwwlql</author><pubDate>Tue, 04 Sep 2018 09:36:32 +0800</pubDate><description><![CDATA[首先，看下jdk中对于verifyError的解释： 



Thrown when the &quot;verifier&quot; detects that a class file, though well formed, contains some sort of internal inconsistency or security problem. 

翻译：当“校验器”检测到一个类文件虽然格式正确，但包含...]]></description><category></category></item><item><title><![CDATA[解决redis连接错误：MISCONF Redis is configured to save RDB snapshots, but it is currently not able to...]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/81096133</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/81096133</guid><author>llwwlql</author><pubDate>Wed, 18 Jul 2018 12:32:43 +0800</pubDate><description><![CDATA[今天重启服务器在连接redis数据库时突然报错：MISCONF Redis is configured to save RDB snapshots, but it is currently not able to persist on disk. Commands that may modify the data set are disabled, because this instance is...]]></description><category></category></item><item><title><![CDATA[Intellij IDEA基于Springboot的远程调试]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/80748598</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/80748598</guid><author>llwwlql</author><pubDate>Wed, 20 Jun 2018 17:00:30 +0800</pubDate><description><![CDATA[简介

本篇博客介绍一下在Intellij IDEA下对Springboot类型的项目的远程调试功能。所谓的远程调试就是服务端程序运行在一台远程服务器上，我们可以在本地服务端的代码（前提是本地的代码必须和远程服务器运行的代码一致）中设置断点，每当有请求到远程服务器时时能够在本地知道远程服务端的此时的内部状态。



方法

首先，打开Edit configurations，点击+号，创建一个Rem...]]></description><category></category></item><item><title><![CDATA[centos7下yum安装mysql]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/80008223</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/80008223</guid><author>llwwlql</author><pubDate>Thu, 19 Apr 2018 17:32:22 +0800</pubDate><description><![CDATA[一般在linux下安装mysql 的步骤如下:

安装前看是否安装过mysql，

yum list installed mysql*

如果有就用yum remove卸载mysql

查看yum库下是否有mysql-server



yum list | grep mysql 或 yum -y list mysql*

如果没有（一般在centos7下没有）



wget http://re...]]></description><category></category></item><item><title><![CDATA[Windows下Git多账号配置，同一电脑多个ssh-key的管理]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/79787761</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/79787761</guid><author>llwwlql</author><pubDate>Mon, 02 Apr 2018 13:03:19 +0800</pubDate><description><![CDATA[　　这一篇文章是对上一篇文章《Git-TortoiseGit完整配置流程》的拓展，所以需要对上一篇文章有所了解，当然直接往下看也可以，其中也有一些提到一些基础的操作。

　　本文以配置github.com账号和git.oschina.net账号来逐步演示在Windows环境下配置Git多账号支持即在同一个电脑上管理多个ssh-key，对git多一分了解。

　　备注：这篇文章所有执行命令的地方都是...]]></description><category></category></item><item><title><![CDATA[Spring boot 项目使用mvn设置配置文件动态参数]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/79291457</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/79291457</guid><author>llwwlql</author><pubDate>Thu, 08 Feb 2018 16:48:47 +0800</pubDate><description><![CDATA[在pom.xml中配置profiles，对不同环境配置不同变量的值

    &amp;lt;profiles&amp;gt;
        &amp;lt;profile&amp;gt;
            &amp;lt;id&amp;gt;develop&amp;lt;/id&amp;gt;
            &amp;lt;activation&amp;gt;
                &amp;lt;activeByDefault&amp;gt;true&amp;lt;/...]]></description><category></category></item><item><title><![CDATA[POI设置EXCEL单元格格式为文本、小数、百分比、货币、日期、科学计数法和中文大写]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/78968506</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/78968506</guid><author>llwwlql</author><pubDate>Thu, 04 Jan 2018 10:48:40 +0800</pubDate><description><![CDATA[第一种：日期格式
            cell.setCellValue(new Date(2008,5,5));
            //set date format
            HSSFCellStyle cellStyle = demoWorkBook.createCellStyle();
            HSSFDataFormat format= demoW]]></description><category></category></item><item><title><![CDATA[git ssh连接（填坑）]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/78643218</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/78643218</guid><author>llwwlql</author><pubDate>Mon, 27 Nov 2017 11:26:10 +0800</pubDate><description><![CDATA[ssh-keygen -t rsa -C ”yourEmail@example.com”一路回车ssh -T git@gitlab.com (@后面是填写的域名，如果是github的就填写github，如果是其他的，例如gitlab的，就填写公司gitlab的域名)]]></description><category></category></item><item><title><![CDATA[Elasticsearch-sql 5.4.0插件的安装与常见错误]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/78456273</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/78456273</guid><author>llwwlql</author><pubDate>Mon, 06 Nov 2017 11:59:55 +0800</pubDate><description><![CDATA[插件地址https://github.com/NLPchina/elasticsearch-sql安装步骤下载elasticsearch-sql插件
./bin/elasticsearch-plugin install https://github.com/NLPchina/elasticsearch-sql/releases/download/5.4.0.0/elasticsearch-sql-5]]></description><category></category></item><item><title><![CDATA[ElasticSearch 5.4 客户端访问常见问题]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/78343796</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/78343796</guid><author>llwwlql</author><pubDate>Wed, 25 Oct 2017 17:14:08 +0800</pubDate><description><![CDATA[0 概述本文主要阐述 ElasticSearch 5.4 客户端模式进行开发的时候出现的问题~依赖 maven pom        <!-- ES -->
        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>]]></description><category></category></item><item><title><![CDATA[Log4j2 类名与行名不显示问题]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/78303813</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/78303813</guid><author>llwwlql</author><pubDate>Sat, 21 Oct 2017 15:20:12 +0800</pubDate><description><![CDATA[Log4j2 类名与行名不显示问题异步日志，打印到文件中，显示的类名和行数都是”？”：        &lt;AsyncLogger name=&quot;com.kingsoft.adx.database.dao&quot; level=&quot;debug&quot;&gt;
            &lt;appender-ref ref=&quot;MyBatis&quot;/&gt;
        &lt;/AsyncLogger&gt;修改成同步日志，就可以显示出类名与行数了：]]></description><category></category></item><item><title><![CDATA[Intellij IDEA中使用MyBatis-generator 自动生成MyBatis代码]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/78190549</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/78190549</guid><author>llwwlql</author><pubDate>Tue, 10 Oct 2017 11:13:02 +0800</pubDate><description><![CDATA[Intellij IDEA中使用MyBatis-generator 自动生成MyBatis代码
MyBatis Generator是一个非常方便的代码生成工具，可以根据数据库中表结构自动生成CRUD代码，可以满足大部分需求。MyBatis Generator (MBG) 是一个Mybatis的代码生成器 ，可以根据数据库中表结构自动生成简单的CRUD（插入，查询，更新，删除）操作。
 但联合查询和存]]></description><category></category></item><item><title><![CDATA[ElasticSearch 5学习——安装Elasticsearch、Kibana和X-Pack]]></title><link>https://blog.youkuaiyun.com/llwwlql/article/details/77750234</link><guid>https://blog.youkuaiyun.com/llwwlql/article/details/77750234</guid><author>llwwlql</author><pubDate>Thu, 31 Aug 2017 17:31:14 +0800</pubDate><description><![CDATA[安装准备：

安装Elasticsearch唯一的要求是安装官方新版的Java，包括对应的Jdk。

安装Elasticsearch

首先到官网下载最新版本的Elasticsearch压缩包。

可以使用命令，注意将最新的可用的下载链接填入：
curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elas]]></description><category></category></item></channel></rss>