<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[lesliehu2158的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/lesliehu2158</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; lesliehu2158]]></copyright><item><title><![CDATA[JVM(三) Java内存模型]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/127691708</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/127691708</guid><author>lesliehu2158</author><pubDate>Fri, 04 Nov 2022 16:27:40 +0800</pubDate><description><![CDATA[JVM]]></description><category></category></item><item><title><![CDATA[JVM(二) JVM内存配置Xms/Xmx/PermSize/MaxPermSize]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/127691651</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/127691651</guid><author>lesliehu2158</author><pubDate>Fri, 04 Nov 2022 16:25:21 +0800</pubDate><description><![CDATA[JVM]]></description><category></category></item><item><title><![CDATA[JVM（一）]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/127691603</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/127691603</guid><author>lesliehu2158</author><pubDate>Fri, 04 Nov 2022 16:23:55 +0800</pubDate><description><![CDATA[JVM]]></description><category></category></item><item><title><![CDATA[2021-05-20]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/117068770</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/117068770</guid><author>lesliehu2158</author><pubDate>Thu, 20 May 2021 11:27:24 +0800</pubDate><description><![CDATA[/*
Navicat Premium Data Transfer

Source Server     : 1
Source Server Type  : MySQL
Source Server Version : 50709
Source Host      : 10.0.86.51:3307
Source Schema     : scrapy

Target Server Type  : MySQL
Target Server Version : 50...]]></description><category></category></item><item><title><![CDATA[mysql 的函数 SUBSTRING_INDEX]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/110198546</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/110198546</guid><author>lesliehu2158</author><pubDate>Thu, 26 Nov 2020 17:52:00 +0800</pubDate><description><![CDATA[table表三个字段：

id, username,       age

1 张三【zhangsan】 19

2  李四【lisi】      30

3  王五【wangwu】 34





要求：批量查询出账号为：zhangsan，lisi，wangwu，zhaoliu....用户的年龄

sql如下：

SUBSTRING_INDEX(username, '【',-1)

去掉左边【， selectSUBSTRING_INDEX(usernam...]]></description><category></category></item><item><title><![CDATA[springboot整合thymeleaf]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/107313658</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/107313658</guid><author>lesliehu2158</author><pubDate>Mon, 13 Jul 2020 11:30:26 +0800</pubDate><description><![CDATA[1.pom.xml


&lt;dependency&gt;
    &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
    &lt;artifactId&gt;spring-boot-starter-thymeleaf&lt;/artifactId&gt;
&lt;/dependency&gt;

2.配置文件application.properties


#整合thymeleaf
#关闭缓存，改完页面后就能实时刷新，上生产需改为true
]]></description><category></category></item><item><title><![CDATA[IDEA配置lombok及本地项目热部署说明]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/107308004</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/107308004</guid><author>lesliehu2158</author><pubDate>Mon, 13 Jul 2020 01:07:02 +0800</pubDate><description><![CDATA[一、增加lombok

1.maven工程中：


&lt;dependency&gt;
    &lt;groupId&gt;org.projectlombok&lt;/groupId&gt;
    &lt;artifactId&gt;lombok&lt;/artifactId&gt;
    &lt;optional&gt;true&lt;/optional&gt;
&lt;/dependency&gt;

2.idea中配置

File-&gt;Settings-&gt;Plugins-&gt; 搜]]></description><category></category></item><item><title><![CDATA[线程池ExecutorService 及CountDownLatch 并发执行查询接口]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/97137103</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/97137103</guid><author>lesliehu2158</author><pubDate>Wed, 24 Jul 2019 16:33:07 +0800</pubDate><description><![CDATA[public static Map&lt;String ,List&lt;Map&lt;String, Object&gt;&gt;&gt; getMaps(List&lt;String&gt; sqlKeys) throws InterruptedException, ExecutionException{
	    if(CollectionUtils.isEmpty(sqlKeys)) {...]]></description><category></category></item><item><title><![CDATA[List-Object按Object实体类中的某个字段排序]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/97136799</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/97136799</guid><author>lesliehu2158</author><pubDate>Wed, 24 Jul 2019 16:20:47 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[批量excel插入sql-update语句]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/91455139</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/91455139</guid><author>lesliehu2158</author><pubDate>Tue, 11 Jun 2019 19:04:46 +0800</pubDate><description><![CDATA[="update t_report_menu_role set post_name =“"&amp;B50&amp;"” where role_no=“"&amp;D50&amp;"”"

step1：  =" "

step2： update table set col = “      ”，先是两个中文字符的双引号

step3： "&amp;B1&amp;" ,接下...]]></description><category></category></item><item><title><![CDATA[elasticSearch5.5.2集群安装]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/88879687</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/88879687</guid><author>lesliehu2158</author><pubDate>Thu, 28 Mar 2019 22:21:42 +0800</pubDate><description><![CDATA[把一个下载好的es当做一个主节点：

修改config下的elasticsearch.yml文件

添加如下配置到最后


##指定集群名称
cluster.name: leslie
node.name: master
node.master: true

##指定绑定ip
##端口默认还是9200
network.host: 127.0.0.1


copy两份未做过任何修改es出来，分别叫es...]]></description><category></category></item><item><title><![CDATA[Python 的dict几种遍历方式]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/88875303</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/88875303</guid><author>lesliehu2158</author><pubDate>Thu, 28 Mar 2019 18:34:18 +0800</pubDate><description><![CDATA[1、遍历key值，value值（下面写法完全等价）：
a = {'a': '1', 'b': '2', 'c': '3'}
方式一：
for key in a:
  print(key+':'+a[key])
方式二：
for key in a.keys():
  print(key+':'+a[key])
方式三：
for key,value in a.items():
   p...]]></description><category></category></item><item><title><![CDATA[elasticSearch5.5.2]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/88859741</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/88859741</guid><author>lesliehu2158</author><pubDate>Thu, 28 Mar 2019 02:08:03 +0800</pubDate><description><![CDATA[es-head的安装







下载后的包解压到同一级目录



在执行npm install之前，确保node安装了，并且版本是8.2.1的



跑起来：npm run start





head插件和es建立通信，存在跨域的问题，因为二者都是在不同的进程中。

需要修改es中的配置文件：

1.修改es的yml文件，在config目录下：

在最下面增加：

http.cors...]]></description><category></category></item><item><title><![CDATA[jQueryAjax同步异步]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/88717770</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/88717770</guid><author>lesliehu2158</author><pubDate>Thu, 21 Mar 2019 16:07:03 +0800</pubDate><description><![CDATA[jQueryAjax同步异步

 今天在项目开发过程中，要实现这么一个功能


&lt;!-- 当我点击就业的时候，触发onclick时间,check()方法里通过ajax请求返回数据，
  如果该用户已经毕业可以跳转到job.html如果没有毕业不能跳转页面同时弹框提示 --&gt;
       &lt;a href="job.html"  onclick="return check()"...]]></description><category></category></item><item><title><![CDATA[Python 爬虫找到数据了 re & XPath & requests & Pool]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/82184101</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/82184101</guid><author>lesliehu2158</author><pubDate>Wed, 29 Aug 2018 15:34:24 +0800</pubDate><description><![CDATA[Python 爬虫找到数据了 re &amp;amp; XPath &amp;amp; requests &amp;amp; Pool

2018.06.16 23:18 88浏览

 字号

是的，爬虫就是为了获取数据。在获取的数据中，会有很多的冗余信息，需要在获取的数据中提取所需要的有用信息。进而联想到数据的匹配：正则表达式。接下来重点介绍的是 Python 中的两个提取数据的两个框架 re 与 XPath。

一、...]]></description><category></category></item><item><title><![CDATA[停掉一台服务器，Nginx响应慢解决办法（转载）]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/77062863</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/77062863</guid><author>lesliehu2158</author><pubDate>Thu, 10 Aug 2017 17:05:00 +0800</pubDate><description><![CDATA[测试发现的问题及解决办法

　　1、当后端两台IIS应用服务器都正常时，访问速度非常快，查看日志，原来一个请求，是后端两台服务器同时响应的;

　 　2、为了模仿故障测试，停掉一台IIS应用服务器，这时再访问，请求打开一页面时，发现有一半响应比较快，另一半响应很慢，最后页面是可以打开，但速度 不理想，很慢，查看error日志，发现nginx还是把请求的一半发往已停掉的那台服务器，难怪会这么]]></description><category></category></item><item><title><![CDATA[java-jacob操作word，往word中动态插入各种文件]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/74910043</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/74910043</guid><author>lesliehu2158</author><pubDate>Mon, 10 Jul 2017 11:22:36 +0800</pubDate><description><![CDATA[1.录制宏：如图


录制宏-- 

 将宏的名字改为insertDocFile---确定
第二步：


插入对象---选择一个doc文件







点击确认
接着就是停止宏





第三步就是：查看宏：




点击编辑：
出来的是vba(visual basical application)的编辑页面，就是到代码一层了]]></description><category></category></item><item><title><![CDATA[测试号微信公众平台]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/43148929</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/43148929</guid><author>lesliehu2158</author><pubDate>Mon, 26 Jan 2015 09:49:02 +0800</pubDate><description><![CDATA[微信公众平台接入：
          首先进入微信公众平台的首页：点击进入开发者中心，进入开发者文档：
          
     进入之后点击新手开发接入：
接入序号填写URL和TOKEN两个字段，验证服务器的有效性

填写服务配置如图：

需要注意的是，我们这里用到了一个代理NAT123软件，该软件可以直接配置到我们本地，但它只支持80端口，用该软件首先得注册一个nat账]]></description><category></category></item><item><title><![CDATA[jquery的each()详细介绍]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/40856491</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/40856491</guid><author>lesliehu2158</author><pubDate>Thu, 06 Nov 2014 10:04:16 +0800</pubDate><description><![CDATA[下面提一下each的几种常用的用法

  


each处理一维数组


  var arr1 = [ "aaa", "bbb", "ccc" ];      
  $.each(arr1, function(i,val){      
      alert(i);   
      alert(val);
  });   


alert(i)将输出0，1，2
]]></description><category></category></item><item><title><![CDATA[java.lang.NoClassDefFoundError: org/objectweb/asm/Type]]></title><link>https://blog.youkuaiyun.com/lesliehu2158/article/details/22229149</link><guid>https://blog.youkuaiyun.com/lesliehu2158/article/details/22229149</guid><author>lesliehu2158</author><pubDate>Thu, 27 Mar 2014 00:05:43 +0800</pubDate><description><![CDATA[Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating]]></description><category></category></item></channel></rss>