<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[tb_520的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/tb_520</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; tb_520]]></copyright><item><title><![CDATA[win下mysql解压版安装配置]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/83987012</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/83987012</guid><author>tb_520</author><pubDate>Sat, 10 Apr 2021 15:31:56 +0800</pubDate><description><![CDATA[打开网站去下载MySQL（MySQL下载地址）

这个网站链接进去是默认的最新版本的MySQL，根据需要下载对应得版本点击下面图上的链接进行下载。



根据电脑版本进行下载，一般选择上面两个就行



接下来，点击Download，选择No thanks, just start my download就会直接下载安装包。
1、选择合适的目录，解压mysql-5.7.24-win64.zip,

...]]></description><category></category></item><item><title><![CDATA[SpringBoot pagehelper 分页不生效,总页数总是返回第一页数据解决方案]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/115577595</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/115577595</guid><author>tb_520</author><pubDate>Sat, 10 Apr 2021 15:30:44 +0800</pubDate><description><![CDATA[application文件配置问题


# PageHelper分页插件
pagehelper:
  helperDialect: sqlserver
  reasonable: false  #开启优化，如果开启优化，在分页页码结果没有数据的时候,会查询最后一页数据
  supportMethodsArguments: true #是否支持接口参数来传递分页参数，默认false
  params: count=countSql

主要是reasonable设置为了true
...]]></description><category></category></item><item><title><![CDATA[vue图片左侧停留悬浮单击查看原图]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/115555178</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/115555178</guid><author>tb_520</author><pubDate>Fri, 09 Apr 2021 17:33:15 +0800</pubDate><description><![CDATA[import ElImageViewer from "element-ui/packages/image/src/image-viewer";
export default {
  components:{ElImageViewer},
 data() {
    return {    
      showViewer:false     
  },
 methods: {
  imageShow(url) {
      this.showViewer = true
      this.imgLi.]]></description><category></category></item><item><title><![CDATA[ssl证书免费申请部署]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/103023635</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/103023635</guid><author>tb_520</author><pubDate>Tue, 12 Nov 2019 10:28:11 +0800</pubDate><description><![CDATA[1.点击进入页面地址,选择免费型

2.证书购买成功了，在证书列表点击申请，填写基本资料信息，服务器在阿里云可以直接按下面操作。非阿里服务器域名验证方式和crs生成度需要选择手动





3.证书申请成功之后点击下载，根据自己服务选择相应的下载文件，不懂可以看阿里的帮助文档




...]]></description><category></category></item><item><title><![CDATA[Couldn't connect to host, port: smtp.alibaba.com, 25错误解决办法]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/94332732</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/94332732</guid><author>tb_520</author><pubDate>Sun, 30 Jun 2019 16:29:59 +0800</pubDate><description><![CDATA[com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.alibaba.com, 25; timeout -1;
 nested exception is:
 java.net.ConnectException: Connection timed out (Connection timed o...]]></description><category></category></item><item><title><![CDATA[spring 事务]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/93860409</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/93860409</guid><author>tb_520</author><pubDate>Thu, 27 Jun 2019 14:43:51 +0800</pubDate><description><![CDATA[事务属性

      事务属性有五个方面：传播行为，隔离级别，超时时间，回滚规则，是否只读。

事务注解方式   


     @Transactional  
     1.标记类时，类里面所有方法的都进行事务处理，
     2.标记接口,只有在接口代理才会生效，
     3.必须配置public上，其它虽然不会报错但不会生效

传播行为




    @Tr...]]></description><category></category></item><item><title><![CDATA[linux maven安装]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/92582721</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/92582721</guid><author>tb_520</author><pubDate>Mon, 17 Jun 2019 12:03:25 +0800</pubDate><description><![CDATA[1.选择一个目录创建maven存放文件夹


mkdir maven

2.下载mven包，mvaen版本访问地址https://mirrors.cnnic.cn/apache/maven/maven-3


wget https://mirrors.cnnic.cn/apache/maven/maven-3/3.6.1/binaries/apache-maven-3.6.1-bin.tar.g...]]></description><category></category></item><item><title><![CDATA[shell 命令]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/92098890</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/92098890</guid><author>tb_520</author><pubDate>Sat, 15 Jun 2019 16:23:44 +0800</pubDate><description><![CDATA[#!         是一个约定的标记，它告诉系统这个脚本需要什么解释器来执行。

echo         窗口输出文本-e          开启转义\c          不换行\n   ...]]></description><category></category></item><item><title><![CDATA[java scoket使用]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/91970219</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/91970219</guid><author>tb_520</author><pubDate>Fri, 14 Jun 2019 14:18:56 +0800</pubDate><description><![CDATA[1.引入maven包


&lt;dependency&gt;
            &lt;groupId&gt;org.springframework&lt;/groupId&gt;
            &lt;artifactId&gt;spring-web&lt;/artifactId&gt;
            &lt;version&gt;${spring.version}&...]]></description><category></category></item><item><title><![CDATA[git 生成ssh密钥]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/91869747</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/91869747</guid><author>tb_520</author><pubDate>Thu, 13 Jun 2019 16:06:09 +0800</pubDate><description><![CDATA[查看是否拥有密钥


cd ~/.ssh
ls

文件内容包含id_dsa或id_rsa命名的文件，其中一个带有.pub扩展名。.pub文件是你的公钥，另一个则是私钥。 如果没有或者根本没有.ssh目录，需要重新生成

设置用户名和邮箱



git config --global user.name "qq.com"

git config --global user.ema...]]></description><category></category></item><item><title><![CDATA[linux git安装]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/91517621</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/91517621</guid><author>tb_520</author><pubDate>Wed, 12 Jun 2019 14:33:01 +0800</pubDate><description><![CDATA[查看最新版git：访问https://www.kernel.org/pub/software/scm/git/

下载最新git: wget https://Github.com/Git/Git/archive/v2.19.2.tar.gz

解压：tar -zxvf v2.19.2.tar.gz

安装：make prefix=/usr/local/git all

    mak...]]></description><category></category></item><item><title><![CDATA[poi导出Excel]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/90377017</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/90377017</guid><author>tb_520</author><pubDate>Mon, 20 May 2019 16:24:30 +0800</pubDate><description><![CDATA[需要引入的maven


   &lt;dependency&gt;
            &lt;groupId&gt;org.apache.poi&lt;/groupId&gt;
            &lt;artifactId&gt;poi&lt;/artifactId&gt;
            &lt;version&gt;3.17&lt;/version&gt;
     ...]]></description><category></category></item><item><title><![CDATA[H5 Notification桌面推送消息]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/88637880</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/88637880</guid><author>tb_520</author><pubDate>Mon, 18 Mar 2019 14:33:12 +0800</pubDate><description><![CDATA[//      websocket连接
var websocket = null;
//判断window当前浏览器是否支持WebSocket
if ('WebSocket' in window) {
    websocket = new WebSocket(&quot;服务器地址&quot;);
}
else {
    alert('当前浏览器 Not support websocket')
}

//连接发生...]]></description><category></category></item><item><title><![CDATA[图片工具类]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/80865225</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/80865225</guid><author>tb_520</author><pubDate>Mon, 10 Dec 2018 14:55:40 +0800</pubDate><description><![CDATA[Thumbnailator 

maven导包


 &amp;lt;!-- 图片缩略图 --&amp;gt;
            &amp;lt;dependency&amp;gt;
                &amp;lt;groupId&amp;gt;net.coobird&amp;lt;/groupId&amp;gt;
                &amp;lt;artifactId&amp;gt;thumbnailator&amp;lt;/artifactId...]]></description><category></category></item><item><title><![CDATA[maven 直接引入仓库]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/84939762</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/84939762</guid><author>tb_520</author><pubDate>Mon, 10 Dec 2018 14:42:12 +0800</pubDate><description><![CDATA[1.引入本地仓库，注意file值不要忘记加了



2.引入外网或局域网仓库



 

 

 ]]></description><category></category></item><item><title><![CDATA[rabbitMQ下载安装配置]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/84251678</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/84251678</guid><author>tb_520</author><pubDate>Mon, 19 Nov 2018 17:27:33 +0800</pubDate><description><![CDATA[第一步

下载软件，因为rabbitmq是用Erlang语言写的，所以需要安装Erlang。 

Erlang下载的地址为：http://www.erlang.org/downloads 

rabbitmq下载地址为：http://www.rabbitmq.com

安装过程都是下一步

第二步

Erlang下载后直接运行.exe文件一直下一步一步的执行，安装完成之后配置ERLANG_HOME...]]></description><category></category></item><item><title><![CDATA[mysql升级为5.7遇到的错误]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/83899285</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/83899285</guid><author>tb_520</author><pubDate>Fri, 09 Nov 2018 17:26:56 +0800</pubDate><description><![CDATA[5.7默认加了好多安全方面的验证，遇到的错误有


1.ORDER BY clause is not in SELECT list, references column '' which is not in SELECT list; this is incompatible with DISTINCT  3065
2.group by 是总是出现1055
3. err 1067

比较旧版本和新版...]]></description><category></category></item><item><title><![CDATA[二维码生成解析]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/81169639</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/81169639</guid><author>tb_520</author><pubDate>Mon, 23 Jul 2018 16:15:13 +0800</pubDate><description><![CDATA[
package com.main.util;

import com.google.zxing.*;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBin...]]></description><category></category></item><item><title><![CDATA[web获取ip地址]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/80679372</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/80679372</guid><author>tb_520</author><pubDate>Wed, 13 Jun 2018 15:08:27 +0800</pubDate><description><![CDATA[/**
     * 获取请求主机IP地址,如果通过代理进来，则透过防火墙获取真实IP地址;
     *
     * @param request
     * @return 真实ip地址
     */
    public final static String getIpAddress(HttpServletRequest request) {
        String ip=re...]]></description><category></category></item><item><title><![CDATA[MD5加密]]></title><link>https://blog.youkuaiyun.com/tb_520/article/details/80449446</link><guid>https://blog.youkuaiyun.com/tb_520/article/details/80449446</guid><author>tb_520</author><pubDate>Fri, 25 May 2018 11:34:57 +0800</pubDate><description><![CDATA[16位加密public static String md16(String str)
    {
        String result = &quot;&quot;;
        if (null == str || str.trim().length() &amp;lt; 0)
        {
            return result;
        }

        try
        ...]]></description><category></category></item></channel></rss>