<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[tavatimsa的博客]]></title><description><![CDATA[记录和分享各种疑难杂症]]></description><link>https://blog.youkuaiyun.com/tavatimsa</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; tavatimsa]]></copyright><item><title><![CDATA[多线程数据库查询]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/108619038</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/108619038</guid><author>tavatimsa</author><pubDate>Wed, 16 Sep 2020 11:41:05 +0800</pubDate><description><![CDATA[@Configuration
public class AsyncConfig {
    @Bean
    public TaskExecutor taskExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        // 设置核心线程数
        executor.setCorePoolSize(5);
        // 设置最大线程数
        executor]]></description><category></category></item><item><title><![CDATA[idea 一套代码提交到多个git上]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/108388266</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/108388266</guid><author>tavatimsa</author><pubDate>Thu, 03 Sep 2020 17:21:14 +0800</pubDate><description><![CDATA[1.点开Terminal
2.查看远程仓库，只有一个github远程仓库
git remote
origin

git remote -v
origin https://github.com/tavatimsa/test.git (fetch)
origin https://github.com/tavatimsa/test.git (push)

3.再添加一个远程仓库以gitee为例
git remote add gitee https://gitee.com/tavatimsa/test.git

4]]></description><category></category></item><item><title><![CDATA[spring cloud汇总]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/107462480</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/107462480</guid><author>tavatimsa</author><pubDate>Mon, 20 Jul 2020 14:17:07 +0800</pubDate><description><![CDATA[1.spring cloud task
定时的服务，比如每天晚上运行一次的任务，运行完就停止。
临时的服务，比如需要临时提一份数据，做个数据分析后就停止。
占用资源比较多的业务，如果不需要时就不启动节省资源。
spring cloud task就是处理这些任务，什么时候启动、关闭、抛异常。还有启动关闭hook(挂起)。

...]]></description><category></category></item><item><title><![CDATA[下载Homebrew出现的问题Failed to connect to raw.githubusercontent.com port 443: Connection refused]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/107406893</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/107406893</guid><author>tavatimsa</author><pubDate>Fri, 17 Jul 2020 14:05:52 +0800</pubDate><description><![CDATA[Failed to connect to raw.githubusercontent.com port 443: Connection refused
直接使用这个开源脚本一键解决：
https://gitee.com/cunkai/HomebrewCN
HomebrewCN
Homebrew 国内自动安装脚本
/bin/zsh -c “$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)”

...]]></description><category></category></item><item><title><![CDATA[记录所有Java用到的有用注解]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/106259635</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/106259635</guid><author>tavatimsa</author><pubDate>Thu, 21 May 2020 15:49:36 +0800</pubDate><description><![CDATA[@AllArgsConstructor @NoArgsConstructor 一般都用在model类上，代表全属性构造器和无属性构造器。
@Data 自动给model类反射添加set get 属性方法。


]]></description><category></category></item><item><title><![CDATA[使用码云管理开源项目的问题记录]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/94461135</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/94461135</guid><author>tavatimsa</author><pubDate>Tue, 02 Jul 2019 17:38:54 +0800</pubDate><description><![CDATA[使用码云管理开源项目的问题记录
git branch --set-upstream-to=origin/master master  问题
在本地仓切换到master
git checkout master
再更新项目，那么刚刚同步的文件就出来了

...]]></description><category></category></item><item><title><![CDATA[记录IDEA几个有用的插件]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/91971957</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/91971957</guid><author>tavatimsa</author><pubDate>Fri, 14 Jun 2019 14:23:48 +0800</pubDate><description><![CDATA[1.gitignore
2.lombok
3.MavenRunHelper
4.p3c
5.Statistic-3.5
6.

]]></description><category></category></item><item><title><![CDATA[tomcat 配置用户后 管理页面 403 Access Denied的解决方法]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/89955029</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/89955029</guid><author>tavatimsa</author><pubDate>Wed, 08 May 2019 15:20:42 +0800</pubDate><description><![CDATA[安装tomcat，配置好tomcat环境变量以后，访问manager app页面，出现403 Access Denied错误，解决的方法如下：
首先在conf/tomcat-users.xml文件里面，在前面添加如下代码：
&lt;role rolename="manager-gui"/&gt;
&lt;user password="123456" roles="manager-gui" user...]]></description><category></category></item><item><title><![CDATA[linux 命令总结记录]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/89948800</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/89948800</guid><author>tavatimsa</author><pubDate>Wed, 08 May 2019 11:40:19 +0800</pubDate><description><![CDATA[1. linux 日志文件的查看
cat filename 查看日志，打开整个文件，直接到最后一行。
tail -f filename 查看日志，实时查看最后一行
vi filename 编辑文件
vim filename 编辑文件
查找文件内容关键字方法：
先 执行命令&gt;：  vi      filename
然后输入&gt;:   /查找字符串 
按n查找下一个
示例：
如查找catal...]]></description><category></category></item><item><title><![CDATA[python数字操作学习笔记]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/89714085</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/89714085</guid><author>tavatimsa</author><pubDate>Tue, 30 Apr 2019 17:59:32 +0800</pubDate><description><![CDATA[1.加减乘除
+ - * /

2.次方运算
32 = 9     33=27   10**6=1000000

3.表达式运算
2+3*4=14   (2+3)*4

4.空格不影响Python计算表达式的方式

5.使用str()避免类型错误
age=23   “Happy”+age+“rd Birthday!” 会报错 Python不知道这是数值23还是字符2和3  这个时候就需要用到str...]]></description><category></category></item><item><title><![CDATA[软考需要记录的知识点]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/89556472</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/89556472</guid><author>tavatimsa</author><pubDate>Fri, 26 Apr 2019 16:43:09 +0800</pubDate><description><![CDATA[1.二进制转十进制 多进制转十进制
二进制：10100.01 = 12的四次方+12的而次方+1*2负二次方     2代表的是进制数  几次方是权值  小数点后为负数 各位为0权值。
七进制：604.01 = 67的二次方+47的0次方+1*7的负二次方
2.十进制转二进制 十进制转多进制
使用短除法


...]]></description><category></category></item><item><title><![CDATA[python字符串操作学习笔记]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/89469154</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/89469154</guid><author>tavatimsa</author><pubDate>Tue, 23 Apr 2019 11:36:06 +0800</pubDate><description><![CDATA[1.title()方法
ada lovelace   -&gt;   Ada Lovelace  每个单词首字母改为大写。
2.upper()方法
ada lovelace -&gt;  ADA LOVELACE 全部单词都改为大写。
3.lower()方法
ada LovelacE -&gt; ada lovelace 全部单词改为小写。
4.\t制表符
5.\n换行符
6.剔除字符串开头 末尾...]]></description><category></category></item><item><title><![CDATA[记录支付宝接口服务问题]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/88864431</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/88864431</guid><author>tavatimsa</author><pubDate>Thu, 28 Mar 2019 11:00:01 +0800</pubDate><description><![CDATA[1.缺少签名参数sign
一般是密钥出现错误。

]]></description><category></category></item><item><title><![CDATA[学习Flowable工作流问题汇总]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/88792548</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/88792548</guid><author>tavatimsa</author><pubDate>Mon, 25 Mar 2019 13:54:00 +0800</pubDate><description><![CDATA[1.为什么Flowable 和 SpringBoot 刚刚开始整合的时候会报错。
比如Cause: java.sql.SQLSyntaxErrorException: Table ‘mall.act_ge_property’ doesn’t exist 这些查找不到表结构。
这个时候需要在mysql datasource url 链接后面添加nullCatalogMeansCurrent=true...]]></description><category></category></item><item><title><![CDATA[Java 获取数组或者集合最大值]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/88681251</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/88681251</guid><author>tavatimsa</author><pubDate>Wed, 20 Mar 2019 10:07:25 +0800</pubDate><description><![CDATA[1.集合获得最大最小值
import java.util.Arrays;
import java.util.Collections;

public class Main {
    public static void main(String[] args) {
        List&lt;Integer&gt; list = new ArrayList&lt;&gt;();
       ...]]></description><category></category></item><item><title><![CDATA[pip3 pip 10.0.1 升级到 pip最新版本 19.0.2 版本 问题]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/87192032</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/87192032</guid><author>tavatimsa</author><pubDate>Wed, 13 Feb 2019 17:13:01 +0800</pubDate><description><![CDATA[You are using pip version 10.0.1, however version 19.0.2 is available.
You should consider upgrading via the ‘python -m pip install --upgrade pip’ command.
当用pip3 list 显示这行提示
我就按照要求输入python -m pip ins...]]></description><category></category></item><item><title><![CDATA[重新梳理学习Java基础知识]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/86762409</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/86762409</guid><author>tavatimsa</author><pubDate>Mon, 04 Feb 2019 09:43:43 +0800</pubDate><description><![CDATA[1.方法参数使用情况：

一个方法不能修改一个基本数据类型的参数(即数值型和布尔型)。
一个方法可以改变一个对象参数的状态。
一个方法不能实现让对象参数引用一个新的对象。


...]]></description><category></category></item><item><title><![CDATA[记录碰到的各种奇怪的问题]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/86643578</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/86643578</guid><author>tavatimsa</author><pubDate>Fri, 25 Jan 2019 12:04:46 +0800</pubDate><description><![CDATA[1.在使用GSON传递JSON复杂数据,并且用到Retrofit2  MVP模式框架的时候，里面的JSON中的：会转成=号。这个时候不要用到Map转换JSON，请封装到JavaBean中再转换。

...]]></description><category></category></item><item><title><![CDATA[记录一些灵光一闪的开发想法]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/86523444</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/86523444</guid><author>tavatimsa</author><pubDate>Thu, 17 Jan 2019 14:10:52 +0800</pubDate><description><![CDATA[1.怎么判断哪些数据是热数据，哪些是不经常访问的？
条件允许的时候把数据库所有数据都存入redis里面，再给redis设置过期时间，这样经过一段过期时间，留下来的数据就都是热数据了，redis过期会过滤掉不是热点数据。

...]]></description><category></category></item><item><title><![CDATA[使用GoLand开发学习GO语言的问题记录]]></title><link>https://blog.youkuaiyun.com/tavatimsa/article/details/86135893</link><guid>https://blog.youkuaiyun.com/tavatimsa/article/details/86135893</guid><author>tavatimsa</author><pubDate>Wed, 09 Jan 2019 10:41:33 +0800</pubDate><description><![CDATA[1.runnerw.exe: CreateProcess failed with error 216: 问题。
package GoProject

import &quot;fmt&quot;

func main() {
	fmt.Println(&quot;Hello, World!&quot;)
}

把GoProject包名改成main就能正确运行。

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