<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[owisho_java的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/owisho_java</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; owisho_java]]></copyright><item><title><![CDATA[常用Sed命令]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/135222183</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/135222183</guid><author>owisho_java</author><pubDate>Tue, 26 Dec 2023 14:55:47 +0800</pubDate><description><![CDATA[file_name 要查看的文件名。$start_line 开始数据行。$end_line 结束数据行。]]></description><category></category></item><item><title><![CDATA[kafka消费积压问题排查小结]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/129443005</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/129443005</guid><author>owisho_java</author><pubDate>Fri, 10 Mar 2023 16:41:16 +0800</pubDate><description><![CDATA[kafka消费积压问题排查总结]]></description><category></category></item><item><title><![CDATA[Java Security 入门（从java17之后被弃用）]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/129311580</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/129311580</guid><author>owisho_java</author><pubDate>Fri, 03 Mar 2023 00:35:54 +0800</pubDate><description><![CDATA[java security]]></description><category></category></item><item><title><![CDATA[k8s 入门]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/129296176</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/129296176</guid><author>owisho_java</author><pubDate>Thu, 02 Mar 2023 16:29:35 +0800</pubDate><description><![CDATA[k8s入门]]></description><category></category></item><item><title><![CDATA[shell 学习-不定期更新]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/129108473</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/129108473</guid><author>owisho_java</author><pubDate>Sun, 19 Feb 2023 11:19:13 +0800</pubDate><description><![CDATA[bash shell 学习]]></description><category></category></item><item><title><![CDATA[Install or enable PHP‘s pcntl extension.]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/128973268</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/128973268</guid><author>owisho_java</author><pubDate>Fri, 10 Feb 2023 17:17:48 +0800</pubDate><description><![CDATA[缺少php pcntl extension 问题解决]]></description><category></category></item><item><title><![CDATA[HashiCorp Vault 秘钥管理]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/128797802</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/128797802</guid><author>owisho_java</author><pubDate>Mon, 30 Jan 2023 11:06:23 +0800</pubDate><description><![CDATA[秘钥管理工具vault入门学习]]></description><category></category></item><item><title><![CDATA[airflow 基础入门]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/126716211</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/126716211</guid><author>owisho_java</author><pubDate>Tue, 06 Sep 2022 00:39:59 +0800</pubDate><description><![CDATA[airflow 基础]]></description><category></category></item><item><title><![CDATA[一文搞懂makefile]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/126527788</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/126527788</guid><author>owisho_java</author><pubDate>Thu, 25 Aug 2022 16:39:06 +0800</pubDate><description><![CDATA[makefile 介绍]]></description><category></category></item><item><title><![CDATA[SpringWebSecurity 笔记]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/119114696</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/119114696</guid><author>owisho_java</author><pubDate>Mon, 26 Jul 2021 18:03:35 +0800</pubDate><description><![CDATA[用户自定义WebSecurityConfig初始化流程：

    WebSecurityConfiguration配置类在初始化时，通过setFilterChainProxySecurityConfigurer方法注入用户自定义WebSecurityConfigurerAdapter子类；用户自定义子类被放入到WebSecurityConfiguration配置类的webSecurity对象中；


@Autowired(required=false)
public void se...]]></description><category></category></item><item><title><![CDATA[同一个网站两次Request不同session问题排查记录]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/118968786</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/118968786</guid><author>owisho_java</author><pubDate>Wed, 21 Jul 2021 16:06:42 +0800</pubDate><description><![CDATA[现象：

    两次request的hashCode相同，但request.getSession()获取到的session却不同；



排查记录：

其在 Chrome Devlope tools中 对应的提示：接口在 Response 响应头中Set-Cookie 时 失败。




This Set-Cookie was blocked because it was not sent over a secure-connection and would have overwr...]]></description><category></category></item><item><title><![CDATA[springboot2整合oauth2笔记]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/118857113</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/118857113</guid><author>owisho_java</author><pubDate>Sat, 17 Jul 2021 17:11:33 +0800</pubDate><description><![CDATA[老大说要拥抱开源才能进步，所以抛砖引玉，欢迎评论和指教

基础知识：

    我眼中的oauth2：



   oauth2四个基本角色：

        1.Resource Owner: 资源的拥有者（个人理解使用client的人或。。。）

        2.Client：某一个具体的应用或app等等

        3.Authorization Server：授权中心服务（根据代码调...]]></description><category></category></item><item><title><![CDATA[csrf（cross site request forgery）攻击笔记]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/118436867</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/118436867</guid><author>owisho_java</author><pubDate>Sat, 03 Jul 2021 10:58:05 +0800</pubDate><description><![CDATA[概念

概念

恶意（evil）网站携带正规网站凭据信息，向正规网站发送恶意请求；（由于携带的凭据cookie为正规网站签发的凭据，正规网站未识别出为恶意请求，执行结果造成损失）

保护措施

    1、使用csrf token（工作原理：打开受保护资源的时候携带随机csrf token，在之后

       提交请求时，将csrf token一并提交给后台，用于csrf校验）

        1.1、csrf token 应该不会被浏览器自动放置...]]></description><category></category></item><item><title><![CDATA[memcache入门]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/118382023</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/118382023</guid><author>owisho_java</author><pubDate>Thu, 01 Jul 2021 11:53:55 +0800</pubDate><description><![CDATA[初步了解

    通过https://www.cnblogs.com/xrq730/p/4948707.html这个文章对memcache做了简单了解

    官网wiki内容感觉有点太笼统，没看懂

本地安装

    环境：mac 11.0.1

    1、官网（https://memcached.org/downloads）下载最新稳定版本memcached-1.6.9.tar.gz

    2、解压到指定目录（/app/memcached-1.6.9...]]></description><category></category></item><item><title><![CDATA[Java heap 内存溢出（java.lang.OutOfMemoryError: Java heap space）]]></title><link>https://blog.youkuaiyun.com/owisho_java/article/details/106386482</link><guid>https://blog.youkuaiyun.com/owisho_java/article/details/106386482</guid><author>owisho_java</author><pubDate>Wed, 27 May 2020 17:53:32 +0800</pubDate><description><![CDATA[产生原因：

代码中使用大对象：Java8的JVM会将大对象直接分配到Old Generation中，Old Generation的数据只会在FULL GC的时候被回收；Full GC执行机制（暂不清楚）；未执行Full GC的情况下，如果再次创建大对象，那么大对象还会导致JVM去申请新的Old Generation空间；但Old Generation不会无限增大（应该有上限吧：个人经历：32G Ubuntu系统，未指定任何JVM参数，Eden、From、To各1G左右大小，Old Generation 5]]></description><category></category></item></channel></rss>