<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[qq_35745341的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/qq_35745341</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; qq_35745341]]></copyright><item><title><![CDATA[java程序生成pdf或wod乱码]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/154011499</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/154011499</guid><author>qq_35745341</author><pubDate>Tue, 28 Oct 2025 11:16:13 +0800</pubDate><description><![CDATA[摘要：PDF生成乱码是因服务器缺少字体文件，可通过两种方式解决：1）从正常服务器打包/usr/share/fonts下的字体文件（如dejavu、google-droid等），复制到目标服务器解压后执行fc-cache刷新；2）直接联网安装字体包（Debian/Ubuntu用apt，RHEL/CentOS用yum），安装后同样需刷新字体缓存。两种方法均可补充缺失字体解决乱码问题。（150字）]]></description><category></category></item><item><title><![CDATA[springsecurity Authentication在异步执行时会出现丢失问题]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/149250079</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/149250079</guid><author>qq_35745341</author><pubDate>Thu, 10 Jul 2025 14:52:21 +0800</pubDate><description><![CDATA[B方法会丢失SecurityContext的上下文信息。B方法上加@Async注解。]]></description><category></category></item><item><title><![CDATA[Redis反序列化失败问题]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/148843364</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/148843364</guid><author>qq_35745341</author><pubDate>Mon, 23 Jun 2025 11:50:00 +0800</pubDate><description><![CDATA[redis反序列化类似于List 数据结构时，需要知道类型信息，]]></description><category></category></item><item><title><![CDATA[Mybatis 判断失效]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/148295495</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/148295495</guid><author>qq_35745341</author><pubDate>Thu, 29 May 2025 07:39:30 +0800</pubDate><description><![CDATA[字符串判断要用" "包裹,]]></description><category></category></item><item><title><![CDATA[springboot jpa Instant]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/146565999</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/146565999</guid><author>qq_35745341</author><pubDate>Thu, 27 Mar 2025 17:05:52 +0800</pubDate><description><![CDATA[确保转换器Instant2DateConverter 被扫描到。]]></description><category></category></item><item><title><![CDATA[Apache RocketMQ 5.1.3安装部署文档]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/144674557</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/144674557</guid><author>qq_35745341</author><pubDate>Mon, 23 Dec 2024 18:17:19 +0800</pubDate><description><![CDATA[Apache RocketMQ  5.0+   JDK 17 安装部署]]></description><category></category></item><item><title><![CDATA[centos7安装mysql8.0]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/141903380</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/141903380</guid><author>qq_35745341</author><pubDate>Wed, 04 Sep 2024 20:40:57 +0800</pubDate><description><![CDATA[根据参考链接，提前建立目录。]]></description><category></category></item><item><title><![CDATA[centos7解决Cannot find a valid baseurl for repo: base/7/x86_64]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/141902498</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/141902498</guid><author>qq_35745341</author><pubDate>Wed, 04 Sep 2024 20:00:46 +0800</pubDate><description><![CDATA[将Centos-7.repo改名为CentOS-Base.repo。在/etc/yum.repos.d目录下有个。大概率是yum源的问题。]]></description><category></category></item><item><title><![CDATA[idea debug maven编译期运行的代码(AbstractProcessor)]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/140569872</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/140569872</guid><author>qq_35745341</author><pubDate>Sat, 20 Jul 2024 13:24:47 +0800</pubDate><description><![CDATA[建立maven项目A，该项目作为第三方jar供人使用，类似于hutool工具；A中有类继承AbstractProcessor重写了process方法。等待几秒程序会断在项目A你打的断点上，如若没有，检查项目A代码。3.在项目A建立Remote JVM Debug。建立测试项目B，B项目引用了A。端口写8000或修改的端口。2.在项目B中终端上执行。]]></description><category></category></item><item><title><![CDATA[centos离线安装mosquitto]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/135031726</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/135031726</guid><author>qq_35745341</author><pubDate>Sat, 16 Dec 2023 13:34:43 +0800</pubDate><description><![CDATA[本次真正要安装的机器是x86_64架构的AMD Ryzen 3 ，操作系统是centos7先找一台能联网的centos7机器添加 EPEL 软件库下载rpm包把这些包拷贝进待安装的机器安装即可。]]></description><category></category></item><item><title><![CDATA[深度剖析static关键字和static代码块执行顺序]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/131321609</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/131321609</guid><author>qq_35745341</author><pubDate>Wed, 21 Jun 2023 09:50:09 +0800</pubDate><description><![CDATA[总结一下（父静子静，父非静，父构造，子非静，子构造）（同一类中相同内容的比如静态或者非静态实例的执行顺序都是从上往下依次执行）2.static代码块执行顺序。非静指的是：普通变量，构造块。1.static基本使用场景。父类的静态属性初始化。子类的静态属性初始化。父类的实例属性初始化。子类的实例属性初始化。]]></description><category></category></item><item><title><![CDATA[无网络maven私服添加jar和pom]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/127982523</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/127982523</guid><author>qq_35745341</author><pubDate>Tue, 22 Nov 2022 14:47:58 +0800</pubDate><description><![CDATA[内网添加maven依赖]]></description><category></category></item><item><title><![CDATA[spring-boot-maven-plugin打可依赖包]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/127662943</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/127662943</guid><author>qq_35745341</author><pubDate>Thu, 03 Nov 2022 08:41:07 +0800</pubDate><description><![CDATA[maven打包, package 不存在问题]]></description><category></category></item><item><title><![CDATA[maven获取最新的快照版本]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/125293320</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/125293320</guid><author>qq_35745341</author><pubDate>Wed, 15 Jun 2022 11:15:56 +0800</pubDate><description><![CDATA[maven 快照 更新 最新版本]]></description><category></category></item><item><title><![CDATA[centos7安装mysql5.7]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/125269713</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/125269713</guid><author>qq_35745341</author><pubDate>Mon, 13 Jun 2022 23:48:41 +0800</pubDate><description><![CDATA[centos7 安装 mysql5.7 ]]></description><category></category></item><item><title><![CDATA[No buffer space available (maximum connections reached?): bind]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/124591001</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/124591001</guid><author>qq_35745341</author><pubDate>Thu, 05 May 2022 16:10:26 +0800</pubDate><description><![CDATA[1、问题现象
java程序在windows server 2008 R2 弹窗崩溃
2、分析日志
多个模块报错关键信息:No buffer space available (maximum connections reached?): bind
3、分析原因
问题可能原因为
(1)windows server 2008 R2 系统bug

微软官方链接
(2)连接数过多
系统并发过大，连接数过多，部分socket连接无法释放关闭，而持续请求又导致无法释放的socket连接不断积压，最终导致No buffer]]></description><category></category></item><item><title><![CDATA[项目开发流程]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/124150143</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/124150143</guid><author>qq_35745341</author><pubDate>Wed, 13 Apr 2022 15:57:16 +0800</pubDate><description><![CDATA[1、需求评审会
明确需求，确保自己想的和产品或者同时想的是一致的，讲出来让大家评审
2、功能流程图
确保流程正确，数据流向正确。
3、库表设计
设计完成以后，同步给团队评审，统一表列名，去除不合理的地方。理清表之间的关联关系；考虑对原有库表数据兼容。
4、讨论接口（对内，对外）名称，入参，出参格式，前端必须参与，产品根据具体情况旁听
5、功能，接口影响范围（老的功能，接口，数据）；尽量遵守"对修改关闭，对新增开放"原则。
6、代码规范，注释清晰；逻辑过长时，进行封装。

...]]></description><category></category></item><item><title><![CDATA[Jmeter使用教程]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/123930245</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/123930245</guid><author>qq_35745341</author><pubDate>Sat, 02 Apr 2022 22:20:54 +0800</pubDate><description><![CDATA[1、optins-&gt;change language 、外观
2、设置http请求默认值

设置协议 域名（ip） 端口
3、添加HTTP请求

4、添加监听器 -&gt;监听结果

5、保存测试计划
6、执行

]]></description><category></category></item><item><title><![CDATA[@Resource与@Autowired区别]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/123054885</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/123054885</guid><author>qq_35745341</author><pubDate>Mon, 21 Feb 2022 20:10:28 +0800</pubDate><description><![CDATA[前者默认byName也可byType，后者只能byType，若需byName，则需要@Qualifier注解配合
前者由jdk实现，后者spring实现

]]></description><category></category></item><item><title><![CDATA[Spring事务失效的原因]]></title><link>https://blog.youkuaiyun.com/qq_35745341/article/details/123054753</link><guid>https://blog.youkuaiyun.com/qq_35745341/article/details/123054753</guid><author>qq_35745341</author><pubDate>Mon, 21 Feb 2022 20:05:22 +0800</pubDate><description><![CDATA[1、数据库引擎不支持事务MYISAM
2、servcie类没有被 Spring 管理
3、方法不是 public 的
4、自身调用问题（没被@Transcational修饰的方法调用了被@Transcational修饰的方法）
5、异常被吃了，抛出了Exception而不是RuntimeExeception

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