<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Lucianklx的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Lucianklx</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Lucianklx]]></copyright><item><title><![CDATA[oracle报错处理]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/130846046</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/130846046</guid><author>Lucianklx</author><pubDate>Wed, 24 May 2023 14:19:01 +0800</pubDate><description><![CDATA[在安装oracle数据库的时候遇到了一系列问题，故作记录。]]></description><category></category></item><item><title><![CDATA[记录一次debug，springcloud，springcloudalibaba，springboot三者之间版本不适配引起的启动类失败]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/125182485</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/125182485</guid><author>Lucianklx</author><pubDate>Wed, 08 Jun 2022 13:03:54 +0800</pubDate><description><![CDATA[springcloud、gateway启动类失败]]></description><category></category></item><item><title><![CDATA[Module build failed: Error: Node Sass version 7.0.1 is incompatible with ^4.0.0.解决方案]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/125164723</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/125164723</guid><author>Lucianklx</author><pubDate>Tue, 07 Jun 2022 14:27:54 +0800</pubDate><description><![CDATA[Module build failed: Error: Node Sass version 7.0.1 is incompatible with ^4.0.0.解决方案]]></description><category></category></item><item><title><![CDATA[Linux放行指定端口]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/125147876</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/125147876</guid><author>Lucianklx</author><pubDate>Mon, 06 Jun 2022 15:36:04 +0800</pubDate><description><![CDATA[Linux放行端口]]></description><category></category></item><item><title><![CDATA[java+spring常用注解]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/124733523</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/124733523</guid><author>Lucianklx</author><pubDate>Thu, 12 May 2022 16:06:46 +0800</pubDate><description><![CDATA[spring开发框架中常用注解]]></description><category></category></item><item><title><![CDATA[springboot打包为jar]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/124732168</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/124732168</guid><author>Lucianklx</author><pubDate>Thu, 12 May 2022 15:25:43 +0800</pubDate><description><![CDATA[springboot 打包为jar

项目测试背景是一个拥有jsp的项目

1.修改pom.xml文件
​     1) 指定打包后的文件名称
&lt;build&gt;
   &lt;!--打包后的文件名称--&gt;
   &lt;finalName&gt;myboot&lt;/finalName&gt;
&lt;/build&gt;

2）指定springboot-maven-plugin版本
&lt;plugins&gt;
   &lt;plugin&gt;
      &lt;groupId&gt]]></description><category></category></item><item><title><![CDATA[mybatis逆向生成代码]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/124709414</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/124709414</guid><author>Lucianklx</author><pubDate>Wed, 11 May 2022 14:28:36 +0800</pubDate><description><![CDATA[使用mybatis插件逆向生成项目工程]]></description><category></category></item><item><title><![CDATA[Error running ‘myToncat‘: Address localhost:8080 is already in use]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/121899294</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/121899294</guid><author>Lucianklx</author><pubDate>Mon, 13 Dec 2021 10:14:09 +0800</pubDate><description><![CDATA[解决启动Tomcat时8080端口被占用]]></description><category></category></item><item><title><![CDATA[Cause: java.sql.SQLException: Field ‘id‘ doesn‘t have a default value]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/121796078</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/121796078</guid><author>Lucianklx</author><pubDate>Wed, 08 Dec 2021 17:12:36 +0800</pubDate><description><![CDATA[org.springframework.dao.DataIntegrityViolationException:
Error updating database.  Cause: java.sql.SQLException: Field ‘id’ doesn’t have a default value
The error may exist in com/spring_trans/dao/SaleDao.xml
The error may involve defaultParameterMap
The e]]></description><category></category></item><item><title><![CDATA[Error building SqlSession. ### Cause: org.apache.ibatis.builder.BuilderException: Error creating d]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/121360236</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/121360236</guid><author>Lucianklx</author><pubDate>Tue, 16 Nov 2021 17:10:09 +0800</pubDate><description><![CDATA[DeBug：
在初学mybatis的时候，报了这个错
Error building SqlSession.
Cause: org.apache.ibatis.builder.BuilderException: Error creating do
Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 6; 不允许有匹配 “[xX][mM][lL]” 的处理指令目标。
最后发现是因为sql映射文件开头空出了一行，而要求是不能]]></description><category></category></item><item><title><![CDATA[基本数据类型和引用数据类型、equals与= =]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/121015643</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/121015643</guid><author>Lucianklx</author><pubDate>Thu, 28 Oct 2021 15:36:31 +0800</pubDate><description><![CDATA[基本数据类型和引用数据类型的区别
Java的数据类型分为两大类，基本数据类型和引用数据类型
基本数据类型
基本数据类型只有8种，分别是：


整数类型：Long，int，short，byte


浮点类型：float，double


字符类型：char


布尔类型：boolean
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-FQzmostj-1635406517729)(C:\Users\Lucian\AppData\Roaming\Typora\typora-user]]></description><category></category></item><item><title><![CDATA[授微信小程序-用户授权]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/119582349</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/119582349</guid><author>Lucianklx</author><pubDate>Wed, 11 Aug 2021 00:06:24 +0800</pubDate><description><![CDATA[关于小程序开发中用户授权没有反应或出错
我一开始用的是 wx.getUserInfo 接口，用这个接口后小程序一直无法授权，上网找解决方案后才得知这个接口已经关闭了，已经更新为 wx.getUserInfo 接口。
官方链接：https://developers.weixin.qq.com/community/develop/doc/000ecabcb642185cfdfb78fe056c01

...]]></description><category></category></item><item><title><![CDATA[类型转换]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/114637082</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/114637082</guid><author>Lucianklx</author><pubDate>Wed, 10 Mar 2021 15:36:03 +0800</pubDate><description><![CDATA[类型转换


由于Java是强类型语言，所以要进行有些运算的时候的，需要用到类型转换。
低…高
byte,short,char-&gt;int-&gt;long-&gt;float-&gt;double



运算中，不同类型的数据先转化成同一类型，然后再进行运算。
eg：
int i=120；
byte b =(byte) i;
double c = i；


​     //强制转换  （类型）变量名    高–低
​     //自动转换                                ]]></description><category></category></item><item><title><![CDATA[变量、常量、作用域]]></title><link>https://blog.youkuaiyun.com/Lucianklx/article/details/114636375</link><guid>https://blog.youkuaiyun.com/Lucianklx/article/details/114636375</guid><author>Lucianklx</author><pubDate>Wed, 10 Mar 2021 15:15:29 +0800</pubDate><description><![CDATA[变量、常量、作用域
变量

变量就是可以变化的量
Java是一种强类型语言，因此每个变量都必须声明其类型
Java变量是程序中最基本的存储单元，其要素包括变量名、变量类型和作用域


注意事项：

每个变量都有类型，类型可以是基本类型，也可以是引用类型。
变量名必须是合法的标识符。
变量声明是一条完整的语句，因此每一个声明都必须以分号结束。


变量作用域

类变量
实例变量
局部变量

public class Test{
String int num = 0;            //类变量
Stri]]></description><category></category></item></channel></rss>