<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[dandelionoooo的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/dandelionoooo</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; dandelionoooo]]></copyright><item><title><![CDATA[mysql8.0以上远程数据库在kettle上配置失败]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/134996353</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/134996353</guid><author>dandelionoooo</author><pubDate>Thu, 14 Dec 2023 15:22:25 +0800</pubDate><description><![CDATA[mysql驱动jar包放入lib后。新建连接 选择成自定义连接即可。]]></description><category></category></item><item><title><![CDATA[编程思想/oop设计模式]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/134807987</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/134807987</guid><author>dandelionoooo</author><pubDate>Tue, 05 Dec 2023 15:18:09 +0800</pubDate><description><![CDATA[接口类似于一个动作的集合，例如一个usb上传功能的接口，它只需要被继承被调用实现usb口的键盘和鼠标的信号数据传输上来，至于数据的承载和处理，需要这个usb接口实现的键盘类和鼠标类来分别承载然后进行处理。我们不能直接去实例化一个接口，因为接口中的方法都是抽象的，是没有方法体的，这样怎么可能产生具体的实例呢？静态方法是属于类的，动态方法属于实例对象，在类加载的时候就会分配内存，可以 通过类名直接去访问，非静态成员（变量和方法）属于类的对象，所以只有该对象初始化之后才存在，然后通过类的对象去访问。]]></description><category></category></item><item><title><![CDATA[oracle max（） 和 inner join 造成的效率过低的优化]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/130889962</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/130889962</guid><author>dandelionoooo</author><pubDate>Fri, 26 May 2023 16:45:03 +0800</pubDate><description><![CDATA[减少统计函数的使用可以优化效率。]]></description><category></category></item><item><title><![CDATA[oracle如何写一个带参数的视图]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/130863054</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/130863054</guid><author>dandelionoooo</author><pubDate>Thu, 25 May 2023 11:09:15 +0800</pubDate><description><![CDATA[--视图的sql部分按照你的需求去写，要用的参数就用包体的get方法去取。------------ 查询视图。--创建包体，写赋值方法。]]></description><category></category></item><item><title><![CDATA[idea git 别人删除我的提交后，我的git总显示提交信息]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/130480749</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/130480749</guid><author>dandelionoooo</author><pubDate>Thu, 04 May 2023 09:31:24 +0800</pubDate><description><![CDATA[在项目的根目录下打开git控制台，然后这些命令。]]></description><category></category></item><item><title><![CDATA[oracle 判断A字符串数组和B字符串数组有交集的字符串个数函数]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/130012625</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/130012625</guid><author>dandelionoooo</author><pubDate>Fri, 07 Apr 2023 15:07:13 +0800</pubDate><description><![CDATA[create or replace function stringArrayIntersectionCount(A in varchar2, B in varchar) return number deterministic  --deterministic 是函数索引，意思是如果输入一样的话就不运行，取上次输入同样入参后运算出来的值。--新增判断A字符串数组和B字符串数组有交集的字符串个数函数。--判断A字符串数组和B字符串数组有交集的字符串个数。晚点等我试试管道函数看看效率是否有提升。]]></description><category></category></item><item><title><![CDATA[异常：No Hibernate Session bound to thread, and configuration does not allow creation]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/129418697</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/129418697</guid><author>dandelionoooo</author><pubDate>Thu, 09 Mar 2023 10:58:06 +0800</pubDate><description><![CDATA[No Hibernate Session bound to thread, and configuration does not allow creation]]></description><category></category></item><item><title><![CDATA[协议从页面传入后台后，在接收时乱码]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/120857017</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/120857017</guid><author>dandelionoooo</author><pubDate>Tue, 28 Feb 2023 16:49:16 +0800</pubDate><description><![CDATA[tomcat 的设置端口的地方要设置字符格式 server.xml。]]></description><category></category></item><item><title><![CDATA[Pulling 1 repository Exception caught during execution of merge command]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/124660921</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/124660921</guid><author>dandelionoooo</author><pubDate>Mon, 09 May 2022 10:30:54 +0800</pubDate><description><![CDATA[cd到根目录，执行 git remote update origin --prune




]]></description><category></category></item><item><title><![CDATA[node.js的npm装好后怎么打包vue文件]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/122173521</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/122173521</guid><author>dandelionoooo</author><pubDate>Mon, 27 Dec 2021 16:03:04 +0800</pubDate><description><![CDATA[如果最后一条执行失败就执行npm run dev，这是vue版本问题


]]></description><category></category></item><item><title><![CDATA[eclipse配置java开发环境（jdk+tomcat+maven+git）]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/121309550</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/121309550</guid><author>dandelionoooo</author><pubDate>Sat, 13 Nov 2021 21:39:29 +0800</pubDate><description><![CDATA[准备工作：

先安装好eclipse，jdk，配置好jdk和maven的环境变量

1.配置jdk

windows-preferences-java-installed JRES-add 选择你安装的jdk

这里双击jdk，可以设置程序运行时所占的内存



我这可能会运行比较大的程序，内存就设置成这样了：-Xms512m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=1024m

提交后接下来设置java下面compiler，jdk选择1.6



提交后..]]></description><category></category></item><item><title><![CDATA[mysql8.0安装包的安装和设置密码]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/121308858</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/121308858</guid><author>dandelionoooo</author><pubDate>Sat, 13 Nov 2021 19:42:43 +0800</pubDate><description><![CDATA[1.先把mysql安装包解压到你想要的文件夹

2.跳转到文件夹的bin目录下

3.先执行mysqld --initialize-insecure生成无初始密码的文件，

再mysqld -install安装服务4.net start mysql启动服务5.输入mysql -uroot -p，并且要求输入密码时直接回车，进入mysql服务中6. 通过输入 ALTER USER 'root'@'localhost' IDENTIFIED BY 'xxx';

设置你想要的密码

7.密码设置成功了。可以..]]></description><category></category></item><item><title><![CDATA[mysql8.0密码设置之后登陆不上的问题]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/108462657</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/108462657</guid><author>dandelionoooo</author><pubDate>Tue, 08 Sep 2020 10:02:12 +0800</pubDate><description><![CDATA[执行alter user 'root'@'localhost' identified with mysql_native_password by '密码'; 后，执行

select host, user, authentication_string, plugin from user; root那行密码是没有加密过的密码导致一直登不上。

解决方法是执行alter user 'root'@'localhost' identified by '密码';密码显示成一串加密字符串，验证也没有问题，就没有问题了
]]></description><category></category></item><item><title><![CDATA[mysql启动报1067，且无报错信息]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/105429222</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/105429222</guid><author>dandelionoooo</author><pubDate>Fri, 10 Apr 2020 11:17:45 +0800</pubDate><description><![CDATA[找到mysql安装目录下的my.ini,删除后重启
]]></description><category></category></item><item><title><![CDATA[tomcat部署多个项目]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/102870027</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/102870027</guid><author>dandelionoooo</author><pubDate>Sat, 02 Nov 2019 11:32:39 +0800</pubDate><description><![CDATA[找到apache-tomcat-9.0.8_x64\conf路径下的server.xml,

在如图的红框里这样设置。path是网页上的路径，docBase是项目的路径
]]></description><category></category></item><item><title><![CDATA[work文件夹下没有文件但是wtpwebapps里面有正常编译的文件，也没有报错]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/102636514</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/102636514</guid><author>dandelionoooo</author><pubDate>Sat, 19 Oct 2019 11:26:35 +0800</pubDate><description><![CDATA[在页面输入localhost:8080/xxx（项目名）打不开网页，试过属性里专门设置webroot路径，重新创建tomcat，升级tomcat，重启电脑都不行。偶然的机会发现输入tomcat根目录打开了网页，才发现网页跑到根目录下去了。更改根目录选中项目，project-属性-Web Projiect Settings 更改
...]]></description><category></category></item><item><title><![CDATA[JAR creation failed. See details for additional information.]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/100152166</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/100152166</guid><author>dandelionoooo</author><pubDate>Fri, 30 Aug 2019 10:30:49 +0800</pubDate><description><![CDATA[打包老是失败，检查发现启动文件不是打包的项目下的
]]></description><category></category></item><item><title><![CDATA[javax.naming.NamingException: No naming context bound to this class loader]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/99827331</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/99827331</guid><author>dandelionoooo</author><pubDate>Tue, 20 Aug 2019 11:00:56 +0800</pubDate><description><![CDATA[因为之前用tomcat编译其他项目好好的， 但是编译这个新项目不行，所以我觉得是项目少了点啥。根据网上查找到的资料，

我这的问题是项目中没有tomcat依赖包：

右键工程--&gt;Build Path--&gt;Configure Build Path...--&gt;选中Libraries--&gt;Add Library...--&gt;Server Runtime--&gt;Next-...]]></description><category></category></item><item><title><![CDATA[mysql报innodb_force_recovery>0]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/99716236</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/99716236</guid><author>dandelionoooo</author><pubDate>Mon, 19 Aug 2019 10:58:43 +0800</pubDate><description><![CDATA[今天数据库宕机了，只能查询不能增删改，看了下日志报的innodb_force_recovery&gt;0这个。网上的资料说当innodb_force_recovery大于0时只允许查询，做法是把my.ini里面的innodb_force_recovery值改成0.我找到了文件，发现并没有innodb_force_recovery属性，就自己添加了一个innodb_force_recovery=0进...]]></description><category></category></item><item><title><![CDATA[怎么把mysql字段中的双引号转义]]></title><link>https://blog.youkuaiyun.com/dandelionoooo/article/details/99451334</link><guid>https://blog.youkuaiyun.com/dandelionoooo/article/details/99451334</guid><author>dandelionoooo</author><pubDate>Tue, 13 Aug 2019 17:11:21 +0800</pubDate><description><![CDATA[SELECT REPLACE(feeValues, "\"", "\\\"") FROM p_charge_type;
]]></description><category></category></item></channel></rss>