<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[collins7的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/collins7</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; collins7]]></copyright><item><title><![CDATA[2021-05-28]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/117357691</link><guid>https://blog.youkuaiyun.com/collins7/article/details/117357691</guid><author>collins7</author><pubDate>Fri, 28 May 2021 11:58:39 +0800</pubDate><description><![CDATA[mysql创建用户密码
测试用的账户一般比较简单，可以先降低密码
默认密码等级为中等，限制大小写及长度，执行以下语句可查看等级
select @@validate_password_policy;

执行以下语句可降低等级
set global validate_password_policy=‘LOW’;
替换下面的用户密码，即可定义新用户
CREATE USER ‘xxxUSERxxx’@‘host’ IDENTIFIED BY ‘xxxPWDxxxx’;

...]]></description><category></category></item><item><title><![CDATA[java.net.ConnectException: Connection refused:]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/100707371</link><guid>https://blog.youkuaiyun.com/collins7/article/details/100707371</guid><author>collins7</author><pubDate>Wed, 11 Sep 2019 15:07:42 +0800</pubDate><description><![CDATA[java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[na:1.8.0_171]
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketCh...]]></description><category></category></item><item><title><![CDATA[java.lang.ClassNotFoundException: org.springframework.core.KotlinDetector]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/100546743</link><guid>https://blog.youkuaiyun.com/collins7/article/details/100546743</guid><author>collins7</author><pubDate>Wed, 04 Sep 2019 20:32:49 +0800</pubDate><description><![CDATA[java.lang.ClassNotFoundException: org.springframework.core.KotlinDetector
可能是版本太低；做redis+spring整合实验时出现、springframework改成5.0之后的版本
    &lt;dependency&gt;
        &lt;groupId&gt;org.springframework&lt;/g...]]></description><category></category></item><item><title><![CDATA[java.lang.InstantiationException  cause：  tk.mybatis.mapper.provider.base.BaseSelectProvider]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/100116530</link><guid>https://blog.youkuaiyun.com/collins7/article/details/100116530</guid><author>collins7</author><pubDate>Wed, 28 Aug 2019 21:28:33 +0800</pubDate><description><![CDATA[java.lang.InstantiationException  cause：  tk.mybatis.mapper.provider.base.BaseSelectProvider
1）版本冲突，导致构建失败
2)  启动类包扫描路径不对
3）启动类所用的扫描mapper文件的注解，引用错包了，有三个地方要引用tk.mapper的包（dao、service、启动类）
B》
ERROR 1572...]]></description><category></category></item><item><title><![CDATA[表中字段名与类字段名冲突]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/100026382</link><guid>https://blog.youkuaiyun.com/collins7/article/details/100026382</guid><author>collins7</author><pubDate>Thu, 22 Aug 2019 23:30:09 +0800</pubDate><description><![CDATA[命名不规范，导致各种冲突

]]></description><category></category></item><item><title><![CDATA[freemarker生成静态页面]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/99847349</link><guid>https://blog.youkuaiyun.com/collins7/article/details/99847349</guid><author>collins7</author><pubDate>Tue, 20 Aug 2019 15:28:55 +0800</pubDate><description><![CDATA[静态页面，Template对象，传入map+写入流生成静态页面，到target/static/page 目录下
把流对象的创建放到try()中，程序会自动关流
上图程序运行会报空指针异常
maven编译打包的时候，空文件夹不会打包。所以会出现在启动运行测试的时候，明明创建了该文件夹，但是target中相应目录下，不会生成该文件，在用getResource方法去获取class path路径的时候，会...]]></description><category></category></item><item><title><![CDATA[jdk1.8之后的hashmap]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/99715803</link><guid>https://blog.youkuaiyun.com/collins7/article/details/99715803</guid><author>collins7</author><pubDate>Mon, 19 Aug 2019 10:49:04 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[redis配置记录注意事项]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/99690736</link><guid>https://blog.youkuaiyun.com/collins7/article/details/99690736</guid><author>collins7</author><pubDate>Sat, 17 Aug 2019 11:23:40 +0800</pubDate><description><![CDATA[安装
首先，将redis的安装包上传到服务器上，我们将其存放到usr/myapps中
第一：安装gcc环境
yum -y install gcc-c++
第二：解压redis源码包
tar -zxvf redis-4.0.6.tar.gz
第三：编译redis源码
make
第四：安装redis
make install PREFIX=/usr/local/redis4
bin目录下，有redis...]]></description><category></category></item><item><title><![CDATA[dubbomonitor启动失败，无法启动]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/99685877</link><guid>https://blog.youkuaiyun.com/collins7/article/details/99685877</guid><author>collins7</author><pubDate>Fri, 16 Aug 2019 21:29:38 +0800</pubDate><description><![CDATA[一直…启动不了
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阿里云1G内存，太小，修改start.sh启动配置文件，启动内存默认为2G，修改为1G
if [ -n "$BITS" ]; then

    JAVA_MEM_OPTS=" -server -Xmx2g -Xms2g -Xmn256m -XX:PermSize=128m -Xss256k -XX:+DisableExplicitGC -XX:+UseConcMark...]]></description><category></category></item><item><title><![CDATA[数据库连接出错，sql exception,数据库时区冲突]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/99681796</link><guid>https://blog.youkuaiyun.com/collins7/article/details/99681796</guid><author>collins7</author><pubDate>Fri, 16 Aug 2019 17:01:15 +0800</pubDate><description><![CDATA[sql   exception   :  The server time zone value '�й���׼ʱ��' is unrecogni的解决
持久层，数据库连接报错
配置文件中对于MySQL的URL后面加上?serverTimezone=UTC
在hibernate.cfg.xml配置文件中对于MySQL的URL后面加上?serverTimezone=UTC ，如下：
&lt;prope...]]></description><category></category></item><item><title><![CDATA[springboot整合dubbo创建消费者项目，启动报错：找不到数据库驱动]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/94436551</link><guid>https://blog.youkuaiyun.com/collins7/article/details/94436551</guid><author>collins7</author><pubDate>Tue, 02 Jul 2019 11:49:18 +0800</pubDate><description><![CDATA[APPLICATION FAILED TO START

Description:
Failed to configure a DataSource: ‘url’ attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable dri...]]></description><category></category></item><item><title><![CDATA[springboot项目发布服务，总有一个service无法发布]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/94434380</link><guid>https://blog.youkuaiyun.com/collins7/article/details/94434380</guid><author>collins7</author><pubDate>Tue, 02 Jul 2019 11:05:13 +0800</pubDate><description><![CDATA[service服务发布失败

圈圈标识的C图标有点特别，也是这个服务一直无法发布，百度查idea图标，都找不到这个图标，因为刚更新应该，所以最好还是去官网直接查图标的含义，别人的截图可能过期了，（我用的2017.2.5版本的idea，但是图标却是最新的，可能会自动更新）
查了下官网，才找到上面标识的图标，如下图，是表示抽象类，自己坑自己！！抽象类当然不能发布。。（应该是alt+enter的时候，不...]]></description><category></category></item><item><title><![CDATA[idea展示启动项列表在启动框运行框内]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/94401558</link><guid>https://blog.youkuaiyun.com/collins7/article/details/94401558</guid><author>collins7</author><pubDate>Mon, 01 Jul 2019 18:07:15 +0800</pubDate><description><![CDATA[第一张图，打开启动项配置，把Show in Run Dashboard勾上

]]></description><category></category></item><item><title><![CDATA[springboot启动多个项目报端口占用（idea启动多个项目端口冲突）]]></title><link>https://blog.youkuaiyun.com/collins7/article/details/94400372</link><guid>https://blog.youkuaiyun.com/collins7/article/details/94400372</guid><author>collins7</author><pubDate>Mon, 01 Jul 2019 17:54:06 +0800</pubDate><description><![CDATA[端口冲突，强制关闭进程
老是搜idea启动多个项目端口冲突，结果很多大牛的写的解决办法是关闭占用端口的程序，下面是用cmd关闭

其实可以直接在任务管理器关闭，甚至直接在idea里面关闭的效果是一样的！！

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最终，你怎么关都是没有用的，springboot项目如果不在application.yml中配置server.port:808?,则默认发布到8080，那必定冲突，第一个项目可以不配，默...]]></description><category></category></item></channel></rss>