<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[user_q的博客]]></title><description><![CDATA[学习笔记+学习心得+踩过的各种坑]]></description><link>https://blog.youkuaiyun.com/user_q</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; user_q]]></copyright><item><title><![CDATA[swagger-bootstrap-ui 和 thymeleaf 静态资源冲突]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/120553833</link><guid>https://blog.youkuaiyun.com/user_q/article/details/120553833</guid><author>user_q</author><pubDate>Wed, 29 Sep 2021 19:01:38 +0800</pubDate><description><![CDATA[最近做的项目需要对外提供接口，由于处于开发测试阶段，接口可能随时会修改。考虑到接口一变更，对应的接口文档也需要不断修改，所以就引入了在线接口文档swagger-bootstrap-ui 直接提供在线接口文档供调用方查看。在正式引入前，搭建demo测试没问题,效果如下

关于springboot整合swagger-bootstrap-ui网上有好多教程，我看的是这篇SpringBoot集成Swagger-Bootstrap-UI

好，既然没问题，那直接引入项目，欸，这是怎么...]]></description><category></category></item><item><title><![CDATA[BigDecimal 除法]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/106670300</link><guid>https://blog.youkuaiyun.com/user_q/article/details/106670300</guid><author>user_q</author><pubDate>Sat, 13 Jun 2020 16:25:48 +0800</pubDate><description><![CDATA[今天在用到 BigDecimal 做除法时候遇到这样一个错


java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result

后面一查，发现是对BigDecimal 不熟悉，用错方法的缘故。BigDecimal 类型用 divide(BigDecimal divisor)方法做除法的时候，如果除不尽，就会报上面的这个错。正确的操作应该是用它的重载方法 ...]]></description><category></category></item><item><title><![CDATA[DockerToolBox国内镜像]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/96431930</link><guid>https://blog.youkuaiyun.com/user_q/article/details/96431930</guid><author>user_q</author><pubDate>Thu, 18 Jul 2019 15:26:33 +0800</pubDate><description><![CDATA[http://mirrors.aliyun.com/docker-toolbox/windows/docker-toolbox/
]]></description><category></category></item><item><title><![CDATA[Eclipse目录树字体修改]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/89555417</link><guid>https://blog.youkuaiyun.com/user_q/article/details/89555417</guid><author>user_q</author><pubDate>Fri, 26 Apr 2019 16:14:26 +0800</pubDate><description><![CDATA[打开 Eclipse安装目录下：\plugins\org.eclipse.ui.themes_1.2.200.v20180828-1350\css\e4_default_win.css


CTabFolder Tree{
	font-size: 15px;
	font-family: SimHei;
}

可选字体：

宋体 SimSun

黑体 SimHei

微软雅黑 Microsoft...]]></description><category></category></item><item><title><![CDATA[云服务器tomcat环境下域名解析,环境搭建]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/85497837</link><guid>https://blog.youkuaiyun.com/user_q/article/details/85497837</guid><author>user_q</author><pubDate>Tue, 01 Jan 2019 01:44:36 +0800</pubDate><description><![CDATA[环境准备：购买域名，备案；云服务器环境：jdk，Tomcat。

第一步：域名解析

域名解析其实很简单，进入云解析，添加两条解析记录，绑定到自己服务器公网ip就好。

详细步骤 参考这篇博客：云解析详细步骤

解析完成后，过几分钟 才会生效，此时记得ping一下你的域名，看能不能得到你绑定ip的回信。

第二步：Tomca环境修改

Tomcat默认端口是8080，域名解析之后只是绑定到了ip端...]]></description><category></category></item><item><title><![CDATA[Redis在Windows系统下安装成服务]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/85223966</link><guid>https://blog.youkuaiyun.com/user_q/article/details/85223966</guid><author>user_q</author><pubDate>Sun, 23 Dec 2018 17:58:50 +0800</pubDate><description><![CDATA[我们知道Redis没有Windows系统的安装版。Windows系统下使用Redis，每次都要打开他的redis-server.exe，并保持cmd窗口不关闭，才能正常使用。要是一不小心关掉cmd窗口，那Redis服务也关闭了。

其实Redis也可以做成本地服务的，就像mysql那样在 我的电脑--管理--服务 中打开。

首先，启动Redis服务端。进入Redis解压目录下，双击redis-s...]]></description><category></category></item><item><title><![CDATA[thymeleaf 中onclick动态传参用到转义字符]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/84531412</link><guid>https://blog.youkuaiyun.com/user_q/article/details/84531412</guid><author>user_q</author><pubDate>Mon, 26 Nov 2018 11:39:43 +0800</pubDate><description><![CDATA[
&amp;lt;a href=&quot;javascript:void(0)&quot; th:onclick=&quot;'javascript:del(\''+${product.id}+'\')'&quot;&amp;gt;删除&amp;lt;/a&amp;gt;

    th:onclick=&quot;'javascript:del(\'  '+${product.id}+' \')'&quot;]]></description><category></category></item><item><title><![CDATA[mybatis通用mapper的Example查询]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/84403026</link><guid>https://blog.youkuaiyun.com/user_q/article/details/84403026</guid><author>user_q</author><pubDate>Sat, 24 Nov 2018 16:21:57 +0800</pubDate><description><![CDATA[    mybatis的通用mapper，多用于单表查询，接口内部为我们提供了单表查询的基础查询语法，可以极大地帮助我们简化编程。

接下来让我们动手试一试：

我建的是springboot项目：

先导依赖：


		&amp;lt;dependency&amp;gt;
			&amp;lt;groupId&amp;gt;tk.mybatis&amp;lt;/groupId&amp;gt;
			&amp;lt;artifactId&amp;gt;mappe...]]></description><category></category></item><item><title><![CDATA[Spring Cloud中关于Feign的常见问题]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/83958266</link><guid>https://blog.youkuaiyun.com/user_q/article/details/83958266</guid><author>user_q</author><pubDate>Sun, 11 Nov 2018 14:14:33 +0800</pubDate><description><![CDATA[转载：自脚本之家：https://www.jb51.net/article/106950.htm

一、FeignClient接口，不能使用@GettingMapping 之类的组合注解

代码示例：


			1

			2

			3

			4

			5

			6
			
			
			@FeignClient(&quot;microservice-provider-user&quot;)

			publ...]]></description><category></category></item><item><title><![CDATA[关闭Eureka自我保护模式]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/83958248</link><guid>https://blog.youkuaiyun.com/user_q/article/details/83958248</guid><author>user_q</author><pubDate>Sun, 11 Nov 2018 14:11:55 +0800</pubDate><description><![CDATA[yml文件添加以下配置：


eureka:
  server:
    enable-self-preservation: false

 ]]></description><category></category></item><item><title><![CDATA[Oracle常规操作整理（容易遗忘的）持续更新...]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/83052929</link><guid>https://blog.youkuaiyun.com/user_q/article/details/83052929</guid><author>user_q</author><pubDate>Mon, 15 Oct 2018 00:21:00 +0800</pubDate><description><![CDATA[1、查看自己创建的序列;
           select * from user_sequences;

2、删除表之后，表其实是被放进了回收站，这时  select * from tab；会看到以BIN$开头的表，这些是drop删除的表，还在回收站：用 以下命令清空回收站

purge recyclebin ; 

3、修改表中字段长度；

 alter table 表名  modify 字...]]></description><category></category></item><item><title><![CDATA[Oracle数据类型]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/83050253</link><guid>https://blog.youkuaiyun.com/user_q/article/details/83050253</guid><author>user_q</author><pubDate>Sun, 14 Oct 2018 20:28:00 +0800</pubDate><description><![CDATA[数值型  

整数  number(n)  n是位数 1&amp;lt;=n&amp;lt;=38，  

        eg： create table t2(id number(3));取值范围为[-999,999]

浮点数number(p,s),其中p为所有的位数,取值范围为[1,38]，s为小数位数,取值范围为[-84,127]
                   eg:number(5,1)  [...]]></description><category></category></item><item><title><![CDATA[Oracle数据库下对用户的基本操作]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/83049810</link><guid>https://blog.youkuaiyun.com/user_q/article/details/83049810</guid><author>user_q</author><pubDate>Sun, 14 Oct 2018 20:07:33 +0800</pubDate><description><![CDATA[1、连接数据库  sqlplus 用户名/密码；

2、用sysdba创建用户：



3、用户切换



4、用户权限



5、权限回收



用户权限的颗粒度太小，所以管理比较复杂，所以引入了角色

三个重要的系统预定义的角色：

        connect表示连接数据库的权限，一般授予给最终用户
        resource表示数据库资源的操作权限，一般授予给开发人员
      ...]]></description><category></category></item><item><title><![CDATA[用putty的ftp上传文件到云服务器]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/82929668</link><guid>https://blog.youkuaiyun.com/user_q/article/details/82929668</guid><author>user_q</author><pubDate>Sat, 06 Oct 2018 16:05:18 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[Spring+SpringMVC+Mybatis项目中pom.xml模板]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/82951369</link><guid>https://blog.youkuaiyun.com/user_q/article/details/82951369</guid><author>user_q</author><pubDate>Sat, 06 Oct 2018 15:49:10 +0800</pubDate><description><![CDATA[
&amp;lt;project xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot;
	xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
	xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4...]]></description><category></category></item><item><title><![CDATA[SpringMVC项目中 web.xml模板]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/82951413</link><guid>https://blog.youkuaiyun.com/user_q/article/details/82951413</guid><author>user_q</author><pubDate>Sat, 06 Oct 2018 15:48:39 +0800</pubDate><description><![CDATA[
&amp;lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&amp;gt;
&amp;lt;web-app xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
	xmlns=&quot;http://java.sun.com/xml/ns/javaee&quot;
	xsi:schemaLocation=&quot;http://java.sun.com/xml]]></description><category></category></item><item><title><![CDATA[Spring 项目中applicationContext.xml模板]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/82951445</link><guid>https://blog.youkuaiyun.com/user_q/article/details/82951445</guid><author>user_q</author><pubDate>Sat, 06 Oct 2018 15:48:30 +0800</pubDate><description><![CDATA[
&amp;lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&amp;gt;
&amp;lt;beans xmlns=&quot;http://www.springframework.org/schema/beans&quot;
	xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
	xmlns:context=&quot;http://www.springfra]]></description><category></category></item><item><title><![CDATA[log4j配置文件]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/82951464</link><guid>https://blog.youkuaiyun.com/user_q/article/details/82951464</guid><author>user_q</author><pubDate>Sat, 06 Oct 2018 15:48:18 +0800</pubDate><description><![CDATA[文件名   log4j.properties


log4j.rootLogger=debug,stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.err
log4j.appender.stdout.layout=org.apache.log4j.Patt...]]></description><category></category></item><item><title><![CDATA[SpringMVC前端控制器（*-servlet.xml）配置模板]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/82951529</link><guid>https://blog.youkuaiyun.com/user_q/article/details/82951529</guid><author>user_q</author><pubDate>Sat, 06 Oct 2018 15:48:09 +0800</pubDate><description><![CDATA[&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:jdbc="http://www.springframewo...]]></description><category></category></item><item><title><![CDATA[数据库表中id重新开始自增]]></title><link>https://blog.youkuaiyun.com/user_q/article/details/82951086</link><guid>https://blog.youkuaiyun.com/user_q/article/details/82951086</guid><author>user_q</author><pubDate>Sat, 06 Oct 2018 14:56:51 +0800</pubDate><description><![CDATA[（保留表结构，   清空表数据 ）谨慎使用


TRUNCATE TABLE 表名；

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