Fluent MyBatis的特点是什么?

Fluent MyBatis的特点是什么? 采纳答案1: 便利的IDE语法提示

2022-05-14 | 阿里云问答 | 163浏览

MyBatis Dynamic SQL在实现方法上的特点?

MyBatis Dynamic SQL在实现方法上的特点? 采纳答案1: 不再生成XML映射文件,不需要支持'by example'能力,大量启用MyBatis3的注解,结合现代编码风格,总体代码量比传统运行时生成的代码小很多,也简单很多。 使用它生成的高级条件查询灵活性较大,并支持分页、join、union、group by、order by等语句,支持通过任意and/or及嵌套的条件组合构建复杂的where条件查询。

2022-05-14 | 阿里云问答 | 436浏览

Netty IO服务模块的核心是什么?

Netty IO服务模块的核心是什么? 采纳答案1: 1、Channel接口 2、EventLoop接口 3、ChannelFuture接口 4、ChannelHandler和ChannelPipeline

2022-05-14 | 阿里云问答 | 942浏览

Zookeeper节点分为哪几种类型?

Zookeeper节点分为哪几种类型? 采纳答案1: ZooKeeper服务端支持7种节点类型分别是:持久、持久顺序、临时、临时顺序、容器、持久 TTL、持久顺序TTL。

2022-05-14 | 阿里云问答 | 547浏览

178.-linux目录管理命令-ls&pwd&cd__

reboot 立即重启 sudo set ntp true 打开时间同步 clear 清屏 ls 显示不隐藏的文件文件夹 ls l 显示详细信息 ls al显示所有文件 ls a 显示隐藏文件 https://img blog.csdnimg.cn/033bdca4260141ab828e52b1d26706ab.png pwd 我在那个目录 cd home 切换到home目录 cd .. 退到上级目录

2022-05-14 | qq_31426093 | 719浏览

【数据结构 课程设计】 ----------- 教室数据管理

文章目录 一、设计任务及要求 10 二、设计导向 18 (一)设计目的 20 (二)总体设计方案 28 1. 总体思路 1 30 2. 详细设计 2 38 3. 系统测试与结果分析 3 49 三、课程设计总结 58 四、附录:源程序清单 72 一、设计任务及要求 开发C语言程序,实现增加数据、删除数查询数据、统计数据以及排序输出等基本的数据管理功能。 1. 使用子函数实现各项具体功能 1. 在主函数中制作菜单中的选项来运行以上的功能。(例如可以设定菜单:1为录入,2为修改,3为删除,4为计算,...

2022-05-14 | 比特冬哥 | 154浏览

178. - Linux directory management command - LS & PWD & CD__

reboot Restart immediately sudo set ntp true Turn on time synchronization clear Clear the screen ls Show files and folders that are not hidden ls l Show details ls al Display all files ls a Show hidden files https://img blog.csdnimg.cn/0...

2022-05-14 | qq_ thirty-one million four hundred and twenty-six thousand and | 257浏览

179. Linux directory management command MKDIR & rmdir & RM__

mkdir Create folder mkdir p bbb/aaa Create multi-level directory rmdir aaa Delete empty folder rmdir p bbb/ccc Delete multi-level directory rm Delete files and directories touch a.txt create a file rm r aaa Delete directory  rm a.txt  De...

2022-05-14 | qq_ thirty-one million four hundred and twenty-six thousand and | 708浏览

177. Linux command

su root Switch to root useradd user1 Create user userdel aaa Delete user groupad kaifa add group groupmod n kaifazu kaifa Modify group name groupdel kaifazu Delete the group gpasswd a user3 kaifazu Add users to groups grep 'kaifazu' /etc...

2022-05-14 | qq_ thirty-one million four hundred and twenty-six thousand and | 742浏览

182. Linux change master and group - chgrp & chown_

chgrp root aaa Switch user groups chgrp v hqg aaa Change back to user group chown root aaa Change owner chown root:root aaa Change owner and group  chown root:root aaa  Changes include the owner and group of all files in the folder

2022-05-14 | qq_ thirty-one million four hundred and twenty-six thousand and | 842浏览

180. Linux directory management command CP & MV__

cp aaa/a.txt ccc Copy files cp r aaa// ccc Copy files, including directories mv aaa// ccc Move files and directories to ccc mv ccc/a.txt aaa Move files to aaa https://img blog.csdnimg.cn/5751f4b75ad54940af2eb1b2ab22236b.png

2022-05-14 | qq_ thirty-one million four hundred and twenty-six thousand and | 709浏览

181. Basic properties of Linux file__

https://img blog.csdnimg.cn/1d4c36203af048b28731dd0fe49593a9.png   https://img blog.csdnimg.cn/57409e76012d4764b56bd04710f0e90b.png  

2022-05-14 | qq_ thirty-one million four hundred and twenty-six thousand and | 377浏览

Python爬虫-爬取图片并且存储到MySQL数据库中

一、获取网址,解析网址 https://img blog.csdnimg.cn/c6a696252aa54310b9de9f72df8fb6b8.png?x oss process=image/watermark,type d3F5LXplbmhlaQ,shadow 50,text Q1NETiBA5bid5Zu95ZC 54ix,size 20,color FFFFFF,t 70,g se,x 16 (1)、for循环获取不同页的数据 https://img blog.csdnimg.cn/...

2022-05-14 | 帝国吾爱 | 100浏览

JavaScript 编写猜拳游戏

 HTML代码: DOCTYPE html html lang='en' head meta charset='UTF 8' title JS /title script rel='script' src='js1.js' /script style / Div { width: 1000px; height: 700px; position: relative; border style: groove; border width: 2px; } // 猜拳区/ / / area { widt...

2022-05-14 | 帝国吾爱 | 841浏览

大数据 ----- 在Xshell6 安装Hadoop与JDK以及环境变量

一. 安装JDK以及环境变量 1.进入Xshell6,连接虚拟机,把普通用户改成root用户  https://img blog.csdnimg.cn/20190217192523528.png 2.cd到根目录,然后再cd到usr/local文件夹中 3.创建app文件夹  https://img blog.csdnimg.cn/20190217192633107.png 4.进入app文件夹,安装一个rz上传文件组件 yum y install lrzsz   和  安装vim编辑器 yu...

2022-05-14 | 帝国吾爱 | 355浏览

Django 通过 admin 操作 MySQL数据库 ,审核功能加储存记录

1.创建MySQL数据库 moderate 表 和 moderate log(储存记录) 表 https://img blog.csdnimg.cn/20190121095718738.png?x oss process=image/watermark,type ZmFuZ3poZW5naGVpdGk,shadow 10,text aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5NjUyNjI4,size 16,color FFFFFF,t 70 https://img ...

2022-05-14 | 帝国吾爱 | 928浏览

运行Django找不到Windows“http://127.0.0.1:8000/”的问题

这个好像是系统的问题,不是软件的问题,好像是杀毒软件删了一些文件。  https://img blog.csdnimg.cn/2018122811555111.png?x oss process=image/watermark,type ZmFuZ3poZW5naGVpdGk,shadow 10,text aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM5NjUyNjI4,size 16,color FFFFFF,t 70 Django没有错误,可以在网站直接输入网址。  ...

2022-05-14 | 帝国吾爱 | 519浏览

Docker installation Seata server

Catalog 1. Get profile catalog01 2. install MySQL catalog02 3. Create database , And implement sql Script catalog03 4. start-up nacos, And add namespace catalog04 5. modify seata server The configuration file catalog05 6. Set up nacos Co...

2022-05-14 | Yes ZG! | 278浏览

MySQL stored procedures from mastery to entry

0. Environmental statement : mysql edition :5.7 1. Instructions ​ Stored procedure is an important object of database , Can be encapsulated SQL Statements set , It can be used to complete some more complex business logic , And you can input and ou...

2022-05-14 | Help me to the Internet cafe | 351浏览

Detailed explanation of redis's approximate LRU algorithm

stay 《 Redis What if the data cache is full ? gCvbJ2S2DT31XMzzQ 'Redis What if the data cache is full ?' 》 We know Redis After the cache is full, the data can be deleted through the elimination strategy to make room for new data . The elimina...

2022-05-14 | Help me to the Internet cafe | 539浏览