喵丶布-优快云博客

原创 sql单表根据某个字段先选出最大值再去重

select * from 表 where id in (select max(id) from 表 group by 去重字段 )eg:select * from planthr_info where id in (select max(id) from planthr_info group by name)

2021-12-17 14:42:04 660

原创表单显隐控制

https://www.cnblogs.com/unknows/p/13045361.html

2021-12-15 10:26:38 226

原创 spring-framework-bom解决spring版本冲突

目前springframework升级版本跟普通的第三方组件略有不同，Spring不同模块或者与外部进行集成时，依赖处理就需要各自对应版本号。比如，较新spring与较老的quartz，它们集成就会遇到问题，给搭建和升级带来不便。因此Spring IO Platform应运而生，只要项目中引入了它，外部集成时依赖关系无需版本号。在pom.xml中properties标签中添加版本，dependencies节点下添加引用<spring_version>4.3.29.RELEASE</sp

2021-09-22 15:39:32 944

原创深入了解Excutor线程池

https://blog.youkuaiyun.com/qq_35029061/article/details/86716334?utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-1.essearch_pc_relevant&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%

2021-09-01 10:48:08 123

原创查看oracle server端字符集

Oracle 一个中文汉字占用几个字节，要根据Oracle中字符集编码决定查看oracle server端字符集select userenv(‘language’) from dual;如果显示SIMPLIFIED CHINESE_CHINA.ZHS16GBK，一个汉字占用两个字节;如果显示SIMPLIFIED CHINESE_CHINA.AL32UTF8，一个汉字占用三个字节....

2021-08-30 16:51:45 115

原创 stream流对象列表按需转string列表

List catalogidsList = catalogids.stream().map(AuditCatalog::getCatalogId).collect(Collectors.toList());

2021-08-26 15:50:45 870

原创 layui表单通过ajax请求获取的数据动态拼接成表格弹出并根据需求合并单元格

<!DOCTYPE html><html> <head> <meta charset="utf-8" /> <meta name="Descriptions" content="510100000000"> <meta name="renderer" content="webkit"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"&g

2021-08-09 10:15:27 1085

原创绕过https ssl证书

https://blog.youkuaiyun.com/irokay/article/details/78801307?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-5.base&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFrom

2021-07-08 15:19:10 477

原创 java从JSONObject中取值

https://blog.youkuaiyun.com/kxj19980524/article/details/83718971?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-5.base&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%

2021-06-17 12:28:13 404

原创 idea配置文件的导入导出

https://www.cnblogs.com/xy14/p/14165679.html

2021-06-11 10:12:08 191

原创 var的闭包原则

https://blog.youkuaiyun.com/xhf852963/article/details/79416440https://blog.youkuaiyun.com/hzrui/article/details/3941137

2021-04-09 20:41:45 218

原创 getBytes()字节码转换

https://blog.youkuaiyun.com/zbz0425/article/details/8221007?utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-1.control&dist_request_id=&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog

2021-04-09 15:14:27 264

原创 HTTP和HTTPS

https://blog.youkuaiyun.com/xiaoming100001/article/details/81109617?utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-1.control&dist_request_id=&depth_1-utm_source=distribute.pc_relevant_t0.none-t

2021-04-07 21:50:32 63

原创 webservice和api接口区别

https://www.cnblogs.com/leeego-123/p/10404631.html

2021-02-02 15:32:11 1415

原创 ad域用户导出导入

AD常用操作：[1]批量导入导出域用户ldifdehttps://jingyan.baidu.com/article/90808022a63db7fd91c80fbd.htmlAD常用操作：[2]批量更改域用户属性https://jingyan.baidu.com/article/fedf07377de83e35ac8977ab.htmlWindows Server 2016-批量设置用户下次登陆须更改密码Powershell设置某OU下所有用户下次登陆必须更改密码：Get-ADUser -Fi

2020-12-25 17:35:16 2228

原创 oracle递归查询

SELECT 数据字段FROM表CONNECT BY PRIOR 自身ID = 父级字段ID start WITH 自身ID = 'XXXXX'

2020-11-12 17:28:32 94

原创 ORACLE存储过程

https://blog.youkuaiyun.com/anhuidelinger/article/details/51147460?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2

2020-11-09 14:47:30 71

原创 linux更改jdk版本

https://blog.youkuaiyun.com/woainiqazwsx123/article/details/80356345

2020-08-07 15:39:30 249

原创 BPMN的规范标签使用配置

https://blog.youkuaiyun.com/weixin_34126215/article/details/92530336

2020-07-14 10:33:15 1047

转载字节内存缓冲区ByteArrayOutputStream

https://blog.youkuaiyun.com/u014049880/article/details/52329333?depth_1-utm_source=distribute.pc_relevant.none-task&utm_source=distribute.pc_relevant.none-task

2020-03-20 15:09:16 1428

原创高效流使用

FileInputStream inputStream = new FileInputStream("f://滑板//HEEL_FLIP.mp4"); BufferedInputStream bis = new BufferedInputStream(inputStream); FileOutputStream outputStream = new FileOutputSt...

2020-03-10 16:57:54 108

原创 Nginx多重代理获取用户真实ip

https://blog.youkuaiyun.com/java_chegnxuyuan/article/details/90246005

2020-03-07 16:32:33 533

转载函数去抖（debounce）& 函数节流（throttle）

https://blog.youkuaiyun.com/tedsz1025/article/details/80527416

2020-03-06 14:51:12 139

原创跨域请求解决

https://www.jianshu.com/p/d9e83fba73be

2020-03-04 11:24:16 100

原创 linux安装包忽视所有依赖强制安装

rpm -Uvh *.rpm --nodeps --force (忽略关联性、强制安装)

2020-01-13 15:48:11 2221

原创 PropertyPlaceholderConfigurer读取属性文件使用详解

https://blog.youkuaiyun.com/wrs120/article/details/84554366

2020-01-07 10:09:13 153

转载 iframe 原生js与jQuery 获取父窗、子窗的iframe（多个iframe，没有id没有name）

https://blog.youkuaiyun.com/qq_23064501/article/details/81736843

2019-11-13 11:32:51 359

转载 mysql存储过程在java中单个库的调用

https://blog.youkuaiyun.com/zuoyouzouzou/article/details/86692253

2019-11-09 11:01:30 80

原创 Idea插件下载慢

<?xml version="1.0" encoding="UTF-8"?><settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="h...

2019-10-25 17:26:50 1415

转载 Spring为什么推荐构造器注入

https://www.cnblogs.com/joemsu/p/7688307.html

2019-10-15 17:10:49 409

原创 getMethods和getDeclaredMethods区别

package com.westward;public class Car { private void bell(String time){ System.out.println("didi---"+time); } public void run(){ System.out.println("running"); }...

2019-10-14 14:46:58 136

原创主外键详解

https://www.cnblogs.com/wxl845235800/p/7406851.html

2019-09-11 10:56:22 401

原创 mybatis generator

https://www.cnblogs.com/handsomeye/p/6268513.html

2019-09-06 20:46:11 79

原创 SpringMvc静态资源过滤的两种方式

1.springmvc.xml中配置<mvc:default-servlet-handler /><mvc:resources location="/css/" mapping="/css/**"/><mvc:resources location="/imgs/" mapping="/imgs/**" />location表示所有以/css开头...

2019-09-06 09:21:21 533 1

原创解决中文乱码

response.setCharacterEncoding("UTF-8");resspinse.setContentType("text/html;charset=UTF-8");

2019-09-05 15:10:45 597

原创 data-toggle,data-target,data-dismiss

data-toggle指以什么事件触发，常用的如collapse,modal,popover,tooltips等；data-target指事件的目标，一起使用就是代表data-target所指的元素以data-toggle指定的形式显示。...

2019-09-03 23:29:02 3272

原创 bootstarp中jsp模板代码

<!DOCTYPE html><html lang="zh-CN"><head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"&gt...

2019-09-02 17:02:53 290

原创 jQuery下载

http://www.jq22.com/jquery-info122

2019-09-02 16:57:17 337

原创 Clammav配置记录

安装步骤参考如下很详细：https://blog.youkuaiyun.com/xpt211314/article/details/81201152安装完之后（重要）#配置环境变量：echo “export PATH=$PATH:/usr/local/clamav/sbin:/usr/local/clamav/bin” >/etc/profile.d/clamav.shsource /etc/pr...

2019-08-27 09:28:24 248

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