Lesson
lesson1第一个窗口
来自B站的视频学习 package com.ages.lesson1; import java.awt.*; //GUI the first HMI public class TestFrame { public static void main(String[] args) { //Frame,J ......
Java多线程-Lesson02
一.Lamda表达式 λ是希腊字母表的第十一位字母,英文名是Lambda Lamda表达式的出现主要是为了避免匿名内部类过多的原因,它属于函数式编程的范畴 为什么要使用Lamda表达式? 避免匿名内部类定义过多 可以让你的代码看起来很简洁 去掉了没有意义的代码,只留下一堆核心逻辑 主要使用在创建的类 ......
Java多线程-Lesson01-线程的创建
线程创建的三种方式 继承Thread类 步骤: 继承Thread类 重写run()方法 调用start()开启线程 重写run()方法: @Override public void run() { for (int i = 0; i < 200; i++) { System.out.println( ......
【Oracle impdp/expdp】Big lesson from failure with impdp/expdp in 12c
最近忙于做数据库12c-19c迁移,基于公司的情况,选用了最拿手的expdp/impdp oracle自带的王者级别工具进行迁移。 按照常规思路,一顿操作猛如虎,expdp 直接选用full=y将数据全库导出,然后在19c中导入,无论是12c中的导出还是19c中的导入数据,没有任何的错误, 然而在无 ......
Three.js#03#Three.js Fundamentals starting lesson(笔记)
Three.js Fundamentals starting lesson 基础 注意,在图中,相机一半在镜头外,一半在镜头内。这是为了表示,在three.js中,与其他对象不同,相机不必在场景中发挥作用。就像其他对象一样,Camera作为其他对象的子对象,将相对于其父对象移动和定向。在关于场景的文 ......
S2 - Lesson 54 - Sticky fingers
Content Sticky fingers After breakfast, I sent the children to school and then I went to the shops. It was still early when I returned home. The child ......
S2 - Lesson 52 - Hot snake
Content Hot snake At last firemen have put out a big forest fire in California. Since the, they have been trying to find out how the fire began. Fores ......
S2 - Lesson 52 - A pretty carpet
Content A pretty carpet We have just moved into a new house and I have been working hard all morning. I have been trying to get my new room in order. ......
S2 - Lesson 51 - Reward for virtual
Content Reward for virtual My friend, Hugh, has always been fat, but things got so bad recently that he decided to go on a diet. He began his diet a w ......
SpringMVC-lesson08-json-3-2023-03-24
阿里巴巴开发的JSON <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.60</version> </dependency> @RequestMapping( "/j ......
SpringMVC-lesson08-json-2-2023-03-24
公共类 package com.feijian.utils; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; import c ......
SpringMVC-lesson08-json-2023-03-24
1\JSON复习 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <script type="text/javascript"> var user ={ name:"飞剑", ag ......
SpringMVC-lesson07-乱码问题-2023-03-24
一、TOMCAT CONFIG文件配置: <Connector port="8080" protocol="HTTP/1.1"connectionTimeout="20000"redirectPort="8443" URIEncoding="UTF-8"/> 二、springmvc自带过滤配置 <! ......
SpringMVC-lesson06-controller深入-2023-03-24
@Controller @RequestMapping("/user") public class UserController { @GetMapping("/t1") //一般都加上@ReuestParam,避免前端传递的参数名字和后端不一致 public String test1(@Reque ......
SpringMVC-lesson05-controller&Restful风格-2023-03-22
第一种:实现接口Controller定义控制器是比较老的办法 缺点:一个控制器只有一个方法,如果有多个方法需要定义多个controller,定义方式比较麻烦 第二种:使用注解 @Controller 视图可以被复用 几种常用的注解 @Component 组件 @Service service @Co ......
S2 - Lesson 50 - Taken for a ride
Content Taken for a ride I love travelling in the country, but I don't like losing my way. I went on an excursion recently, but my trip took me longer ......
SpringMVC-lesson04-hellospringmvc-注解开发-2023-03-22
真实开发-注解开发 1、 <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-in ......
SpringMVC-lesson03-hellospringmvc-原理图分析-2023-03-22
图为SpringMVC的一个较完整的流程图,实线表示SpringMVC框架提供的技术,不需要开发者实现,虚线表示需要开发者实现。 简要分析执行流程 1\DispatcherServlet表示前置控制器,是整个SpringMVC的控制中心。用户发出请求,DispatcherServlet接收请求并拦截 ......
SpringMVC-lesson02-hellospringmvc-2023-03-21
参考网页:https://www.kuangstudy.com/bbs/1618521039124783105 第1步:注册web.xml,注册DispatcherServlet <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http: ......