ioc of spring framework
1, Basic understanding of spring 1. Modules included in spring 2.spring family bucket spring struts Hibernate spring springmvc mybatis springboot SpringCloud 3. Technical level Security technology: Shiro, springSecurity Database level: hibernate/mybatis, SpringDataJpa Message Oriented MiddlewarUTF-8...
Posted by grglaz on Thu, 28 Oct 2021 17:39:59 +0530
day14 exception and object oriented
Exception capture 1. Exception - error If an exception is encountered during code execution, the program will interrupt execution (end ahead of time) 2. Catch exception The purpose of catching exceptions: when the program encounters exceptions, it can continue to execute When to catch exceptionUTF-8...
Posted by imtaqi on Thu, 28 Oct 2021 17:53:59 +0530
Wanzi blog teaches you to understand the date and time related usage of java source horse
introduce This article mainly introduces which date and time classes are provided in the java source code Two sets of API s for date and time java provides two sets of API s for processing date and time 1. The old API is placed under the java.util package: Date and Calendar are commonly used 2.UTF-8...
Posted by TheIceman5 on Thu, 28 Oct 2021 20:20:55 +0530
Go -- log Library
1, Introduction to standard library log The log package built in Go language implements a simple log service. 1. Using Logger The log package defines the Logger type, which provides some methods to format the output.The log package also provides a predefined "standard" logger, which can be useUTF-8...
Posted by Maniacility on Thu, 28 Oct 2021 20:47:47 +0530
@Exception handler annotation unified exception handling
1. Basic usage Spring's @ ExceptionHandler can be used to uniformly handle exceptions thrown by methods, such as: @ExceptionHandler() public String handleExeption2(Exception ex) { System.out.println("The throwing is abnormal:" + ex); ex.printStackTrace(); String resultStr = "Exceptions: defaultUTF-8...
Posted by west4me on Thu, 28 Oct 2021 20:54:29 +0530
day14 exception and object oriented
Exceptions and object orientation 1. Exception: error If an exception is encountered during code execution, the program will interrupt execution (end ahead of time) print('===========') # print('abc'[4]) print('-----------') print('+++++++++++') 1.1 catching exceptions The purpose of catching eUTF-8...
Posted by Gary Tactic on Thu, 28 Oct 2021 21:54:40 +0530
011 - Collection interface, one of the most important chapters in JAVA SE
Collection belongs to the top-level ports, which contains methods common to many sub interfaces Therefore, I mainly study the methods in the collection interface Add: add() addAll() Delete: remove() removeAll() Change: No, Check: contains(Object) containsAll(Object) other size() isEmpty() iteraUTF-8...
Posted by brent123456 on Thu, 28 Oct 2021 22:11:24 +0530
JUC concurrent programming learning notes (crazy God)
catalogue JUC concurrent programming 1. What is JUC2. Threads and processes 1) Process2) Thread3) Concurrent4) Parallel5) Status of the thread6)wait/sleep3.Lock 1) Traditional synchronized2)Lock3. The difference between synchronized and Lock4. Relationship between producers and consumers UTF-8...
Posted by [xNet]DrDre on Thu, 28 Oct 2021 23:31:24 +0530
Basic learning of python 5
This paper is the notes and corresponding practice application in the process of self-learning python ， I hope it can help you, and I also hope you can communicate and study together. If it is helpful to your study, remember to praise and pay attention. The Xiaobian will update an article everUTF-8...
Posted by evaoparah on Fri, 29 Oct 2021 01:26:59 +0530
Java foundation - Collection
aggregate summary Inheritance system Collection single column collectionMap two column set Collection interface summary The top-level interface of a single column Collection, which represents a set of objects, which are also called Collection elements JDK does not provide any direct implementatUTF-8...
Posted by PHPilliterate on Fri, 29 Oct 2021 10:38:08 +0530