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SpringBoot learning notes SpringBoot: integrating JDBC preface This article is to follow the crazy teacher to learn the learning notes of springBoot, which is used to review and consolidate and facilitate review and sorting. 1, Integrate JDBC The bottom layer of Spring Boot uses the way of Spring Data to uniformly process various ...

Write in front I lost sleep again last night. I didn't sleep until 4:30. I also had two bad dreams. I woke up at 8:30. I feel so tired. I really want to get drunk. I can't. I'm afraid of drunk driving, ha ha ha. There are still many things to do this year. You must take action. Just try your best. The rest depends on the will of God. Task Disa ...

1. Use of springboot cache a.pom introduce jar spring-boot-starter-cache b.Add annotation to startup class@EnableCaching c.Add annotations to the methods that need to be cached @Cacheable(cacheNames = "com:xxx",key = "''+#id") Figure 1 2. Implementation principle of cacheable What is the implementation principle? The first reaction ...

Part I: 03---Spring function test (Part I) catalogue 1. loc write configuration file to develop spring config xml 2.loc annotation development 3. Simulate the underlying principle of spring IOC ---1. Create bean; Class, record the class name and the full path of the class ---2. Create MyIOC class ---- > to simulate your own IOC 1. Tel ...

How to solve the Chinese garbled code transmitted by springboot parameters preface This case comes from a business scenario of a business department. Their business scenario is that their department has developed a microservice context transparent component, and its transparent principle is also very simple. That is, the request parameters ar ...

The whole process of class loading and runningpackage com.tuling.jvm; public class Math { public static final int initData = 666; public static User user = new User(); public int compute() { //A method corresponds to a stack frame memory area int a = 1; int b = 2; int c = (a + b) * 10; return c; ...

Simple understanding of SpringBoot distributed system Next, after understanding the basic concept of distributed system and setting up the environment, use a simple example to experience distributed services. 1. Environmental construction Create an empty new project and name it SpringBoot-09-DS. Create a provider server module of the SpringBoot ...

1. TCC of distributed transaction solution 1.1 what is a TCC transaction TCC is the abbreviation of try, Confirm and Cancel. TCC requires each branch transaction to implement three operations: preprocess try, Confirm and Cancel. Try performs business check and resource reservation, Confirm performs business confirmation, and Cancel imp ...

@[TOC]SpringBoot learning (I) -- create a SpringBoot project through an empty project IDEA creating an introductory project I create an empty project, and then create multiple modules in it. In this way, multiple projects only open one window Creation method Mode 1 ① If you have opened a project in the IDEA, you need to enter the project cr ...

preface In spring IOC, the well-known BeanScope includes singleton and prototype. The scope of the Bean affects the creation method of the Bean. For example, when creating a Bean with Scope=singleton, the IOC will save the instance in a Map to ensure that the Bean has only one instance in an IOC context. Spring cloud adds a scope of refresh ra ...