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At the beginning of using the spring boot development project, the Spring Data JPA used by the ORM framework was only used intermittently for more than a year, without making some summary. Taking advantage of the current serious epidemic situation and little work, I will take a note and record the gener ...

You've been watching java concurrently and you've been saying a bit too much. Just relax!This time, let's briefly talk about jdk8, which has not been used for a long time and is new to us. It's interesting to look at it carefully. Let's turn our brain into an angle to write code. Because we usually write code in jdk7 now, we are all thinking ab ...

This article is and is included in the springboot-guide (not just SpringBoot but also Spring Key Knowledge Points), address: https://github.com/Snailclimb/springboot-guide .Make it easier for you to learn Spring!If you feel good, welcome to a Star! Many times we need to put some commonly used configuration information such as Aliyun oss confi ...

Anemia model We generally use three-tier architecture for business development: Repository + Entity Service + BO(Business Object) Controller + VO(View Object) In the three-tier architecture business development, we often use the development mode based on the anemia model. Anemia model refers to th ...

1 Leader Say nothing but read the manual guidelines first The manual has helped us summarize common problem scenarios, but we still need to dig into the null pointer problem in order to get it right. 2 What is the null pointer in the world? 2.1 Official Resolution A null is passed in when the app ...

(1) : you must first open related services on alicloud OSS. For details, please refer to this link: https://help.aliyun.com/document_detail/31883.html?spm=5176.10695662.1996646101.searchclickresult.5ceb3ee82NzMq7&aly_as=WhUj5kPK Or for video address, please refer to this link: http://cloud.video.tao ...

In SpringBoot, there are two different formats for configuration files, one is properties and the other is yaml. Although properties files are common, yaml is more concise and uses more scenarios than properties, and many open source projects are configured using yaml (for example, Hexo).In addition ...

Article directory 1. beauties 2. overview 3. cases 3.1 case 1 4. Container initialization 5.AnnotationConfigApplicationContext 5.1 registerBean 5.1.1 class file registration 5.1.2 AnnotationBeanDefinitionReader#doRegisterBean 5.2 scanBean mode 5.2.1 ClassPathBeanDefinitionScanner#doScan 1. b ...

[eye] 1. A way to start Spring BootService startup class package com.npc.rest; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ImportResource; /** * Frozen * 2020-1-29 */ /** * Previously, users used three annotations to ...

Note: here are some records of learning, I am not doing software development. Like here, we need to integrate springboot+spring+mybatis. We are still learning.   1, lombok configuration (1) Plug in download lombok offline download address: https://plugins.jetbrains.com/plugin/6317-lombok/versions ...