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Use @ ControllerAdvice and @ ExceptionHandler to handle global exceptions @ExceptionHandler handles Controller level exceptions ResponseStatusException Through this article, you can understand how to handle exceptions in Spring Boot. However, just being able to use it is not enough. We have to think ab ...

In our daily life, the responsibility chain mode is quite common. We usually work to handle some affairs, often all departments cooperate to complete a project task. Each department has its own responsibilities, so many times when a part of the work has been completed, it will be handed over to the next department, until all the departments hav ...

Archetypal model Basic introduction Prototype mode refers to: using prototype instances to specify the type of objects to be created, and copying these prototypes to create new objects. Prototype pattern is a kind of creative design pattern, which allows one object to create another customizable ob ...

1. Steps of building parent project based on IDEA New maven project 2. Name of aggregation parent project Maven selected version Character encoding settings Annotation effective activation Java version selection 8 File Type filtering 2.pom file description 1.pom Document conten ...

1. Controller implementation of spring MVC Spring MVC implements Controller mainly in the way of Controller implementation and full annotation implementation, among which full annotation implementation is a common way in current projects. 1.1. Controller implementation mode 1.1.1. Implement Controller interface Create a class to implement the C ...

Explain (1) JDK version: 1.8 (2)Spring Boot 2.0.6 (3)Spring Security 5.0.9 (4)Spring Data JPA 2.0.11.RELEASE (5)hibernate5.2.17.Final (6)hsqldb2.4.1   1, Identity authentication and role authorization based on memory database 1.1 add dependency Add the dependency of SpringData JPA and hsqld ...

Preface Recently, due to the needs of the project, the project needs to realize the function of websh connecting the terminal. Because of the first time to do this type of function, I first went to GitHub to find out if there is any ready-made wheel that can be used directly. At that time, I saw many projects in this area, such as GateOne, webs ...

Prerequisite preparation: JDK8+ IDEA Maven Download the source code: Visit the official website of spring.io, then go to Projects, click the kitten in the upper right corner, and download the Spring source code from Github! Choose a RELEASE version, I choose the RELEASE version of 5.2, choose ...

Original address: http://www.work100.net/training/monolithic-architecture-design-patterns-template-pattern.htmlMore tutorials: Beam cloud - free course Template mode Serial number Chapter in text video 1 Summary - 2 Realization - Please refer to the navigation above for reading 1. overview In Template Pattern, an abstract class expos ...

How to use redis to generate serial number Summary Principle introduction Flow chart 1. Initializing serial number information into cache 2. Generate serial number code implementation 1. Serial number entity class 2. Initialize serial number into cache 3. Generate serial number Code testing Gene ...