Programmer Group

Two systems of the company. Our A system should send A business contract application to B system. After receiving the data, system B will process it asynchronously and send A notice to our system A after signing. The interface document indicates that the asynchronous notification is sent through the post request of http protocol, and the me ...

AOP introduction AOP (aspect oriented programming) is called: aspect oriented programming, which is a kind of programming idea. AOP is the continuation of OOP (Object Oriented Programming) AOP adopts horizontal extraction mechanism to replace the traditional vertical inheritance system of repetitive code writing (such as performance monitori ...

Filter and servlet, the three elements of java web, are introduced respectively. Next, let's take a look at the related knowledge points of Listener. The main content of this blog is how to customize the Listener and register it to the spring container in the spring boot environment <!-- more --> I. environment configuration 1. Project co ...

This section describes how to quickly configure and send mail for spring boot project, including simple mail configuration, sending simple mail, sending HTML mail, sending mail with attachments, etc. The sample source code is: https://github.com/laolunsi/spring-boot-examples I. mailbox configuration To ensure that the client login service is e ...

Set: {}, variable data type. The elements in it must be immutable data type, unordered and not repeated. (unimportant)The writing of set set1 = set({1,2,3}) #set2 = {1,2,3,[2,3],{'name':'alex'}} #Wrong print(set1) #print(set2) set = {'alex','wusir','ritian','egon','barry'} add update set.add("goddess") print(set) set.add("abc") print(set) ...

Catalog 1. Integration ideas 2. Integrate the required jar package 3. Steps of integration 4. Two implementation methods of Dao development 6. Summary of Dao's development @ Mybatis integration of spring is actually the integration of SM in SSM framework. 1. Integration ideas The id ...

I. Introduction Let's take a look at the phenomenon. You can go first Here Download the code. A brief introduction to the inner class package com.iceberg.springboot.web; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication //@ComponentScan("com.iceberg.s ...

poi-tl It is a very easy to use word template generation library, with fast update response and complete document demo. Can be called the word template world's small Sabre! Written in front If you are familiar with or interested in word template technology, or even have been exposed to it at work, then the next content should give you somethi ...

[TOC] 1. Get to know Hystrix Hystrix is a delay and fault-tolerant library, which aims to isolate remote systems, services and third-party libraries, organize cascading failures, and realize recovery capability in distributed systems with load. In the case of multiple systems and microservices, a mechanism is needed to deal with delays and fail ...

Preface If this is the second time you see the teacher, you are coveting my beauty! Like + pay attention again, form habit It doesn't mean anything else. It just needs your camera screen^_^ This series of articles At present, it's the fourth part of the series. This topic is to explain the spring boot source code in depth. After all, it's sourc ...