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Many times we need to put some commonly used configuration information such as Aliyun oss confi ...
Posted by vincent30000 on Sat, 08 Feb 2020 19:56:20 -0800
If we want to configure monitoring for tasks, it's the normal way
One by one configuration, it's more troublesome.
Now use ActivitiEventListener to listen to global events, judge different event types, and then execute different business logic.
1. Define event handler interface
Using interfaces to define uniform conventions
public interface Eve ...
Posted by rd2010 on Sat, 08 Feb 2020 06:07:21 -0800
The definition of a Class consists of two parts: the declaration of the class and the body immediately following the declaration.The main part is enclosed by a pair of braces and ends with a semicolon.Two keywords within the principal, public and private, are used to denote "member access" for each block.Public member s c ...
Posted by Neoraven456 on Fri, 07 Feb 2020 19:44:53 -0800
From Here https://www.jianshu.com/p/1ef5cd97ba2b
What is Zipkin
Zipkin is an open source distributed real-time data tracking system, designed based on a paper by Google Dapper and developed by Twitter.Its main function is to aggregate real-time monitoring data from heterogeneous systems.Distri ...
Posted by agriz on Fri, 07 Feb 2020 17:46:32 -0800
1. spring security is for permission authentication.
2. Database based authentication is used in all projects.
First, we create a permission related table.
General authority controls include
user → role → data_privilege
Users control through role. Data permission is ...
Posted by sunilj20 on Fri, 07 Feb 2020 09:48:06 -0800
1. Create a new Spring Boot project
The specific steps are as follows
Select the appropriate dependency:
Under src/main/resources of the spring boot project, the application.properties file exists by default. This is the configuration file of the spring boot project. Almost all related configurations ...
Posted by dennissanche on Fri, 07 Feb 2020 05:21:37 -0800
1. Configuration related
Abstract class encapsulating authentication logic for Http pages
ApplyPasswordAuthentication Config sets the default form login authorization authentication route for HttpSecurity, and imoocAuthentication SuccessHandler, imoocAuthentication ...
Posted by TheSeeker on Thu, 06 Feb 2020 21:11:52 -0800
1, Ask questions
When spring MVC encapsulates custom type objects, JavaBean s are bound to the data submitted by the page one by one. Here's what you need to know:
1) all data submitted by the page are strings
2) attributes in JavaBean s, such as Integer age;
When binding data, the following oper ...
Posted by saeed42 on Wed, 05 Feb 2020 22:31:22 -0800
MongoDB pipeline definition
The aggregation pipeline of MongoDB will pass the results of MongoDB documents to the next pipeline after one pipeline is processed. Pipeline operations are repeatable.
Common Aggregate pipeline operators of Aggregate in SpringBoot
Customize the collection userCollection and initialize the data structure
Store bean u ...
Posted by adnan856 on Wed, 05 Feb 2020 07:50:14 -0800
1, Basic knowledge
Message producer is the procedure of message delivery.
Message consumers are message receiving programs
(3) Messaging when message queuing is not used
(4) Message passing method after using message queue
(5) What is message queuing
A queue is like a warehouse ...
Posted by corporateboy on Wed, 05 Feb 2020 05:46:48 -0800