UnavailableSecurityManagerException in Spring Boot integration shiro
Spring boot uses spring security by default. Spring security is a powerful security framework, needless to say. However, if you are used to shiro, you will not use spring security for a while, so you need to integrate shiro in spring boot. When it comes to integrating shiro, there are many online tutorials, but online tutorials are not necessar ...
Posted on Sun, 21 Jun 2020 02:28:31 -0400 by jollyjumper
Using SpringCloud Stream and rabbitMQ to implement message consumption failure retransmission mechanism
In the actual project, the message consumption often fails, so it is necessary to resend the message. For example, after the failure of payment message consumption, N times of message retransmission reminder should be performed in different time periods.
This paper simulates the scene
Message consumption succeeds when the amount is less than ...
Posted on Sun, 21 Jun 2020 00:29:09 -0400 by garfield213
Spring Boot's "hello world" program
Environmental Science
Operating system: Ubuntu 20.04
Development tool: IntelliJ IDEA 2020.1.2 (Community Edition)
JDK:
➜ ~ java -version
openjdk version "14.0.1" 2020-04-14
OpenJDK Runtime Environment (build 14.0.1+7-Ubuntu-1ubuntu1)
OpenJDK 64-Bit Server VM (build 14.0.1+7-Ubuntu-1ubuntu1, mixed ...
Posted on Sat, 20 Jun 2020 23:58:02 -0400 by keegan
Spring Boot multi module development and pit drainage guide none in history
Recommended reading: How to improve the core competitiveness of Java engineers who have worked for 1-5 years
Ali architect said: "no real combat is just talking on paper"! Redis live PDF sharing
Working hard for more than half a year, Ali finally got hi ...
Posted on Sat, 20 Jun 2020 04:52:25 -0400 by canadian_angel
Day 3: HBase API
API call
More commonly used in the work is to call and implement operations similar to HBase shell through HBase API.
Environmental preparation
IDEA + Maven + HBase
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.or ...
Posted on Sat, 20 Jun 2020 03:37:46 -0400 by Ting
Using Flink Metric Reporter to monitor flink task indicators
Since flink1.8, the reporter supports writing index data to influxdb, and users can read the data in influxdb for visualization.
But for small and medium-sized companies, most of them don't choose self-developed visualization because of the cost. We choose grafana for the visualization of flick metrics. ...
Posted on Sat, 20 Jun 2020 01:41:30 -0400 by lurius
Java+Maven+TestNG interface (API) automation test tutorial
In the previous chapter, we wrote the first test class of get request. In this chapter, we will preliminarily optimize and encapsulate it.
6.1 separate request sending class
First of all, our interface automation testing framework will use a lot of http request sending functions in the future.
T ...
Posted on Sat, 20 Jun 2020 01:35:22 -0400 by helloise
Introduction to CAT minimalism (application monitoring platform)
1. Overview
Lazy tips: CAT official documents - simplicity It's been written very well. Here's a great way to use direct CV~
CAT(Central Application Tracking) It is a real-time application monitoring platform developed based on Java, which provides a comprehensive real-time monitoring and alarm ...
Posted on Sat, 20 Jun 2020 00:40:37 -0400 by callmubashar
How to convert Log4j to logback without Log4j
Custom Catalog title is written here
Fix the vulnerability, remove Log4j and introduce logback
1 background
2 difficulties
3 Introduction to components
3.1 code structure
3.2 description of key categories
3.2.1 ClassOfCallerConverter.java
3.2.2 MethodOfCallerConverter.java
3.2.3 LineOfCallerConver ...
Posted on Fri, 19 Jun 2020 04:32:09 -0400 by mhewall
What is the Watcher mechanism in Zookeeper?
Article catalog
What is the watcher mechanism
Notification state (KeeperState)
Event type
Client implementation of EventType registration and notification
Server implementation of EventType registration and notification
EventType registration and notification process
Simple code example
What i ...
Posted on Thu, 18 Jun 2020 07:06:48 -0400 by paudelvikash