Ubuntu 20.04 installing MySQL and configuring MySQL workbench
preface Recently, when learning Lin Ziyu's big data, I found that installing Hive for Hadoop requires using MySQL databa...
Chapter III Management and optimization of Apache
1. Role of Apache: http: / / is usually used when the web is accessedhttp:// ## Hyper Text Transfer Protocol http:...
nginx website service
I. Overview Nginx is a high performance HTTP and reverse proxy server 1. Advantages and disadvantages: (1) The advantage...
Build Lamp environment for Ubuntu (Linux+apache+mysql+php)
Test environment:
System: Youqilin 20.04 Network: 127.0.0...
freemarker tag usage and configuration
After some time of research, freemarker really works better than jsp, and freemarker strictly divides the mvc pattern.Sh...
freemarker tag usage and configuration
After some time of research, freemarker really works better than jsp, and freemarker strictly divides the mvc pattern.Sh...
freemarker tag usage and configuration
After some time of research, freemarker really works better than jsp, and freemarker strictly divides the mvc pattern.Sh...
Deploying multiple projects under Tomcat
Multiple project deployments with the same port number
Ad...
Deploying multiple projects under Tomcat
Multiple project deployments with the same port number
Ad...
commons-lang3 tool class learning (2)
From http://commons.apache.org/proper/commons-lang/javadocs/api-release/org/apache/commons/lang3/ Official documents to ...
Java Server-side CORS Cross-Domain Configuration
Now the web program architecture tends to be more and more front-end and back-end separated, the benefits of front-end a...
Using @ controlleradvce and ErrorController interfaces in springMvc
Using @ controlleradvce and ErrorController interfaces in springMvc 1, Introduction
...
Spring cloud Part 3: service provision and Feign call
In the previous article, we introduced the construction of the registration center, including that of the cluster enviro...
AJAX_ Introduction & classic cases
AJAX_ Introduction & classic cases Getting started with AJAX AJAX introduction AJAX(Asynchronous JavaScript And...
UnavailableSecurityManagerException in Spring Boot integration shiro
Spring boot uses spring security by default. Spring security is a powerful security framework, needless to say. However,...
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 archit...
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 visual...
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 direc...
What is the Watcher mechanism in Zookeeper?
Article catalog What is the watcher mechanism Notification state (KeeperState) Event type Client implementation of Eve...
Create a yum warehouse and logical disk partition
1. Build your own yum warehouse, which is network source and local source respectively.Network Source:1. First create a ...
Spark streaming reads the database data extracted from Flume by Kafka and saves it in HBase. Hive maps HBase for query
Recently, the company is working on real-time flow processing. The specific requirements are: real-time import of releva...
Spring cloud: service provision and Feign call
In this article, there are three roles: service provider, service consumer, and the protagonist of the previous article,...
Flink Sql on Zeppelin -- environment preparation
Environmental preparation summary Why Sql At present, there are many ways to develop Flink. Generally speaking, stud...
Summary of Java Concurrent Programming Practice
premise
First, the scene is a hotel-based bus...
Configure different access ports for multiple applications in tomcat
Configure different access ports for multiple applications in tomcat
...
How to use Apache Flink to query Pulsar flow
In the previous blog, we introduced Apache Pulsar and its differences from other message systems, and explained how to i...
The running in period of Flink and Hive
There is a lot of feedback from readers. Please refer to the previous article< Hive is finally waiting, Flink >Whe...
Configuring Maven skills in Eclipse
Configuring Maven in Eclipse Specify the path to configure and install maven Mavan local warehouse with Eclipse: Instea...
Chapter 2 starts with spring boot and spring cloud
Article catalog preface: 1. Parent directory 2.FW-BOOT 3.FW-ClOUD 4.FW-CORE 4.1.core-web 1.WebMvcConfigurer Configura...