Maven Optional Dependencies and Dependency Exclusions

... We know that maven dependencies are transitive. Such as: A-->B, B-->C. But sometimes, Project A may not necessarily rely on C, so you need to exclude dependency on A in Project A. In maven's dependency management, there are two ways to implement dependencies: Optional Dependencies...


The full stack engineers write at the front and back ends, and work for almost three years. But recently I realized that my Java

... Upward to learn memcache, redis, elasticsearch, mongodb, cassandra, activemq, tuscany, learn their internal implementation. Downward learning computer composition principle, computer operating system, computer network, database, data structure, algorithm, jdk underlying implementation...


Xidiantongyuan is learning java by itself. I don’t know what level I can learn to work, and I don’t have a direction.

... 工作 is the project. Usually you will be responsible for a small module. So the level of normal work should be like this 1. Setting up the environment including IDE, checkout source, local database or service, host configuration, maven configuration or other company's environment. So you...


Introduction to Geographic Information System - Lecture 1 - Section 1

... ** The first section of the concept of geographic information system: ** 1) Information and geographic information: ▲ 信息 : Use text, Media such as numbers, symbols, languages, and images represent the contents of events, things, and phenomena, and are reflections of the characteristics...


Mongodb installation tutorial

... Download install 1. Feel free to create your favorite path, E:\mongodb 2. Unzip the downloaded zip file under E:\mongodb Then create a new data folder E:\mongodb\data under E:\mongodb 3. Then create two folders, db and log respectively. At this point, there are the following folders...


Navicate link mysql database error: 2059

... Checked online, this reason is mysql8 before the encryption rule is mysql_native_password, and after mysql8, the encryption rule is caching_sha2_password, the solution here is to log in the mysql user The password encryption rule is restored to mysql_native_password. code as follows,...


Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated c

... [Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'information_schema.PROFILING.SEQ' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by win10 When installing...


unixODBC data source configuration + Python custom class connection Informix database

... Python custom class connection database use the data source of the unixODBC configuration, customize a class and then connect to the database import pyodbc Class DB18: Def __init__(self): Self.conn = self.open() If self.conn: Self.cr = self.conn.cursor() Def open(self): Try: Cnxn=pyodbc...


[IIS] Application pool automatic recycling problem

... IIS can set the automatic recycling time, the default recycling is 1740 minutes, which is 29 hours. IIS automatic recovery is equivalent to server IIS restart, application pool memory is cleared, all data is cleared, equivalent to IIS restart, in the measurement rapid development...


How do companies use the cloud platform for asset management?

... As best practices frameworks such as ITIL are widely used in IT service quality control systems, asset management has become a key component in supporting IT operations. At the same time, the adjustment of IT architecture has brought a new round of benefits to asset management. After...