Skip to main content

Liệt kê ổ đĩa hệ thống trong Java

Để liệt kê các ổ đĩa hệ thống (partition) trong Java ta dùng phương thức tĩnh listRoots() của lớp File.

File[] roots = File.listRoots();

for (int index = 0; index < roots.length; index++) 
{ 
     //Print out each drive/partition  
     System.out.println(roots[index].toString());  
}

Comments

Popular posts from this blog

How to Install SQL Server on MacOS with docker

 I'm writing a small tut for who need to install SQL Server on macOS using docker Step 1: Download the SQL Server Image sudo docker pull mcr.microsoft.com/mssql/server:2019-latest Step 2: Launch the SQL Server Image in Docker docker run -d --name example_sql_server -e 'ACCEPT_EULA=Y' -e 'SA_PASSWORD=Pass.word-123' -p 1433:1433 mcr.microsoft.com/mssql/server:2019-latest Step 3: Check the SQL Server Docker Container docker ps -a Step 4: Install SQL Server Command-Line Tool sudo npm install -g sql-cli Step 5: Connect to SQL Server  5.1 Using Command mssql -u sa -p Pass.word-123 5.2: Using VSCode to connect to sql server Using the extension SQL Server (mssql)

What is API Gateway?

  What does API gateway do? The diagram below shows the detail. Step 1 - The client sends an HTTP request to the API gateway. Step 2 - The API gateway parses and validates the attributes in the HTTP request. Step 3 - The API gateway performs allow-list/deny-list checks. Step 4 - The API gateway talks to an identity provider for authentication and authorization. Step 5 - The rate limiting rules are applied to the request. If it is over the limit, the request is rejected. Steps 6 and 7 - Now that the request has passed basic checks, the API gateway finds the relevant service to route to by path matching. Step 8 - The API gateway transforms the request into the appropriate protocol and sends it to backend microservices. Steps 9-12 : The API gateway can handle errors properly, and deals with faults if the error takes a longer time to recover (circuit break). It can also leverage ELK (Elastic-Logstash-Kibana) stack for logging and monitoring. We sometimes cache data in the API gatew...