The functional characteristics and example sharing of the Donovan framework in the Java class library

The Donovan framework is a powerful Java class library that focuses on simplifying and accelerating the development process.It provides many useful features to improve the maintenance and performance of Java applications.Here are some functional characteristics and instance sharing of the Donovan framework. 1. convenient configuration management: The Donovan framework provides flexible configuration management functions that can easily load and use the configuration file.For example, if your application needs to use a configuration file to store the database connection information, you can use the CONFIGMANAGER class of the Donovan framework to load and get these configuration values.The following is a simple example: String dbUrl = ConfigManager.getInstance().getString("db.url"); String dbUsername = ConfigManager.getInstance().getString("db.username"); String dbPassword = ConfigManager.getInstance().getString("db.password"); 2. Powerful logging tools: The Donovan framework has a powerful logging tool that can easily record the operating status and debugging information of the application.You can use the Donovan Logger class to create a log recorder and use different levels (such as Debug, Info, ERROR) to record different types of messages.The following is a simple example: Logger logger = Logger.getLogger(MyClass.class); logger.debug("Debug message"); logger.info("Info message"); logger.error("Error message"); 3. High -efficiency database access: The Donovan framework provides a simple and powerful database access function, making the interaction with relational database easier.It supports common database operations (such as query, update, insertion, and deletion) and transaction management.The following is a simple example: // Initialize the database connection pool DatabaseConnectionPool.getInstance().init(dbUrl, dbUsername, dbPassword); // Execute the query try (DatabaseConnection connection = DatabaseConnectionPool.getInstance().getConnection()) { String sql = "SELECT * FROM users WHERE age > 18"; ResultSet resultSet = connection.executeQuery(sql); // Treatment results set while (resultSet.next()) { // ... } } catch (SQLException e) { e.printStackTrace(); } 4. Convenient thread pool management: The Donovan framework provides simple and powerful thread pool management functions, which can easily perform concurrent tasks.You can use the Donovan's ThreadPool class to create a thread pool and submit tasks for execution.The following is a simple example: ThreadPool ThreadPool = New ThreadPool (10); // Create a thread pool of 10 threads // Submit the task for (int i = 0; i < 100; i++) { threadPool.submit(() -> { // Execute the task code }); } // Close the thread pool threadPool.shutdown(); In short, the Donovan framework provides many powerful functions that can help Java developers build applications faster and more efficiently.Whether it is configuration management, log records, database access or thread management, the Donovan framework can provide developers with convenient and reliable solutions.