Comparison of affairs management in Java Affairs API and Java Library

Comparison of affairs management in Java Affairs API and Java Library Affairs is a mechanism often used in software development to ensure the consistency and integrity of data.In Java, there are two main ways to manage the management: Java Affairs API and Java class libraries. The Java transaction API is a set of standard APIs provided by the Java platform to manage data access.It contains a series of interfaces and classes, which can operate the beginning, submission, and rollback of the management of affairs by programming. The core interface of the Java transaction API is the `TransactionManager`, which defines the basic operation of the transaction manager.When using the Java transaction API for transaction management, it usually needs to be operated according to the following steps: 1. Get the transaction manager: obtain the corresponding transaction manager instance through the `TransactionManagerFactory`. TransactionManager tm = TransactionManagerFactory.getTransactionManager(); 2. Starting transaction: Use the `Begin` method of the transaction manager to start a new transaction. tm.begin(); 3. Executive business logic: execute business logic within the scope of transaction. // Execute the database operation 4. Submit transactions: Submit transaction with the `commit` method of the transaction manager. tm.commit(); 5. Cancellation: In the case of abnormal or rolling, use the `Rollback` method of the transaction manager to roll back the transaction. tm.rollback(); The Java transaction API provides a flexible way to manage the affairs that can meet different business needs.However, using the Java transaction API requires the code for manual management of transaction management, which is relatively cumbersome. In contrast, it is the transaction management in the Java library.The transaction management in the Java class library usually refers to the process of using a third -party library or framework to simplify transaction management.Some popular Java libraries include transaction management in the Spring framework and transaction management in the Hibernate framework. Using the transaction management in the Java library can more easily achieve transaction management.Taking the Spring framework as an example, using Spring's transaction management can simplify the writing of transaction code, and only need to use the annotation or configuration method to complete the management of transaction.The example code is as follows: @Service @Transactional public class MyService { @Autowired private MyRepository myRepository; public void doSomething() { // Execute business logic myRepository.save(); } } In the above code, the `@transactional` annotation marks the boundary of the transaction. Spring will automatically manage the transaction according to the annotation without manually writing the code of transaction management. The transaction management in the Java class library is more concise and easy to use compared to the Java transaction API, but there may be a certain amount of learning and configuration costs. In summary, there are advantages and disadvantages in the management of the Java Affairs API and Java class libraries. Which method to choose depends on the specific needs and the characteristics of the project.The Java transaction API provides more flexible and customized transaction management methods, which is suitable for projects that have higher requirements for transaction management; and the transaction management in the Java class library can save the cumbersome and more convenient and more convenient to write transaction management code manually.