The technical principles of exploring the Java transaction API framework

The Java transaction API framework is a development tool for managing and handling transactions in Java applications. It provides a simplified and standardized way to handle database transactions, network affairs, and other operations that require transaction processing.Affairs is a set of logical units of associated operations, either successfully executed or rolling back.This article will explore the technical principles of the Java transaction API framework and provide some Java code examples. The core concept of the Java transaction API framework is the transaction manager.The transaction manager is responsible for managing the declaration cycle of the entire transaction, including the start, submission, and rollback of the affairs.The Java transaction API framework provides two key interfaces to realize the transaction manager: `javax.transaction.usertransaction` and` javax.transaction.tractionManager`. `UseRTRANSACTION` Interface provides basic operations of transactions, such as Begin, Commission, and Rollback.Below is a sample code that shows how to use the `Usertransaction` interface to create and manage a simple database business: import javax.transaction.*; public class TransactionExample { public static void main(String[] args) { try { // Get the transaction manager UserTransaction tx = (UserTransaction) new InitialContext().lookup("java:comp/UserTransaction"); // Open transaction tx.begin(); // Execute the database operation // ... // Submit a transaction tx.commit(); } catch (Exception e) { // Roll back transactions tx.rollback(); } } } `TransactionManager` interface provides higher -level transaction management functions, such as setting up transactions, hanging and restoring transactions.The following is a sample code that shows how to use the `TransactionManager` interface: import javax.transaction.*; public class TransactionExample { public static void main(String[] args) { try { // Get the transaction manager TransactionManager tm = (TransactionManager) new InitialContext().lookup("java:/TransactionManager"); // Set the transaction timeout time for 5 minutes tm.setTransactionTimeout(300); // Open transaction tm.begin(); // Execute network operation // ... // Submit a transaction tm.commit(); } catch (Exception e) { // Roll back transactions tm.rollback(); } } } In addition to the transaction manager, the Java transaction API framework also provides some other key components, such as Transaction Definition, Transaction Status, and Transaction Synchronization.These components work together to ensure that the transaction is submitted or rolled at the right time, and some cleaning actions are performed after the transaction is completed. To sum up, the Java transaction API framework is a tool for managing and handling transactions in Java applications.It provides a simplified and standardized way of transaction processing based on affairs manager, transaction definition, transaction status, and transaction synchronizer.Through the interface method of the transaction manager, we can easily create, submit, and roll back transactions to ensure the consistency and integrity of the operation. I hope this article will help you understand the technical principles of the Java transaction API framework.