Use the Bitronix Transaction Manager :: CORE in the Java Library to implement transaction management
Use the Bitronix Transaction Manager :: CORE in the Java Library to implement transaction management
introduction:
In complex applications, transaction management is a very important part.Affairs management can ensure the consistency and integrity of data in database operations or other resources.There are many transaction managers in the Java class library to choose from, of which Bitronix Transaction Manager :: Core is a very popular one.This article will introduce how to use the Bitronix Transaction Manager :: Core to implement transaction management and provide corresponding programming code and related configuration.
Step 1: Install and configure Bitronix Transaction Manager :: Core
1. First, download the jar file of Bitronix Transaction Manager :: Core and add it to the project's classpath.
2. Add the following configuration in the configuration file of the project (such as Application.properties):
spring.jta.log-dir=logs
spring.jta.log-part1-filename=btm1.tlog
spring.jta.server-id=btm1
These configurations will specify the log directory and file name of the transaction manager, as well as the server ID.
Step 2: Use Bitronix Transaction Manager :: COR
1. In the class that requires transaction management, add the following code to obtain an instance of the Bitronix Transaction Manager:
import bitronix.tm.TransactionManagerServices;
public class TransactionManagerDemo {
public static void main(String[] args) {
// Initialize Bitronix Transaction Manager
TransactionManager transactionManager = TransactionManagerServices.getTransactionManager();
try {
// Start a new business
transactionManager.begin();
// Perform database operations or other resource access here
// Successful execution and submitting transactions
transactionManager.commit();
} catch (Exception e) {
// Abnormal, roll back the transaction
transactionManager.rollback();
}
}
}
The above code obtained the examples of Bitronix Transaction Manager by calling the transactionManageerServiceS.GettransactionManager () method, and used the Begin () method to start a new transaction using the Begin () method.Execute the database operation or other resource access in the transaction. If the execution is successful, use the Commit () method to submit the transaction, otherwise the Rollback () method is used to roll back the transaction.
2. In the class that needs to be managed by multiple resources, the following code can be implemented by adding the following code:
import bitronix.tm.resource.jdbc.PoolingDataSource;
public class MultipleResourceTransactionDemo {
public static void main(String[] args) {
// Create Bitronix Transaction Manager instance
TransactionManager transactionManager = TransactionManagerServices.getTransactionManager();
// Create a database connection pool
PoolingDataSource dataSource1 = new PoolingDataSource();
dataSource1.setClassName("com.mysql.jdbc.jdbc2.optional.MysqlXADataSource");
dataSource1.setUniqueName("datasource1");
dataSource1.setAutomaticEnlistingEnabled(true);
dataSource1.setMaxPoolSize(10);
dataSource1.setAllowLocalTransactions(true);
// Set the database connection parameter
dataSource1.getDriverProperties().setProperty("url", "jdbc:mysql://localhost:3306/database1");
dataSource1.getDriverProperties().setProperty("user", "root");
dataSource1.getDriverProperties().setProperty("password", "password");
// Create the second database connection pool
PoolingDataSource dataSource2 = new PoolingDataSource();
// Set connection attributes (similar to DataSource1)
try {
// Start a new business
transactionManager.begin();
// Obtain resources and perform operations
Connection conn1 = dataSource1.getConnection();
// Execute the database operation
Connection conn2 = dataSource2.getConnection();
// Execute the database operation
// Successful execution and submitting transactions
transactionManager.commit();
} catch (Exception e) {
// Abnormal, roll back the transaction
transactionManager.rollback();
} finally {
// Close the database connection and data source
dataSource1.close();
dataSource2.close();
}
}
}
In the above code, we created two database connection pools (DataSource1 and DataSource2), and use the Begintraction () method to start a new transaction.In transactions, we obtain the database connection through the getConnection () method, and then perform the corresponding database operation.If the operation is successful, use the Commit () method to submit transactions, otherwise the rollback () method is used to roll back the transaction.
Summarize:
This article introduces how to use the Bitronix Transaction Manager :: Core to implement transaction management.First of all, we installed and configured the Bitronix Transaction Manager :: Core.Then, we gave basic examples of using Bitronix Transaction Manager, as well as specific steps when multiple resources need to be managed.By mastering these knowledge, we can better use the Bitronix Transaction Manager :: CORE in the Java class library to manage transactions to ensure the consistency and integrity of the application of the application.
