Geronimo plug -in, connector 1.6: How to use transaction manager in the Java class library (JTA11)
Geronimo plug -in, connector 1.6: How to use transaction manager in the Java class library (JTA11)
introduction:
Affairs management is an important technology that ensures the consistency and integrity of the data.In Java applications, JTA (Java Transaction API) is a commonly used transaction manager standard.The Geronimo plug -in and connectors 1.6 is a popular Java EE application server that provides support for JTA11.This article will introduce how to use the Geronimo plug -in and connecter 1.6 transaction manager in the Java library.
Step 1: Create the development environment
First, you need to install the Geronimo plug -in and connectors 1.6, and configure the Java development environment.You can download and install the latest version of Geronimo plug -in and connectors from Apache Geronimo's official website (https://geronimo.apache.org/).
Step 2: Add the Geronimo plug -in and connecter dependencies
In your Java class library project, you need to add the dependencies of the Geronimo plugin and the connector in the constructing configuration files (such as Maven Pom.xml).The following is a maven dependency configuration:
<dependencies>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-jta_1.1_spec</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
Please note that you may need to adjust the dependent version number according to the difference between the Geronimo plug -in and connecter versions you use.
Step 3: Configure transaction manager
In your Java class library project, you need to configure the transaction manager of the Geronimo plug -in and connectors.You can use the following code example to create and configure a JTA11 transaction manager:
import javax.transaction.TransactionManager;
import org.apache.geronimo.transaction.manager.GeronimoTransactionManager;
public class TransactionManagerExample {
private TransactionManager transactionManager;
public TransactionManagerExample() {
transactionManager = new GeronimoTransactionManager();
}
public TransactionManager getTransactionManager() {
return transactionManager;
}
}
In the above examples, the GeronimotransactionsManager class realizes the javax.transaction.transactionManager interface, which can be used as a transaction manager in the Java class library.
Step 4: Use the transaction manager
Now you can use the GERONIMO plug -in and connecters in your Java library.The following is a sample code fragment that uses the transaction manager:
import javax.transaction.Transaction;
public class MyService {
private TransactionManagerExample transactionManagerExample;
public void doSomethingInTransaction() throws Exception {
// Get the transaction manager
TransactionManager transactionManager = transactionManagerExample.getTransactionManager();
// Starting transaction
transactionManager.begin();
try {
// Perform your transaction related code here
// Submit a transaction
transactionManager.commit();
} catch (Exception e) {
// If an abnormality occurs, roll back the transaction
transactionManager.rollback();
throw e;
}
}
}
In the above examples, we first obtained instances of the transaction manager and used the Begin () method to start a new transaction.Then, some transaction -related code is executed in TRY blocks.Finally, we use the Commit () method to submit transactions.If abnormalities occur during execution, we will use the Rollback () method back and forth.
Summarize:
This article introduces how to use the GERONIMO plugin and connecter 1.6 transaction manager (JTA11) in the Java class library.By adding correct dependence, configuration and use of transaction managers, you can achieve reliable transaction processing in the Java class library project.Please refer to the code examples provided in this article and make appropriate modifications and customization according to your specific needs.
