Common problems and solutions in the T Rex framework summary

T Rex is an open source Java framework that is used to build a distributed system and microservice architecture.Although this framework is very popular and has powerful functions, users may still encounter some common problems during use.In this article, we will introduce some common T Rex frameworks and provide some solutions.The following is a summary list: 1. Question: How to correctly configure the database connection in the T Rex project? Solution: First, make sure that the correct database connection information is configured in the configuration file of the project.Then, you can use the DataSource control provided by the framework to create a database connection.The following is a simple example code: DataSource dataSource = new DataSource(); dataSource.setUrl("jdbc:mysql://localhost:3306/mydatabase"); dataSource.setUsername("username"); dataSource.setPassword("password"); 2. Question: How to deal with concurrent requests in T Rex? Solution: T Rex provides multi -threaded support to process multiple requests at the same time.You can use the @Async annotation provided by the framework to mark the method that can be performed asynchronous.The following is an example code: @Service public class MyService { @Async public void processRequest(Request request) { // Treat the code of the request } } 3. Question: How to get a request for retry in T Rex? Solution: You can use the RetryTemplate provided by the framework to achieve request retry.RetryTemplate provides a flexible retry strategy configuration option.The following is an example code: RetryTemplate retryTemplate = new RetryTemplate(); FixedBackOffPolicy backOffPolicy = new FixedBackOffPolicy(); backOffPolicy.setbackoffperiod (1000L); // Set the heavy test interval for 1 second retryTemplate.setBackOffPolicy(backOffPolicy); SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy(); RetryPolicy.setmaxatTempts (3); // Set the maximum number of retry times for 3 times retryTemplate.setRetryPolicy(retryPolicy); retryTemplate.execute(context -> { // Send the code for the request return null; }); 4. Question: How to test the unit test of the T Rex project? Solution: You can use the test tools and annotations provided by the framework to write unit testing.For example, you can use @runwith (mockitojunitrunner.class) to run the simulation test, and use @mock annotation to create analog objects.The following is an example code: @RunWith(MockitoJUnitRunner.class) public class MyServiceTest { @Mock private MyRepository myRepository; @InjectMocks private MyService myService; @Test public void testProcessRequest() { Request request = new Request(); // Set test data myService.processRequest(request); // Validation results } } The above is some of the common problems in the T Rex framework.I hope these examples can help you better solve the problem and use the T Rex framework.Before starting to use T Rex, please read the official documentation to learn more about the detailed information and best practice about the framework.