Extends the Spring programming model to support the well-known Enterprise Integration Patterns. Spring Integration enables lightweight messaging within Spring-based applications and supports integration with external systems via declarative adapters. Those adapters provide a higher-level of abstraction over Spring’s support for remoting, messaging, and scheduling. Spring Integration’s primary goal is to provide a simple model for building enterprise integration solutions while maintaining the separation of concerns that is essential for producing maintainable, testable code.
Using the Spring Framework encourages developers to code using interfaces and use dependency injection (DI) to provide a Plain Old Java Object (POJO) with the dependencies it needs to perform its tasks. Spring Integration takes this concept one step further, where POJOs are wired together using a messaging paradigm and individual components may not be aware of other components in the application. Such an application is built by assembling fine-grained reusable components to form a higher level of functionality. With careful design, these flows can be modularized and also reused at an even higher level.
In addition to wiring together fine-grained components, Spring Integration provides a wide selection of channel adapters and gateways to communicate with external systems. Channel Adapters are used for one-way integration (send or receive); gateways are used for request/reply scenarios (inbound or outbound).
First, you need dependencies in your POM/Gradle:
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-core</artifactId>
</dependency>which is also pulled transitively if you deal with target protocol channel adapters. For example for Apache Kafka support you need just this:
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-kafka</artifactId>
</dependency>For annotations or Java DSL configuration you need to enable Spring Integration in the application context:
@EnableIntegration
@Configuration
public class ExampleConfiguration {
}Please see our Code of conduct.
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The Spring Integration maintains reference documentation (published and source), GitHub wiki pages, and an API reference. There are also guides and tutorials across Spring projects.
To check out the project and build from the source, do the following:
git clone git://github.com/spring-projects/spring-integration.git
cd spring-integration
./gradlew clean test
or
./gradlew clean testAll
The latter runs additional tests (those annotated with @LongRunningIntegrationTest); it is a more thorough test but takes quite a lot longer to run.
The test results are captured in build/reports/tests/test (or .../testAll) under each module (in HTML format).
Add --continue to the command to perform a complete build, even if there are failing tests in some modules; otherwise the build will stop after the current module(s) being built are completed.
NOTE: While Spring Integration runs with Java SE 17 or higher, a Java 17 compiler is required to build the project.
To build and install jars into your local Maven cache:
./gradlew build publishToMavenLocal
To build api Javadoc (results will be in build/api):
./gradlew api
To build the reference documentation (results will be in build/site):
./gradlew antora
To build complete distribution including -dist, -docs, and -schema zip files (results will be in build/distributions):
./gradlew dist
If you have the BuildShip plugin installed,
File -> Import -> Gradle -> Existing Gradle Project
To generate Eclipse metadata (.classpath and .project files, etc.), do the following:
./gradlew eclipse
Once complete, you may then import the projects into Eclipse as usual:
File -> Import -> General -> Existing projects into workspace
Browse to the 'spring-integration' root directory. All projects should import free of errors.
To import the project into IntelliJ IDEA:
File -> Open... -> and select build.gradle from spring-integration project root directory
See also Contributor Guidelines.
For more information, please visit the Spring Integration website at: https://spring.io/projects/spring-integration
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