6517517ca9
This commit avoids eager creation of Environment instances, favoring delegation of already existing Environment objects where possible. For example, FrameworkServlet creates an ApplicationContext; both require a StandardServletEnvironment instance, and prior to this change, two instances were created where one would suffice - indeed these two instances may reasonably be expected to be the same. Now, the FrameworkServlet defers creation of its Environment, allowing users to supply a custom instance via its #setEnvironment method (e.g. within a WebApplicationInitializer); the FrameworkServlet then takes care to delegate that instance to the ApplicationContext created in #createWebApplicationContext. This behavior produces more consistent behavior with regard to delegation of the environment, saves unnecessary cycles by avoiding needless instantiation and calls to methods like StandardServletEnvironment#initPropertySources and leads to better logging output, as the user sees only one Environment created and initialized when working with the FrameworkServlet/DispatcherServlet. This commit also mirrors these changes across the corresponding Portlet* classes. Issue: SPR-9763
Spring Framework
The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform. A key element of Spring is infrastructural support at the application level: Spring focuses on the "plumbing" of enterprise applications so that teams can focus on application-level business logic, without unnecessary ties to specific deployment environments.
The framework also serves as the foundation for Spring Integration, Spring Batch and the rest of the Spring family of projects. Browse the repositories under the SpringSource organization on GitHub for a full list.
.NET and Python variants are available as well.
Downloading artifacts
See downloading Spring artifacts for Maven repository information. Unable to use Maven or other transitive dependency management tools? See building a distribution with dependencies.
Documentation
See the current Javadoc and reference docs.
Getting support
Check out the Spring forums and the spring and spring-mvc tags on Stack Overflow. Commercial support is available too.
Issue Tracking
Report issues via the Spring Framework JIRA. Understand our issue management process by reading about the lifecycle of an issue. Think you've found a bug? Please consider submitting a reproduction project via the spring-framework-issues GitHub repository. The readme there provides simple step-by-step instructions.
Building from source
The Spring Framework uses a Gradle-based build system. In the instructions
below, ./gradlew is invoked from the root of the source tree and serves as
a cross-platform, self-contained bootstrap mechanism for the build. The only
prerequisites are Git and JDK 1.6+.
check out sources
git clone git://github.com/SpringSource/spring-framework.git
compile and test, build all jars, distribution zips and docs
./gradlew build
install all spring-* jars into your local Maven cache
./gradlew install
import sources into your IDE
Run ./import-into-eclipse.sh or read import-into-idea.md as appropriate.
... and discover more commands with ./gradlew tasks. See also the Gradle
build and release FAQ.
Contributing
Pull requests are welcome; see the contributor guidelines for details.
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License
The Spring Framework is released under version 2.0 of the Apache License.