播放框架2.4：使用弹出式注入与游戏框架而不是Guice [英] Play-Framework 2.4: Use Spring Depedency Injection with Play-Framework Instead of Guice
问题描述
我使用 Spring-Depedency 注入而不是 Play-Framework Guice 根据我们的要求，我们需要在我们的应用程序中使用大多数 Spring-Modules ，如 Spring-Data-Mongodb 等。但是问题是，我们的依赖关系在控制器中没有正确注入，如下所示：
I am using Spring-Depedency injection instead of Play-Framework Guice Depedency injection, because of our requirement, we need to use most of the Spring-Modules in our application like Spring-Data-Mongodb etc. But the problem is that, our dependencies are not inject properly in controller like as below:
我的配置：
@Configuration
@ComponentScan(basePackages={"service", "controllers"})
@EnableMongoRepositories(basePackages="repository")
public class SpringDataMongoConfiguration extends AbstractMongoConfiguration{
private play.Configuration configuration = play.Configuration.root();
private MongoClientOptions mongoClientOptions(){
Builder builder = new Builder();
builder.connectionsPerHost(configuration.getInt("connections-per-host"));
builder.connectTimeout(configuration.getInt("connections-timeout"));
builder.maxConnectionIdleTime(configuration.getInt("max-connections-idle-time"));
builder.maxConnectionLifeTime(configuration.getInt("max-connections-life-time"));
builder.minConnectionsPerHost(configuration.getInt("max-connections-per-host"));
builder.socketKeepAlive(configuration.getBoolean("socket-keep-live"));
builder.socketTimeout(configuration.getInt("socket-timeout"));
return builder.build();
}
private ServerAddress serverAddress(){
ServerAddress serverAddress = new ServerAddress(new InetSocketAddress(configuration.getString("mongodb.uri"), configuration.getInt("mongodb.port")));
return serverAddress;
}
@Override
protected String getDatabaseName() {
return configuration.getString("mongodb.dbname");
}
@Override
public Mongo mongo() throws Exception {
return new MongoClient(serverAddress(), mongoClientOptions());
}
@Override
protected String getMappingBasePackage() {
return configuration.getString("package.scan");
}}
我的 build.sbt 依赖关系：
libraryDependencies ++= Seq(
javaJdbc,
cache,
javaWs,
"org.springframework" % "spring-context" % "4.1.6.RELEASE",
"org.springframework.data" % "spring-data-mongodb" % "1.7.2.RELEASE")
// Play provides two styles of routers, one expects its actions to be injected, the
// other, legacy style, accesses its actions statically.
// routesGenerator := InjectedRoutesGenerator
fork in run := true
在 build.sbt 中，我评论 routesGenerator：= InjectedRoutesGenerator 停止玩Guice依赖注入。
我的路由文件：
# Home page
GET / @controllers.Application.index()
当我运行应用程序时，我收到以下错误：
When i run the application, i am getting following error:
- play.api.libs.concurrent.ActorSystemProvider - Starting application default Akka system: application
- play.api.Play - Application started (Dev)
********************************** userService : null
- application -
! @6nbpln6jk - Internal server error, for (GET) [/] ->
根据这个错误，Spring @Autowire 注释无法正常工作。但是我没有得到理由，当春天 @Autowire 没有工作？我如何解决这个问题？
According to this error, Spring @Autowire annotation does not work properly. But i am not getting the reason, when spring @Autowire not worked? How could i resolve this issue?
推荐答案
这个答案不会解决你的问题，但我希望它会指导你如何使用不同的方法来克服你的问题。首先，我正在使用Spring集成在Play中，但是Spring现在使用一个抽象类来处理自己的生命周期。 Play（2.4。*）使用其缺省的Guice注入支持。
This answer will not solve your problem but I hope it will guide you how to overcome your problem using a different approach. First of all, I'm using Spring integrated in Play however, Spring uses an abstraction class and handles its own life cycle for now. Play (2.4.*) uses its default Guice injection support.
对于您的问题，在我的研究之后，我发现了关于更换/集成Spring依赖注入与果汁的链接在播放2.4。然而，与Spring for Play 2.4的集成尚不存在，James Ropper只有这样一个原型：
For your problem, after my research I've found these links about replacing/integrating Spring's dependency injection with juice in Play 2.4. However, integration with Spring for Play 2.4 doesn't exist yet, there is only a prototype done by James Ropper as stated in this issue:
github.com/playframework/playframework/issues/4665
github.com/spring-projects/spring-guice
这篇关于播放框架2.4：使用弹出式注入与游戏框架而不是Guice的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
