HK2 没有看到 Spring 个豆子
HK2 does not see Spring Beans
我有一个带有 Jersey 2 REST 服务的 Spring 启动应用程序。
Spring 启动似乎正确初始化并且我有 Jersey Spring 桥 ('org.glassfish.jersey.ext:jersey-spring3:2.22.2')。
尽管如此，还是会抛出以下错误，然后初始化 REST 控制器 (JAX-RS 2.0)，并且必须将 Spring Bean 注入其中。
org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection
什么会导致这样的错误？
bean 存在并用@Named 注释，所以这不是问题。 Spring 默认情况下启动也会扫描 JSR-330 注释。
编辑：
初始化使用：
@SpringBootApplication
public class Application extends SpringBootServletInitializer implements WebApplicationInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>javax.ws.rs.core.Application</servlet-name>
</servlet>
<servlet-mapping>
<servlet-name>javax.ws.rs.core.Application</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
堆栈跟踪：
DEBUG o.glassfish.jersey.server.ServerRuntime$Responder - An exception mapping did not successfully produce and processed a response. Logging the exception propagated to the container.
org.glassfish.hk2.api.MultiException: A MultiException has 3 exceptions. They are:
1. org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=RequestEndEventLogger,parent=RequestEndEventController,qualifiers={},position=-1,optional=false,self=false,unqualified=null,125747480)
2. java.lang.IllegalArgumentException: While attempting to resolve the dependencies of com.company.controller.RequestEndEventController errors were found
3. java.lang.IllegalStateException: Unable to perform operation: resolve on com.company.controller.RequestEndEventController
at org.jvnet.hk2.internal.Collector.throwIfErrors(Collector.java:89)
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:249)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:357)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471)
at org.jvnet.hk2.internal.SingletonContext.compute(SingletonContext.java:83)
at org.jvnet.hk2.internal.SingletonContext.compute(SingletonContext.java:71)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.call(Cache.java:97)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.run(Cache.java:154)
at org.glassfish.hk2.utilities.cache.Cache.compute(Cache.java:199)
at org.jvnet.hk2.internal.SingletonContext.findOrCreate(SingletonContext.java:122)
at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2022)
at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:765)
at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:704)
at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:172)
at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:284)
at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:74)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:109)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:92)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:61)
at org.glassfish.jersey.process.internal.Stages.process(Stages.java:197)
at org.glassfish.jersey.server.ServerRuntime.run(ServerRuntime.java:318)
at org.glassfish.jersey.internal.Errors.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:120)
at org.springframework.boot.context.web.ErrorPageFilter.access[=14=]0(ErrorPageFilter.java:61)
at org.springframework.boot.context.web.ErrorPageFilter.doFilterInternal(ErrorPageFilter.java:95)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2500)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2489)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=RequestEndEventLogger,parent=RequestEndEventController,qualifiers={},position=-1,optional=false,self=false,unqualified=null,125747480)
at org.jvnet.hk2.internal.ThreeThirtyResolver.resolve(ThreeThirtyResolver.java:75)
at org.jvnet.hk2.internal.ClazzCreator.resolve(ClazzCreator.java:211)
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:234)
... 80 common frames omitted
控制器是：
@Named
@Singleton
@Path("/RequestEndEvent")
public class RequestEndEventController {
private final Logger log = LoggerFactory.getLogger(getClass());
@Inject
private RequestEndEventLogger logger;
@POST
@Consumes(MediaType.APPLICATION_JSON)
public Response sendRequestEndEvent(RequestEndEvent requestEndEvent) {
logger.addRequestEndEvent(requestEndEvent);
return Response.status(Response.Status.OK).build();
}
}
实际问题是在评论中发现的（原始问题中未显示）。
使用 @SpringBootApplication（三个注释的别名，包括 @ComponentScan），您可以使用 Spring 免费进行组件扫描。但是组件扫描的工作原理（没有指定要扫描的包）是它将扫描 @ComponentScan 注释的包 class，以及它的子包。因此，建议将 "application" class 放在根包中，并将所有其他包作为该包的子包，例如
com.app
Application
com.app.services
LoggingService
com.app.repos
UserRepo
通过此设置，将扫描所有包以查找带注释的组件 classes。我猜 OP 没有这样设置，所以 Spring 组件没有在扫描中被拾取。
我有一个带有 Jersey 2 REST 服务的 Spring 启动应用程序。 Spring 启动似乎正确初始化并且我有 Jersey Spring 桥 ('org.glassfish.jersey.ext:jersey-spring3:2.22.2')。 尽管如此，还是会抛出以下错误，然后初始化 REST 控制器 (JAX-RS 2.0)，并且必须将 Spring Bean 注入其中。
org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection
什么会导致这样的错误？
bean 存在并用@Named 注释，所以这不是问题。 Spring 默认情况下启动也会扫描 JSR-330 注释。
编辑： 初始化使用：
@SpringBootApplication
public class Application extends SpringBootServletInitializer implements WebApplicationInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>javax.ws.rs.core.Application</servlet-name>
</servlet>
<servlet-mapping>
<servlet-name>javax.ws.rs.core.Application</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
堆栈跟踪：
DEBUG o.glassfish.jersey.server.ServerRuntime$Responder - An exception mapping did not successfully produce and processed a response. Logging the exception propagated to the container.
org.glassfish.hk2.api.MultiException: A MultiException has 3 exceptions. They are:
1. org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=RequestEndEventLogger,parent=RequestEndEventController,qualifiers={},position=-1,optional=false,self=false,unqualified=null,125747480)
2. java.lang.IllegalArgumentException: While attempting to resolve the dependencies of com.company.controller.RequestEndEventController errors were found
3. java.lang.IllegalStateException: Unable to perform operation: resolve on com.company.controller.RequestEndEventController
at org.jvnet.hk2.internal.Collector.throwIfErrors(Collector.java:89)
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:249)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:357)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471)
at org.jvnet.hk2.internal.SingletonContext.compute(SingletonContext.java:83)
at org.jvnet.hk2.internal.SingletonContext.compute(SingletonContext.java:71)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.call(Cache.java:97)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.run(Cache.java:154)
at org.glassfish.hk2.utilities.cache.Cache.compute(Cache.java:199)
at org.jvnet.hk2.internal.SingletonContext.findOrCreate(SingletonContext.java:122)
at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2022)
at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:765)
at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:704)
at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:172)
at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:284)
at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:74)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:109)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:92)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:61)
at org.glassfish.jersey.process.internal.Stages.process(Stages.java:197)
at org.glassfish.jersey.server.ServerRuntime.run(ServerRuntime.java:318)
at org.glassfish.jersey.internal.Errors.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:120)
at org.springframework.boot.context.web.ErrorPageFilter.access[=14=]0(ErrorPageFilter.java:61)
at org.springframework.boot.context.web.ErrorPageFilter.doFilterInternal(ErrorPageFilter.java:95)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:113)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2500)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2489)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=RequestEndEventLogger,parent=RequestEndEventController,qualifiers={},position=-1,optional=false,self=false,unqualified=null,125747480)
at org.jvnet.hk2.internal.ThreeThirtyResolver.resolve(ThreeThirtyResolver.java:75)
at org.jvnet.hk2.internal.ClazzCreator.resolve(ClazzCreator.java:211)
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:234)
... 80 common frames omitted
控制器是：
@Named
@Singleton
@Path("/RequestEndEvent")
public class RequestEndEventController {
private final Logger log = LoggerFactory.getLogger(getClass());
@Inject
private RequestEndEventLogger logger;
@POST
@Consumes(MediaType.APPLICATION_JSON)
public Response sendRequestEndEvent(RequestEndEvent requestEndEvent) {
logger.addRequestEndEvent(requestEndEvent);
return Response.status(Response.Status.OK).build();
}
}
实际问题是在评论中发现的（原始问题中未显示）。
使用 @SpringBootApplication（三个注释的别名，包括 @ComponentScan），您可以使用 Spring 免费进行组件扫描。但是组件扫描的工作原理（没有指定要扫描的包）是它将扫描 @ComponentScan 注释的包 class，以及它的子包。因此，建议将 "application" class 放在根包中，并将所有其他包作为该包的子包，例如
com.app
Application
com.app.services
LoggingService
com.app.repos
UserRepo
通过此设置，将扫描所有包以查找带注释的组件 classes。我猜 OP 没有这样设置，所以 Spring 组件没有在扫描中被拾取。