近期在研究谷歌出的一个轻量级的di框架guice，整合实现jsr311标准的jersey框架，网上这方面的资料不多，所以记录下学习过程以及抛出问题的，大家一起学习讨论。
Pom配置文件：
web.xml的配置：
<listener> <listener-class>com.nd.sdp.guice.WafGuiceServletContext</listener-class> </listener> <filter> <filter-name>guiceFilter</filter-name> <filter-class>com.google.inject.servlet.GuiceFilter</filter-class> </filter> <filter-mapping> <filter-name>guiceFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
public class WafGuiceServletContext extends GuiceServletContextListener {
Logger logger = Logger.getLogger(this.getClass());
public static Injector injector;
@Override
protected Injector getInjector() {
injector = Guice.createInjector(new ServletModule() {
// Configure your IOC
@Override
protected void configureServlets() {
logger.info("======getInjector=======");
bind(ServletContainer.class).in(Singleton.class);
Map<String, String> props = new HashMap<String, String>();
props.put("javax.ws.rs.Application", WafApplication.class.getName());
// props.put("jersey.config.server.wadl.disableWadl", "true");
serve("/*").with(ServletContainer.class, props);
}
});
return injector;
}
}
import javax.inject.Inject;
import org.apache.log4j.Logger;
import org.glassfish.jersey.server.ResourceConfig;
public class WafApplication extends ResourceConfig {
Logger logger = Logger.getLogger(this.getClass());
@Inject
public WafApplication() {
logger.info("============WafApplication==========");
register(new MyApplicationBinder());
// Set package to look for resources in
packages(true, "com.nd.sdp.controller");
}
}
import org.glassfish.hk2.utilities.binding.AbstractBinder;
import com.google.inject.Singleton;
import com.nd.sdp.service.StudentService;
import com.nd.sdp.service.StudentServiceImpl;
public class MyApplicationBinder extends AbstractBinder {
@Override
protected void configure() {
// TODO Auto-generated method stub
bind(StudentService.class).to(StudentServiceImpl.class).in(Singleton.class);
}
}
tomcat7启动运行，抛出异常信息：
警告: The following warnings have been detected: WARNING: Unknown HK2 failure detected:
MultiException stack 1 of 3
org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=StudentService,parent=StudentController,qualifiers={},position=-1,optional=false,self=false,unqualified=null,1565623650)
at org.jvnet.hk2.internal.ThreeThirtyResolver.resolve(ThreeThirtyResolver.java:74)
at org.jvnet.hk2.internal.ClazzCreator.resolve(ClazzCreator.java:214)
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:237)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:360)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471)
at org.glassfish.jersey.process.internal.RequestScope.findOrCreate(RequestScope.java:161)
at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2270)
at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:687)
at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:652)
at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:169)
at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:185)
at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:74)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:112)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:116)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:116)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:116)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:94)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:63)
at org.glassfish.jersey.process.internal.Stages.process(Stages.java:197)
at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:295)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors$1.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:316)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1073)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:377)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263)
at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178)
at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62)
at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
知道怎么接这个bug的同学欢迎指教！谢谢！