Dropwizard服务不是从以下stacktrace开始

Question

我得到了以下的堆栈跟踪。网上没有可能的原因

    Exception in thread "main" MultiException[javax.servlet.ServletException: name@337a8b==com.hubspot.dropwizard.guice.GuiceContainer,1,false, javax.servlet.ServletException: com.hubspot.dropwizard.guice.GuiceContainer-10d98940@327a1ad9==com.hubspot.dropwizard.guice.GuiceContainer,1,false]
    at org.eclipse.jetty.server.Server.doStart(Server.java:286)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at io.dropwizard.cli.ServerCommand.run(ServerCommand.java:43)
    at io.dropwizard.cli.EnvironmentCommand.run(EnvironmentCommand.java:43)
    at io.dropwizard.cli.ConfiguredCommand.run(ConfiguredCommand.java:76)
    at io.dropwizard.cli.Cli.run(Cli.java:70)
    at io.dropwizard.Application.run(Application.java:72)
    at MyService.main(MyService.java:45)
javax.servlet.ServletException: name@337a8b==com.hubspot.dropwizard.guice.GuiceContainer,1,false
    at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:561)
    at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:349)
    at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:812)
    at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:288)
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:732)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at com.codahale.metrics.jetty9.InstrumentedHandler.doStart(InstrumentedHandler.java:92)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.server.handler.RequestLogHandler.doStart(RequestLogHandler.java:131)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.server.handler.StatisticsHandler.doStart(StatisticsHandler.java:233)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.server.Server.start(Server.java:342)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.server.Server.doStart(Server.java:290)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at io.dropwizard.cli.ServerCommand.run(ServerCommand.java:43)
    at io.dropwizard.cli.EnvironmentCommand.run(EnvironmentCommand.java:43)
    at io.dropwizard.cli.ConfiguredCommand.run(ConfiguredCommand.java:76)
    at io.dropwizard.cli.Cli.run(Cli.java:70)
    at io.dropwizard.Application.run(Application.java:72)
    at MyService.main(MyService.java:45)
Caused by: com.sun.jersey.spi.inject.Errors$ErrorMessagesException
    at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
    at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
    at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)
    at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795)
    at com.hubspot.dropwizard.guice.GuiceContainer.initiate(GuiceContainer.java:70)
    at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:321)
    at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
    at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:207)
    at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:376)
    at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:559)
    at javax.servlet.GenericServlet.init(GenericServlet.java:244)
    at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:540)
    ... 36 more
javax.servlet.ServletException: com.hubspot.dropwizard.guice.GuiceContainer-10d98940@327a1ad9==com.hubspot.dropwizard.guice.GuiceContainer,1,false
    at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:561)
    at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:349)
    at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:812)
    at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:288)
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:732)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at com.codahale.metrics.jetty9.InstrumentedHandler.doStart(InstrumentedHandler.java:92)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.server.handler.RequestLogHandler.doStart(RequestLogHandler.java:131)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.server.handler.StatisticsHandler.doStart(StatisticsHandler.java:233)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:118)
    at org.eclipse.jetty.server.Server.start(Server.java:342)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:100)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:60)
    at org.eclipse.jetty.server.Server.doStart(Server.java:290)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
    at io.dropwizard.cli.ServerCommand.run(ServerCommand.java:43)
    at io.dropwizard.cli.EnvironmentCommand.run(EnvironmentCommand.java:43)
    at io.dropwizard.cli.ConfiguredCommand.run(ConfiguredCommand.java:76)
    at io.dropwizard.cli.Cli.run(Cli.java:70)
    at io.dropwizard.Application.run(Application.java:72)
    at MyService.main(MyService.java:45)
Caused by: com.sun.jersey.spi.inject.Errors$ErrorMessagesException
    at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
    at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
    at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)
    at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795)
    at com.hubspot.dropwizard.guice.GuiceContainer.initiate(GuiceContainer.java:70)
    at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:321)
    at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
    at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:207)
    at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:376)
    at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:559)
    at javax.servlet.GenericServlet.init(GenericServlet.java:244)
    at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:540)
    ... 36 more

我的所有可注射参数都是正确的，那段代码（初始化可注入对象）是在调试器中传递的。

Answer 1

原因是，

@POST
@Path("/trigger")
@Timed
@ApiOperation("trigger a event")
@UnitOfWork

我在两个API中使用相同的@Path，导致dropwizard启动失败。

Answer 2

您的问题和答案帮助我解决了问题。对于我的dropwizard服务，我遇到了类似的错误

Exception in thread "main" javax.servlet.ServletException: com.sun.jersey.spi.container.servlet.ServletContainer-581f1f40@e6b6b7b3==com.sun.jersey.spi.container.servlet.ServletContainer,1,false

Caused by: com.sun.jersey.spi.inject.Errors$ErrorMessagesException

结果证明是一样的。我的服务未启动，因为在同一资源/路径中有2个@POST。改变这一点开始了我的服务。

Answer 3

我遇到了这个问题，因为我没有在API中的方法参数之前使用此注释@PathParam("something")。

例如：

    @POST
    @Path("/internal/something/{var1}/{var2}")
    public Response doOperation(@NonNull @PathParam("var1") String var1, @NonNull @PathParam("var2") String var2) {

        // operation
    }