小贝子编程

Groovy + Dropwizard and servlet 3.1.0 issue



我正在尝试使用基于DropWizard Framework 0.8.1的Groovy 2.4.1创建一个简单的REST服务器。我用于此概念证明的时髦脚本是：

import com.codahale.metrics.annotation.Timed
import com.google.common.base.Optional
import io.dropwizard.Application
import io.dropwizard.Configuration
import io.dropwizard.setup.Bootstrap
import io.dropwizard.setup.Environment
import javax.ws.rs.GET
import javax.ws.rs.Path
import javax.ws.rs.Produces
import javax.ws.rs.QueryParam
import javax.ws.rs.core.MediaType
@Grapes([
        @Grab(group = 'io.dropwizard', module = 'dropwizard-core', version = '0.8.1')])
class RESTProviderConfiguration extends Configuration {
    String template
}
class RESTProviderApplication extends Application<RESTProviderConfiguration> {
    @Override
    String getName() {
        'hello-world'
    }
    @Override
    void initialize(Bootstrap<RESTProviderConfiguration> bootstrap) {
    }
    @Override
    void run(RESTProviderConfiguration configuration, Environment environment) {
        def resource = new HelloWorldResource(template: configuration.template);
        environment.jersey().register(resource);
    }
}

@Path('/hello-world')
@Produces(MediaType.APPLICATION_JSON)
class HelloWorldResource {
    String template
    @GET
    @Timed
    String sayHello(@QueryParam('name') Optional<String> name) {
        String.format(template, name.or('John Doe'))
    }
}
new RESTProviderApplication().run(args)

服务器启动，但在Resource/Hello-World上的请求下，抛出了以下异常：

WARN  [2015-05-11 12:17:04,099] org.eclipse.jetty.servlet.ServletHandler: Error for /hello-world
! java.lang.NoSuchMethodError: javax.servlet.http.HttpServletResponse.getHeader(Ljava/lang/String;)Ljava/lang/String;
! at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:322) ~[jetty-servlets-9.2.9.v20150224.jar:9.2.9.v20150224]
! at io.dropwizard.jetty.BiDiGzipFilter.doFilter(BiDiGzipFilter.java:134) ~[dropwizard-jetty-0.8.1.jar:0.8.1]
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) ~[jetty-servlet-9.2.9.v20150224.jar:9.2.9.v20150224]
! at io.dropwizard.servlets.ThreadNameFilter.doFilter(ThreadNameFilter.java:29) ~[dropwizard-servlets-0.8.1.jar:0.8.1]
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) ~[jetty-servlet-9.2.9.v20150224.jar:9.2.9.v20150224]
! at io.dropwizard.jersey.filter.AllowedMethodsFilter.handle(AllowedMethodsFilter.java:44) ~[dropwizard-jersey-0.8.1.jar:0.8.1]
! at io.dropwizard.jersey.filter.AllowedMethodsFilter.doFilter(AllowedMethodsFilter.java:39) ~[dropwizard-jersey-0.8.1.jar:0.8.1]
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) ~[jetty-servlet-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585) [jetty-servlet-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) [jetty-servlet-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at com.codahale.metrics.jetty9.InstrumentedHandler.handle(InstrumentedHandler.java:240) [metrics-jetty9-3.1.1.jar:3.1.1]
! at io.dropwizard.jetty.RoutingHandler.handle(RoutingHandler.java:51) [dropwizard-jetty-0.8.1.jar:0.8.1]
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:95) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:159) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.Server.handle(Server.java:497) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) [jetty-io-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) [jetty-util-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) [jetty-util-9.2.9.v20150224.jar:9.2.9.v20150224]
! at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
127.0.0.1 - - [11/May/2015:12:17:04 +0000] "GET /hello-world HTTP/1.1" 500 - "-" "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Sa
fari/537.36" 22
WARN  [2015-05-11 12:17:04,104] org.eclipse.jetty.server.HttpChannel: /hello-world
! java.lang.NoSuchMethodError: javax.servlet.http.HttpServletResponse.getStatus()I
! at com.codahale.metrics.jetty9.InstrumentedHandler.updateResponses(InstrumentedHandler.java:291) ~[metrics-jetty9-3.1.1.jar:3.1.1]
! at com.codahale.metrics.jetty9.InstrumentedHandler.handle(InstrumentedHandler.java:254) ~[metrics-jetty9-3.1.1.jar:3.1.1]
! at io.dropwizard.jetty.RoutingHandler.handle(RoutingHandler.java:51) ~[dropwizard-jetty-0.8.1.jar:0.8.1]
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:95) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:159) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.Server.handle(Server.java:497) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) [jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) [jetty-io-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) [jetty-util-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) [jetty-util-9.2.9.v20150224.jar:9.2.9.v20150224]
! at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
WARN  [2015-05-11 12:17:04,105] org.eclipse.jetty.util.thread.QueuedThreadPool:
! java.lang.NoSuchMethodError: javax.servlet.http.HttpServletResponse.getStatus()I
! at org.eclipse.jetty.server.handler.ErrorHandler.handle(ErrorHandler.java:111) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.Response.sendError(Response.java:597) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpChannel.handleException(HttpChannel.java:486) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpConnection$HttpChannelOverHttp.handleException(HttpConnection.java:576) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:386) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) ~[jetty-server-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) ~[jetty-io-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) ~[jetty-util-9.2.9.v20150224.jar:9.2.9.v20150224]
! at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) ~[jetty-util-9.2.9.v20150224.jar:9.2.9.v20150224]
! at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
WARN  [2015-05-11 12:17:04,105] org.eclipse.jetty.util.thread.QueuedThreadPool: Unexpected thread death: org.eclipse.jetty.util.thread.QueuedThreadPool$3@5bdb85f9 in dw{STARTED,8<=
8<=1024,i=1,q=0}

这是因为Groovy class Path具有2.4 Servlet版本和Dropwizard 0.8.1的javax.servlet-api-api-3.1.0.jar。

您能告诉我如何首先更换槽罐或加载所需的版本吗？

我刚刚遇到了类似的问题。在我的情况下，问题是还有其他依赖性具有javax.servlet-api-2.5.0.jar，所以我有两个版本的javax.servlet-api 

mvn dependency:tree -Dincludes=*:*servlet*
mystuff:mystuff:jar:1.0-SNAPSHOT
 mystuff:rest-support:jar:2.0.0-RELEASE:compile
 |  - com.github.kongchen:swagger-maven-plugin:jar:2.3.4:compile
 |     - javax.servlet:servlet-api:jar:2.5:compile
 ...
 - mystuff:myotherstuff:jar:2.2.4:compile
    - javax.servlet:javax.servlet-api:jar:3.1.0:compile

我通过手动将其从Mystuff的Maven依赖项中手动排除了摇动弹药

来修复它。

希望有帮助

您必须在build.gradle中添加 javax.servlet-api作为具有 3.1.0的显式依赖项。

这覆盖了Groovy提供的默认值。

dependencies {
   compile group: 'javax.servlet', name: 'javax.servlet-api', version:  '3.1.0'
   ...
}

一些选项：

  • 在运行Groovy脚本之前，请使用：eval $(grape resolve -shell javax.servlet javax.servlet-api 4.0.0)
    • 将Servlet API获取到classPath中
  • 或在$GROOVY_HOMElib中删除或替换servlet-api-2.4.jar（不建议）

相关内容

  • 没有找到相关文章

最新更新


热门标签：

javascript python java c# php android html jquery c++ css ios sql mysql arrays asp.net json python-3.x ruby-on-rails .net sql-server django objective-c excel regex ruby linux ajax iphone xml vba spring asp.net-mvc database wordpress string postgresql wpf windows xcode bash git oracle list vb.net multithreading eclipse algorithm macos powershell visual-studio image forms numpy scala function api selenium