scala - xsbt-web-plugin 中的 jetty:start 和 jetty:quickstart 有什么区别

Question

我在使用 sbt 1.3.8 构建的 lift 3.3.0 上运行 scala 2.11.12 应用程序。我试过 4.0.3 和 4.2.0 的 xsbt-web-plugin。当我使用 jetty:start 时，我的应用程序启动正常，但是当我使用 jetty:quickstart 时，它无法启动 - 我在浏览器中收到 500 错误，当我在控制台中检查应用程序日志时，我看到 java.lang.NoSuchMethodError: 'int javax.servlet.http.HttpServletResponse.getStatus()' 导致码头实例返回 500。

** 编辑我在我的日志中更进一步

quickstart 的运行方式和 start 的运行方式有什么区别？我无法弄清楚问题所在。

下面是我的 build.sbt 以防万一。在此下方，我在 jetty:quickstart 中包含了请求的控制台日志，显示了我遇到的错误。我没有收到码头的这个错误：开始。

** 编辑 2 Ive jun jetty:start 然后显示更新，jetty:quickstart 然后显示更新。它们都有 javax.servlet:servlet-api:2.5:default 作为依赖项。但是 jetty:start 工作正常并启动容器，而 jetty:quickstart 无法初始化容器。我不明白为什么一个有效，一个失败——在我看来，两者都应该失败。

** 编辑 3 我知道为什么 servlet-api 2.5 会出现，并更新了 paypal 依赖项来解决这个问题。我仍然很想知道为什么 jetty:start 有效但 jetty:quickstart 没有 - 他们似乎都应该失败。

构建.sbt

name := "knot-core"

organization := "com.postrope"

version := "0.0.1"

scalaVersion := "2.11.12"

excludeFilter := HiddenFileFilter -- ".ebextensions"

resolvers ++= Seq(
  "Sonatype scala-tools releases"  at "https://oss.sonatype.org/content/repositories/releases",
  "Sonatype scala-tools snapshots" at "https://oss.sonatype.org/content/repositories/snapshots"
)

scalacOptions ++= Seq("-unchecked", "-deprecation", "-feature")

libraryDependencies ++= {
  val liftVersion = "3.3.0"
  Seq(
    "net.liftweb" %% "lift-webkit" % liftVersion % "compile",
    "net.liftweb" %% "lift-mapper" % liftVersion % "compile",
    "junit" % "junit" % "4.7" % "test",
    "ch.qos.logback" % "logback-core" % "1.0.0",
    "ch.qos.logback" % "logback-classic" % "1.0.0",
    "mysql" % "mysql-connector-java" % "8.0.19",
    "org.ccil.cowan.tagsoup" % "tagsoup" % "1.2",
    "net.liftmodules" %% "paypal_3.0" % "1.3.0",
    "com.paypal.sdk" % "adaptivepaymentssdk" % "2.6.110",
    "com.paypal.sdk" % "adaptiveaccountssdk" % "2.4.106",
    "org.apache.solr" % "solr-solrj" % "4.4.0",
    "org.imgscalr" % "imgscalr-lib" % "4.2",
    "org.jsoup" % "jsoup" % "1.7.3",
    "com.amazonaws" % "aws-java-sdk" % "1.7.3",
    "org.seleniumhq.selenium" % "selenium-java" % "3.9.1",
    "org.seleniumhq.selenium" % "selenium-chrome-driver" % "3.9.1",
    "org.scalatest" %% "scalatest" % "3.1.1" % "test",
    "net.databinder.dispatch" %% "dispatch-core" % "0.11.2",
    "net.databinder" %% "dispatch-core" % "0.8.10",
    "net.databinder" %% "dispatch-http" % "0.8.10",
    "net.databinder" %% "dispatch-oauth" % "0.8.10",
    "net.databinder" %% "dispatch-http-json" % "0.8.10"
  )
}

enablePlugins(JettyPlugin)
javaOptions in Jetty ++= Seq(
  "-Xdebug",
  "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000"
)

//jRebel class reload support

Seq(JRebelPlugin.jrebelSettings: _*)

jrebelWebLinks += (sourceDirectory in Compile).value / "webapp"

jrebelEnabled := true

javaOptions in Jetty ++= Seq(
  "-agentpath:C:\\Users\\drewb\\tools\\jrebel-2020.2.0\\lib\\jrebel64.dll",
)

码头错误：快速入门

02:03:55.221 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - REQUEST for //localhost:8080/ on HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=IDLE,uri=//localhost:8080/,age=1}
GET //localhost:8080/ HTTP/1.1
Host: localhost:8080
Connection: keep-alive
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.122 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: http://localhost:8080/
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9
Cookie: _ga=GA1.1.498072716.1587178043; _gid=GA1.1.223715266.1587738288; JSESSIONID=node01b1y37p1yogb5tgcxs7c0pofr0.node0; _gat=1


02:03:55.221 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=IDLE,uri=//localhost:8080/,age=2} onContentComplete
02:03:55.222 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=IDLE,uri=//localhost:8080/,age=3} onRequestComplete
02:03:55.222 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpInput - HttpInputOverHTTP@243824e[c=0,q=0,[0]=null,s=STREAM] addContent EOF
02:03:55.222 [qtp101874302-67] DEBUG o.e.jetty.server.HttpConnection - HttpConnection@70d9094a::SocketChannelEndPoint@7785c24d{/0:0:0:0:0:0:0:1:55305<->/0:0:0:0:0:0:0:1:8080,OPEN,fill=-,flush=-,to=19/30000}{io=0/0,kio=0,kro=1}->HttpConnection@70d9094a[p=HttpParser{s=END,0 of -1},g=HttpGenerator@43f6ae01{s=START}]=>HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=IDLE,uri=//localhost:8080/,age=3} parsed true HttpParser{s=END,0 of -1}
02:03:55.223 [qtp101874302-67] DEBUG o.e.jetty.server.HttpConnection - releaseRequestBuffer HttpConnection@70d9094a::SocketChannelEndPoint@7785c24d{/0:0:0:0:0:0:0:1:55305<->/0:0:0:0:0:0:0:1:8080,OPEN,fill=-,flush=-,to=19/30000}{io=0/0,kio=0,kro=1}->HttpConnection@70d9094a[p=HttpParser{s=END,0 of -1},g=HttpGenerator@43f6ae01{s=START}]=>HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=IDLE,uri=//localhost:8080/,age=4}
02:03:55.224 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=IDLE,uri=//localhost:8080/,age=5} handle //localhost:8080/
02:03:55.224 [qtp101874302-67] DEBUG o.e.jetty.server.HttpChannelState - handling HttpChannelState@69b6a9e2{s=IDLE a=NOT_ASYNC i=true r=IDLE w=false}
02:03:55.227 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=DISPATCHED,uri=//localhost:8080/,age=8} action DISPATCH
02:03:55.229 [qtp101874302-67] DEBUG org.eclipse.jetty.server.Server - REQUEST GET / on HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=DISPATCHED,uri=//localhost:8080/,age=10}
02:03:55.229 [qtp101874302-67] DEBUG o.e.j.server.handler.ContextHandler - scope null||/ @ o.e.j.w.WebAppContext@1a45193b{/,file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/,UNAVAILABLE}{file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/}
02:03:55.232 [qtp101874302-67] WARN  org.eclipse.jetty.server.HttpChannel - /
java.lang.NoSuchMethodError: 'int javax.servlet.http.HttpServletResponse.getStatus()'
        at org.eclipse.jetty.server.handler.ErrorHandler.doError(ErrorHandler.java:138) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ErrorHandler.handle(ErrorHandler.java:74) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.Response.sendError(Response.java:454) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.Response.sendError(Response.java:391) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandler.checkContext(ContextHandler.java:1108) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1149) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.Server.handle(Server.java:494) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:374) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:268) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:782) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:918) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
02:03:55.232 [qtp101874302-67] DEBUG o.e.jetty.server.HttpChannelState - onError HttpChannelState@69b6a9e2{s=DISPATCHED a=NOT_ASYNC i=true r=IDLE w=false} {}
02:03:55.232 [qtp101874302-67] DEBUG o.e.jetty.server.HttpChannelState - unhandle HttpChannelState@69b6a9e2{s=THROWN a=NOT_ASYNC i=true r=IDLE w=false}
02:03:55.232 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=DISPATCHED,uri=//localhost:8080/,age=13} action ERROR_DISPATCH
02:03:55.234 [qtp101874302-67] DEBUG org.eclipse.jetty.server.Server - ERROR GET / on HttpChannelOverHttp@c1f8711{r=1,c=false,c=false/false,a=DISPATCHED,uri=//localhost:8080/,age=15}
02:03:55.234 [qtp101874302-67] DEBUG o.e.j.server.handler.ContextHandler - scope null||/ @ o.e.j.w.WebAppContext@1a45193b{/,file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/,UNAVAILABLE}{file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/}
02:03:55.234 [qtp101874302-67] DEBUG o.e.j.server.handler.ContextHandler - context=||/ @ o.e.j.w.WebAppContext@1a45193b{/,file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/,UNAVAILABLE}{file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/}
02:03:55.236 [qtp101874302-67] DEBUG o.e.j.servlet.ErrorPageErrorHandler - getErrorPage(GET /) => error_page=null (from global default)
02:03:55.236 [qtp101874302-67] DEBUG o.e.j.server.handler.ErrorHandler - No Error Page mapping for request(GET /) (using default)
02:03:55.237 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - Could not perform ERROR dispatch, aborting
java.lang.NoSuchMethodError: 'int javax.servlet.http.HttpServletResponse.getStatus()'
        at org.eclipse.jetty.server.handler.ErrorHandler.doError(ErrorHandler.java:138) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ErrorHandler.handle(ErrorHandler.java:74) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.Response.sendError(Response.java:454) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.AbstractHandler.doError(AbstractHandler.java:93) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandler.__doHandle(ContextHandler.java:1301) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:42003) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:190) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1204) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.Server.handle(Server.java:494) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:429) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:268) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:782) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:918) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
02:03:55.238 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - sendResponse info=null content=HeapByteBuffer@47b52cca[p=0,l=0,c=0,r=0]={<<<>>>} complete=false committing=true callback=Blocker@4483efeb{null}
02:03:55.238 [qtp101874302-67] DEBUG org.eclipse.jetty.server.HttpChannel - COMMIT for / on HttpChannelOverHttp@c1f8711{r=1,c=true,c=false/false,a=DISPATCHED,uri=//localhost:8080/,age=19}
500 null HTTP/1.1

容器初始化错误

11:21:49.793 [main] DEBUG o.eclipse.jetty.webapp.WebAppContext - isServerClass==true class org.eclipse.jetty.annotations.ServletContainerInitializersStarter
11:21:49.793 [main] WARN  o.e.j.u.component.AbstractLifeCycle - FAILED ServletContainerInitializersStarter@285f09de{FAILED}: java.lang.NoSuchMethodError: 'javax.servlet.descriptor.JspConfigDescriptor javax.servlet.ServletContext.getJspConfigDescriptor()'
java.lang.NoSuchMethodError: 'javax.servlet.descriptor.JspConfigDescriptor javax.servlet.ServletContext.getJspConfigDescriptor()'
        at org.apache.jasper.servlet.TldScanner.scanJspConfig(TldScanner.java:158) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:102) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:101) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.plus.annotation.ContainerInitializer.callStartup(ContainerInitializer.java:141) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.annotations.ServletContainerInitializersStarter.doStart(ServletContainerInitializersStarter.java:64) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:342) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1443) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1407) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:821) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:276) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:106) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:106) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.Server.start(Server.java:407) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:106) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.server.Server.doStart(Server.java:371) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.runner.Runner.run(Runner.java:520) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
        at org.eclipse.jetty.runner.Runner.main(Runner.java:565) ~[jetty-runner-9.4.20.v20190813.jar:9.4.20.v20190813]
11:21:49.794 [main] WARN  o.eclipse.jetty.webapp.WebAppContext - Failed startup of context o.e.j.w.WebAppContext@4bd1f8dd{/,file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/,UNAVAILABLE}{file:///C:/Users/drewb/IdeaProjects/knot-alpha/src/main/webapp/

score 2 · Accepted Answer

和命令jetty:start都jetty:quickstart来自xsbt-web-plugin。请注意，这与Jetty的Quickstart Webappsjetty:quickstart功能无关。

两者的主要区别在于start构建一个完整的项目包而quickstart不是。使用quickstart，不会创建.war文件，您的类不会打包在.jar文件中，等等。

使用quickstart，Jetty 使用由 sbt 管理的项目的运行时类路径运行。使用start，Jetty 仅使用您项目的包以及它包含的.jar文件的依赖项运行。这些可能不同，因为 sbt 的运行时类路径将在provided范围内包含依赖项，而您的包不会。这就是为什么一个为你工作，而另一个不是。

你的错误：

java.lang.NoSuchMethodError: 'int javax.servlet.http.HttpServletResponse.getStatus()'

表示您的类路径上的 .jar 与 Jetty 期望的.jar之间存在版本冲突。项目的一个或多个依赖项必须对旧版本的.servlet-api servlet-api

有多种方法可以检查依赖关系树。使用 Coursier，我看到您的两个 Paypal 库都依赖于servlet-api2.5：

├─ com.paypal.sdk:adaptiveaccountssdk:2.4.106
│  └─ com.paypal.sdk:paypal-core:1.4.4
│     ├─ com.google.code.gson:gson:2.2.2 -> 2.8.2 (possible incompatibility)
│     ├─ commons-codec:commons-codec:1.6 -> 1.11 (possible incompatibility)
│     └─ javax.servlet:servlet-api:2.5
├─ com.paypal.sdk:adaptivepaymentssdk:2.6.110
│  └─ com.paypal.sdk:paypal-core:1.4.4
│     ├─ com.google.code.gson:gson:2.2.2 -> 2.8.2 (possible incompatibility)
│     ├─ commons-codec:commons-codec:1.6 -> 1.11 (possible incompatibility)
│     └─ javax.servlet:servlet-api:2.5

这需要排除，因为它对于您使用的 Jetty 版本来说太旧了。

有多种方法可以排除sbt 中的传递依赖。通过添加exclude("javax.servlet", "servlet-api")到您的两个 Paypal 依赖项，我们可以阻止冲突的版本servlet-api：

"com.paypal.sdk" % "adaptivepaymentssdk" % "2.6.110" exclude("javax.servlet", "servlet-api"),
"com.paypal.sdk" % "adaptiveaccountssdk" % "2.4.106" exclude("javax.servlet", "servlet-api"),

您还需要将最近的一个添加到provided范围，以便您的代码可以编译：

libraryDependencies += "javax.servlet" % "javax.servlet-api" % "3.0.1" % "provided"

scala - xsbt-web-plugin 中的 jetty:start 和 jetty:quickstart 有什么区别

1 回答 1

Related

Reference