我的目录中有一个配置文件servers.conf,conf/只要路由/servers被命中,我的ServerController就会读取该配置文件.这不具备性能,因为当文件不会更改时,它需要在每次连续命中时重新读取配置文件.此外,如果配置文件有问题,我可以尽快告诉用户,而不是在页面命中时抛出异常.
目前我在我的这个ServerController.scala:
case class Server(ip: String, port: String)
/**
* This controller creates an `Action` to handle HTTP requests to the
* application's server page.
*/
@Singleton
class ServerController @Inject() extends Controller {
/**
* Create an Action to render an HTML page with a the list of servers.
* The configuration in the `routes` file means that this method
* will be called when the application receives a `GET` request with …Play 2.5.0使用Netty 4.0.33,而gRPC需要Netty 4.1.0(支持http2),这会导致以下异常:
[error] p.c.s.n.PlayRequestHandler - Exception caught in Netty
java.lang.AbstractMethodError: null
at io.netty.util.ReferenceCountUtil.touch(ReferenceCountUtil.java:73)
at io.netty.channel.DefaultChannelPipeline.touch(DefaultChannelPipeline.java:84)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:154)
at com.typesafe.netty.http.HttpStreamsHandler.channelRead(HttpStreamsHandler.java:131)
at com.typesafe.netty.http.HttpStreamsServerHandler.channelRead(HttpStreamsServerHandler.java:96)
at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:83)
at io.netty.channel.DefaultChannelHandlerInvoker.invokeChannelRead(DefaultChannelHandlerInvoker.java:154)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:154)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:83)
[error] p.c.s.n.PlayRequestHandler - Exception caught in Netty
java.util.NoSuchElementException: http-handler-body-publisher
at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1050)
at io.netty.channel.DefaultChannelPipeline.remove(DefaultChannelPipeline.java:379)
at com.typesafe.netty.http.HttpStreamsHandler.handleReadHttpContent(HttpStreamsHandler.java:191)
at com.typesafe.netty.http.HttpStreamsHandler.channelRead(HttpStreamsHandler.java:167)
at com.typesafe.netty.http.HttpStreamsServerHandler.channelRead(HttpStreamsServerHandler.java:96)
at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:83)
at io.netty.channel.DefaultChannelHandlerInvoker.invokeChannelRead(DefaultChannelHandlerInvoker.java:154)
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:154)
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:83)
删除所有gRPC代码后,它再次起作用.
我现在可以尝试一下快速修复吗？谢谢!