Question

当我尝试在正常的sbt项目而不是播放项目中使用Play WS库时，我必然会使用play.api.Play.current并获得 java.lang.RuntimeException：＆＃34;尝试运行应用程序时没有启动应用程序＆＃34; 。

Answer 1

2.4.x中的用法

import play.api.libs.ws.ning.NingWSClient   

val wsClient = NingWSClient()
wsClient.url("http://wwww.something.com").get()

build.sbt：

libraryDependencies += "com.typesafe.play" %% "play-ws" % "2.4.3"

2.5.x中的用法

import play.api.libs.ws.ahc.AhcWSClient

implicit val actorSystem = ActorSystem()
implicit val materializer = ActorMaterializer()
wsClient.url("http://wwww.something.com").get()

//at the very end, to shutdown stuff cleanly :
wsClient.close()
actorSystem.terminate()

build.sbt：

libraryDependencies += "com.typesafe.play" %% "play-ws" % "2.5.4"

日志

正如评论中提到的那样，默认情况下，您可能会收到一堆来自底层async-http-client的详细日志。解决此问题的一种方法是开始配置 logback.xml ，并将其放在 src / main / resources

中

<configuration>

<conversionRule conversionWord="coloredLevel" converterClass="play.api.Logger$ColoredLevel" />

<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
        <!-- The logging pattern, you might want to adapt it -->
        <pattern>%d %coloredLevel %t - %logger - %message%n%xException</pattern>
    </encoder>
</appender>

<!-- Here you can change the levels of specific loggers -->
<logger name="somelogger" level="INFO" />

<!-- Default logging level for every logger -->
<root level="ERROR">
    <appender-ref ref="STDOUT" />
</root>

</configuration>

Answer 2

要在游戏之外使用play-ws，请参阅＆＃34;使用WSClient＆＃34;文档部分：http://www.playframework.com/documentation/2.3.x/ScalaWS

val builder = new com.ning.http.client.AsyncHttpClientConfig.Builder()
val client = new play.api.libs.ws.ning.NingWSClient(builder.build())
val response = client.url(url).get()

我如何在正常的sbt项目中使用play ws库而不是play？

2 个答案:

2.4.x中的用法

2.5.x中的用法

日志