[英]Scala JSR223 script using JMeter/Java context
e.eval("""s"a is $a, s is $s"""")
我添加了 Scala 2.13 jars 並嘗試執行腳本,它可以顯示常量作為響應
但我無法將 JMeter 的綁定變量添加為log
,我嘗試過:
log.info(a);
$log.info(a);
或者不能打印值來記錄,也試過
var a:Int = 10
println(a)
JMeter 的綁定代碼:
Bindings bindings = engine.createBindings(); final Logger logger = LoggerFactory.getLogger(JSR223_INIT_FILE); bindings.put("log", logger); // $NON-NLS-1$ (this name is fixed) engine.eval(reader, bindings);
也嘗試使用綁定,但它不在上下文中
bindings.get("log").info("aa");
例外
ERROR o.a.j.p.j.s.JSR223Sampler: Problem in JSR223 script JSR223 Sampler, message: javax.script.ScriptException: not found: value bindings
如何使用 JMeter/Java 綁定變量提交 Scala JSR223 腳本?
編輯
Open Scala 問題JSR223 - 引擎忽略綁定參數
問題的核心是 Scala 腳本引擎將注入的綁定視為具有Any
類型。 要使用注入的綁定,您必須在每次使用時將它們轉換為適當的類型,或者您需要將它們作為“陰影綁定”注入,然后使用適當的類型在引擎中重新綁定。
這是我的Main.scala
,我在其中演示了后一種方法:
import javax.script.ScriptEngineManager
import org.slf4j.Logger
import org.slf4j.LoggerFactory
object Main extends App {
val logger: Logger = LoggerFactory.getLogger("main")
val e = new ScriptEngineManager().getEngineByName("scala")
e.put("a", 1)
e.put("s", "String")
// Since the variable will have a type of Object, inject under a different name, and then bind to the
// "correct" name using eval.
e.put("logInjected", logger)
println(e.eval(""" s"a is $a, s is $s" """))
println(e.eval(""" logInjected.toString """))
e.eval(""" val log = logInjected.asInstanceOf[org.slf4j.Logger] """)
e.eval(""" log.info("hello from injected logger") """)
e.eval(
""" // Or can you do this
| import org.slf4j.Logger
| import org.slf4j.LoggerFactory
|
| val l = LoggerFactory.getLogger("script")
|
| l.error("hello from script")
|
|""".stripMargin)
}
而我的build.sbt
我曾經:
name := "s213"
version := "1.0"
scalaVersion in ThisBuild := "2.13.0"
libraryDependencies += "org.scala-lang" % "scala-compiler" % scalaVersion.value
libraryDependencies += "org.scala-lang" % "scala-reflect" % scalaVersion.value
libraryDependencies += "ch.qos.logback" % "logback-classic" % "1.3.0-alpha4"
libraryDependencies += "org.slf4j" % "slf4j-api" % "2.0.0-alpha0"
運行Main
的輸出將是:
a is 1, s is String
Logger[main]
[main] INFO main - hello from injected logger
[main] ERROR script - hello from script
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