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我用pullXml由於文件的大小是相當大的，> 100M，我寫了一個示例程序如下：運行秤XML的pullXml在WebLogic服務器
object TestXml {
val mc = new java.math.MathContext(1024)
val zero = BigDecimal(0, mc)
def calculate(infile: String, encoding: String): BigDecimal = {
val inStream = new FileInputStream(infile)
val pull = pullXml(new InputSource(new InputStreamReader(inStream, encoding)))
val ns = Namespace("urn:abcaus.onair.sintecmedia.com")
val qnames = List(ns("ePGResp"), "EPGResponse"l, "Event"l)
def eventStream = iterate(qnames, pull).toStream
var count = zero
eventStream foreach { event => count += eventId(event) }
inStream.close
count
}
def eventId(event: XmlPath): Long =
text(event.\*("EventID")).toLong
def main(args: Array[String]): Unit = args.toList match {
case infile :: encoding :: Nil => println(calculate(infile, encoding))
case _ => println("usage scala -cp classpath au.net.abc.epg.TestLoadXml infile encoding")
}
}
我在命令行中運行該程序如下：
$JAVA_HOME/bin/java -cp JarContainsSampleProgram.jar:scala-library-2.10.2.jar:scala-reflect-2.10.2.jar:scalalogging-slf4j_2.10-1.0.1.jar:scalaz-core_2.10-7.0.0.jar:scalaz-effect_2.10-7.0.0.jar:scalaz-iterv_2.10-7.0.0.jar:scales-xml_2.10-0.6.0-M1.jar:slf4j-api-1.6.4.jar TestLoadXml /home/wonga4d/EPG/Huge.xml utf-16
它運行成功返回一個值，也就是說，879452677392.
然而，當我部署它作爲Oracle服務總線的Java標註（這是確定的，因爲Scala是JVM郎）通過使用一個OSB代理，仍然使用相同的輸入文件和編碼，我得到了以下錯誤
Callout to java method "public static scala.math.BigDecimal au.net.abc.epg.TestLoadXml.calculate(java.lang.String,java.lang.String)" resulted in exception: Got an event (Text()) that should not be in the prolog java.lang.RuntimeException: Got an event (Text()) that should not be in the prolog
at scala.sys.package$.error(package.scala:27)
at scala.Predef$.error(Predef.scala:142)
at scales.utils.package$.error(package.scala:19)
at scales.xml.parser.pull.PullUtils$$anonfun$getMisc$1.apply(PullIterator.scala:144)
at scales.xml.parser.pull.PullUtils$$anonfun$getMisc$1.apply(PullIterator.scala:141)
at scala.util.Either.fold(Either.scala:97)
at scales.xml.parser.pull.PullUtils$.getMisc(PullIterator.scala:141)
at scales.xml.parser.pull.XmlPull$class.start(PullIterator.scala:89)
at scales.xml.parser.pull.XmlPulls$$anon$1.start(XmlPull.scala:134)
at scales.xml.parser.pull.XmlPulls$$anon$1.<init>(XmlPull.scala:156)
at scales.xml.parser.pull.XmlPulls$class.pullXml(XmlPull.scala:134)
at scales.xml.package$.pullXml(package.scala:7)
at TestXml$.calculate(TestLoadXml.scala:23)
at TestXml.calculate(TestLoadXml.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at stages.transform.runtime.JavaCalloutRuntimeStep$1.run(JavaCalloutRuntimeStep.java:173)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
at weblogic.security.Security.runAs(Security.java:61)
at stages.transform.runtime.JavaCalloutRuntimeStep.processMessage(JavaCalloutRuntimeStep.java:195)
at com.bea.wli.sb.pipeline.debug.DebuggerRuntimeStep.processMessage(DebuggerRuntimeStep.java:74)
at com.bea.wli.sb.stages.StageMetadataImpl$WrapperRuntimeStep.processMessage(StageMetadataImpl.java:346)
at com.bea.wli.sb.pipeline.PipelineStage.processMessage(PipelineStage.java:84)
它未能在pullXml。但是，當我在之前展示的命令行上運行時，它總是成功。如果我不使用pullXml，但使用loadXml，即使在weblogic服務器中運行，它也會始終成功。但是如果加載一個巨大的xml文件，loadXml會出現問題。 pullXml & loadXml方法位於同一個jar中，scales-xml_2.10-0.6.0-M1.jar。
只是想知道是否有人在weblogic服務器中使用scale xml。聽起來像我放棄了使用scale xml如果weblogic服務器是執行環境。
謝謝