我尝试使用以下代码从Guvnor加载包: -
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("GenderFact.xml"),ResourceType.CHANGE_SET);
System.out.println("fair trial");
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (errors.size() > 0) {
for (KnowledgeBuilderError error: errors) {
System.err.println(error);
}
throw new IllegalArgumentException("Could not parse knowledge.");
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
return kbase;
并且GenderFact.xml的内容是: -
<change-set xmlns="http://drools.org/drools-5.0/change-set"
xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
xs:schemaLocation="http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd">
<add>
<resource
source="http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/MyLastTrial/LATEST/"
type="PKG" basicAuthentication="disabled" username="admin" password="admin" />
</add>
当我尝试从Eclipse执行此操作时,出现以下错误: -
java.lang.RuntimeException:java.io.InvalidClassException:org.drools.rule.MVELDialectRuntimeData;本地类不兼容:stream classdesc serialVersionUID = 5166066541265170937,本地类serialVersionUID = -64624826351992706 at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:705) at org.drools.compiler.PackageBuilder.addPackageFromChangeSet(PackageBuilder.java:772) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:694) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:45) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:34) 在com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:43) 在com.sample.DroolsTest.main(DroolsTest.java:26) 引起:java.io.InvalidClassException:org.drools.rule.MVELDialectRuntimeData;本地类不兼容:stream classdesc serialVersionUID = 5166066541265170937,本地类serialVersionUID = -64624826351992706 at java.io.ObjectStreamClass.initNonProxy(Unknown Source) at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) at java.io.ObjectInputStream.readClassDesc(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) 在java.util.HashMap.readObject(未知来源) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.drools.rule.DialectRuntimeRegistry.readExternal(DialectRuntimeRegistry.java:59) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.drools.rule.Package.readExternal(Package.java:208) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) 在org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:205) 在org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189) at org.drools.compiler.PackageBuilder.addPackageFromInputStream(PackageBuilder.java:781) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:692) ......还有6个
前提条件: -
要求解决方法......
答案 0 :(得分:4)
在java项目中使用的Drools相关jar与GUvnor 5.3中使用的版本不同。 使用Guvnor 5.3中的jar到你的java项目中。 它会解决问题。 :)