Spring如何整合规则语言Drools详解编程语言

一.<beans>加入drools的命名空间

http://drools.org/schema/drools-spring http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-container/drools-spring/src/main/resources/org/drools/container/spring/drools-spring-1.0.0.xsd


二.增加jar包库

drools-spring jar


三.spring 配置文件声明KnowledgeBase 配置文件

<drools:kbase id=”kBase”>

  <drools:resources>

   <!–drools:resource type=”规则文件类型” source=”规则文件” –>

   <drools:resource type=”DRL” source=”classpath:com/demo/insert.drl” />

  </drools:resources>

  <!– drools:configuration> <drools:mbeans enabled=”true” /> <drools:event-processing-mode

   mode=”STREAM” /> </drools:configuration –>

</drools:kbase>


四.声明与规则引擎进行交互session.配置

StatelessKnowledgeSession在spring内配置

<drools:ksession id=”ksession1″ type=”stateless” name=”stateless1″ kbase=”kBase” />

StatefulKnowledgeSession在spring内配置

<drools:ksession id=”session” type=”stateful” kbase=”kBase” />


五.程序代码实例测试

  ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(

    new String[] { “com/demo/spring/mydrools.xml” });

  StatefulKnowledgeSession session = (StatefulKnowledgeSession) context

    .getBean(“session”);

  session.fireAllRules();

  session.dispose();

  System.out.println(“end”);

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