drool-6.5的自学demo

先丢代码地址

https://gitee.com/a247292980/drools

再丢pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.yy</groupId>
  <artifactId>drools</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>drools Maven Webapp</name>
  <url>http://maven.apache.org</url>
  
  <properties>
    <runtime.version>6.5.0.Final</runtime.version>
  </properties>

  <repositories>
    <repository>
      <id>jboss-public-repository-group</id>
      <name>JBoss Public Repository Group</name>
      <url>http://repository.jboss.org/nexus/content/groups/public/</url>
      <releases>
        <enabled>true</enabled>
        <updatePolicy>never</updatePolicy>
      </releases>
      <snapshots>
        <enabled>true</enabled>
        <updatePolicy>daily</updatePolicy>
      </snapshots>
    </repository>
  </repositories>

  <dependencies>
    <dependency>
      <groupId>org.kie</groupId>
      <artifactId>kie-api</artifactId>
      <version>${runtime.version}</version>
    </dependency>
    <dependency>
      <groupId>org.drools</groupId>
      <artifactId>drools-core</artifactId>
      <version>${runtime.version}</version>
    </dependency>
    <dependency>
      <groupId>org.drools</groupId>
      <artifactId>drools-decisiontables</artifactId>
      <version>${runtime.version}</version>
    </dependency>

    <dependency>
      <groupId>org.jbpm</groupId>
      <artifactId>jbpm-test</artifactId>
      <version>${runtime.version}</version>
    </dependency>

	<dependency>
	    <groupId>junit</groupId>
	    <artifactId>junit</artifactId>
	    <version>4.12</version>
	</dependency>

  </dependencies>
</project>

 最后丢目录结构

老规矩要说的基本都在注释里面，想看的去看源码就好了，只说几个重要的

Message

pojo类

DecisionTableTest

drools使用xxx.xls的例子

public class DecisionTableTest {

    public static final void main(String[] args) {
        try {
            // load up the knowledge base
	        KieServices ks = KieServices.Factory.get();
    	    KieContainer kContainer = ks.getKieClasspathContainer();
//    	    写名字则取相应的ksession下的东西
//        	KieSession kSession = kContainer.newKieSession("ksession-dtables");
//            不写名字则全取了
        	KieSession kSession = kContainer.newKieSession();

            // go !
            Message message = new Message();
            message.setMessage("Hello World");
            message.setStatus(Message.HELLO);
            kSession.insert(message);
            kSession.fireAllRules();
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }


}

 DroolsTest

drools操作xxxx.drl的例子

public class DroolsTest  {

    public static final void main(String[] args) {
        try {
            // load up the knowledge base
            KieServices ks = KieServices.Factory.get();
            KieContainer kContainer = ks.getKieClasspathContainer();
            KieSession kSession = kContainer.newKieSession("ksession-rules");

            // go !
            Message message = new Message();
            message.setMessage("Hello World");
            message.setStatus(Message.HELLO);

            kSession.insert(message);
            kSession.fireAllRules();
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }

}

 ProcessTest

drools操作xxxx.bpmn的例子

public class ProcessTest {

    public static final void main(String[] args) {
        try {
            // load up the knowledge base
            KieServices ks = KieServices.Factory.get();
            KieContainer kContainer = ks.getKieClasspathContainer();
            KieSession kSession = kContainer.newKieSession("ksession-process");

            // start a new process instance
            kSession.startProcess("com.sample.bpmn.hello");
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }

}

StatelessTest

用来区分StatelessKieSession和KieSession

public class StatelessTest {
    protected KieServices kieServices;

    protected KieContainer kieContainer;

    protected KieSession kieSession;
    protected StatelessKieSession statelessKieSession;

    @Before
    public void init() {
//从Factory得到Services
        kieServices = KieServices.Factory.get();
//        在类路径中找到的所有DRL文件
        kieContainer = kieServices.getKieClasspathContainer();
//得到kmodule的ksession
        kieSession = kieContainer.newKieSession("ksession-rules");
//stateless必须注释kmodule里全部的kbase
//		statelessKieSession=kieContainer.newStatelessKieSession();
    }

    //kieSession和statelessKieSession的调用是不一样的
    @Test
    public void testKieSession() {
        Message message = new Message();
        message.setMessage("Hello World");
        message.setStatus(Message.HELLO);

        kieSession.insert(message);
        kieSession.fireAllRules();
    }

    @Test
    public void testStatelessKieSession() {
        Message message = new Message();
        message.setMessage("Hello World");
        message.setStatus(Message.HELLO);

        statelessKieSession.execute(message);

    }
}

 kmodule.xml

<?xml version="1.0" encoding="UTF-8"?>
<kmodule xmlns="http://www.drools.org/xsd/kmodule">
    <!--<kmodule xmlns="http://jboss.org/kie/6.0.0/kmodule">-->
    <!--name kbase的唯一标志
    packages 路径必须正确可少写可多写可不写
    不写的话放于根目录（不建议）
    ksession 的唯一标记-->
    <!--<kbase name="rules" packages="Drools.rules">-->
    <kbase name="rules" packages="rules">
        <!--<kbase name="rules" packages="">-->
        <!--<kbase name="rules" packages="myrules">-->
        <!--默认用最后一个-->
        <!--<kbase name="rules" packages="rules,myrules">-->
        <ksession name="ksession-rules"/>
    </kbase>


    <kbase name="dtables" packages="dtables">
        <ksession name="ksession-dtables"/>
    </kbase>
    <kbase name="process" packages="process">
        <ksession name="ksession-process"/>
    </kbase>
</kmodule>