我想将Drools与Spring Boot一起用于Bean验证,但我已将问题缩小到以下几行代码:
主班
@SpringBootApplication
public class App {
public static void main(String[] args) {
//SpringApplication.run(App.class, args);
check();
}
public static void check() {
// load up the knowledge base
KieServices ks = KieServices.Factory.get();
KieContainer kContainer = ks.getKieClasspathContainer();
KieSession kSession = kContainer.newKieSession("ksession-rules");
//go
Patient patient = new Patient("Hans", "Mueller");
kSession.insert(patient);
kSession.fireAllRules();
}
}
Patient
是仅具有id,名字和姓氏的实体,带有getter和setter。kmodule.xml
<?xml version="1.0" encoding="UTF-8"?>
<kmodule xmlns="http://jboss.org/kie/6.0.0/kmodule">
<kbase name="rules" packages="rules">
<ksession name="ksession-rules"/>
</kbase>
</kmodule>
和两个规则
package com.sample
import com.sample.Patient;
rule "Test"
when
eval(1 == 1)
then
System.out.println("This rule is always fired");
end
rule "Patient"
when
exists Patient()
then
System.out.println("Patient found");
end
当不调用
SpringApplication.run(App.class, args)
时(如上),一切正常:15:50:12.730 [main] DEBUG org.drools.core.impl.KnowledgeBaseImpl - Starting Engine in PHREAK mode
15:50:12.820 [main] DEBUG org.drools.core.common.DefaultAgenda - State was INACTIVE is nw FIRING_ALL_RULES
15:50:12.821 [main] DEBUG org.drools.core.common.DefaultAgenda - Fire Loop
This rule is always fired
15:50:12.827 [main] DEBUG org.drools.core.common.DefaultAgenda - Fire Loop
Patient found
15:50:12.827 [main] DEBUG org.drools.core.common.DefaultAgenda - Fire Loop
15:50:12.827 [main] DEBUG org.drools.core.common.DefaultAgenda - State was FIRING_ALL_RULES is nw HALTING
15:50:12.827 [main] DEBUG org.drools.core.common.DefaultAgenda - State was HALTING is nw INACTIVE
但是,当我在主目录中添加
SpringApplication.run(App.class, args)
时,只会触发一个规则:This rule is always fired
甚至
org.drools.core.common.DefaultAgenda
的日志记录也不再可见。我不知道怎么了?我期望两种情况下的输出相同。 SpringBoot在后台执行某些操作吗?
最佳答案
对于每个有相同问题并阅读我的问题的人:
我还没有直接解决它,但是问题与netbeans有关。通过命令行启动应用程序时,一切正常。所以这是要走的路。
关于java - Drools无法与Spring Boot一起正常工作,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/39898186/