如何测试Spring Boot中的Drools规则

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筋斗云
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要在Spring Boot中测试Drools规则,你需要遵循以下步骤:

  1. 添加依赖项 确保你的项目中包含了以下依赖项:
   <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter</artifactId> </dependency><dependency>    <groupId>org.drools</groupId>    <artifactId>drools-compiler</artifactId>    <version>7.59.0.Final</version> </dependency><dependency>    <groupId>org.drools</groupId>    <artifactId>drools-decisiontables</artifactId>    <version>7.59.0.Final</version> </dependency><dependency>    <groupId>org.kie</groupId>    <artifactId>kie-spring</artifactId>    <version>7.59.0.Final</version> </dependency> 
  1. 创建Drools规则文件 在src/main/resources目录下创建一个名为rules的文件夹。在此文件夹中,创建一个名为sampleRule.drl的文件,并添加以下内容:
package com.example.drools  rule "Sample Rule" when     $person: Person(age < 18) then     System.out.println("Person is under 18 years old."); end 
  1. 创建实体类 在com.example.drools包中创建一个名为Person的Java类,并添加以下内容:
public class Person {     private String name;     private int age;      // Getters and setters } 
  1. 配置Drools 在com.example.drools包中创建一个名为DroolsConfig的Java类,并添加以下内容:
import org.kie.api.KieBase; import org.kie.api.KieServices; import org.kie.api.builder.KieBuilder; import org.kie.api.builder.KieFileSystem; import org.kie.api.builder.KieRepository; import org.kie.api.runtime.KieContainer; import org.kie.api.runtime.KieSession; import org.kie.internal.io.ResourceFactory; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration;  @Configuration public class DroolsConfig {     @Bean     public KieBase kieBase() {         KieServices kieServices = KieServices.Factory.get();         KieRepository kieRepository = kieServices.getRepository();         KieFileSystem kieFileSystem = kieServices.newKieFileSystem();         kieFileSystem.write(ResourceFactory.newClassPathResource("rules/sampleRule.drl"));         KieBuilder kieBuilder = kieServices.newKieBuilder(kieFileSystem);         kieBuilder.buildAll();         KieContainer kieContainer = kieServices.newKieContainer(kieRepository.getDefaultReleaseId());         return kieContainer.getKieBase();     }      @Bean     public KieSession kieSession() {         return kieBase().newKieSession();     } } 
  1. 编写测试用例 在com.example.drools包中创建一个名为DroolsTest的Java类,并添加以下内容:
import org.junit.jupiter.api.Test; import org.kie.api.runtime.KieSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest;  import static org.junit.jupiter.api.Assertions.*;  @SpringBootTest class DroolsTest {     @Autowired     private KieSession kieSession;      @Test     void testSampleRule() {         Person person = new Person();         person.setName("John Doe");         person.setAge(16);          kieSession.insert(person);         int rulesFired = kieSession.fireAllRules();          assertEquals(1, rulesFired);     } } 

现在,你可以运行DroolsTest类中的测试用例来测试Drools规则。如果规则被正确触发,测试将通过。

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