本来准备按部就班的一章一章更新Drools相关教程，怎奈QQ群组（593177274）有朋友急需Springboot与Drools的集成demo，于是抽出时间写了一个，现在拿出来分享一下。加入群组可免费下载demo，也可以在CSDN下载频道下载：Springboot&Drools demo
pom文件
引入了springboot和drools的依赖，同时引入了kie-spring的集成依赖。
<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.kie</groupId> <artifactId>kie-spring</artifactId> <version>${drools.version}</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> </exclusion> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> </exclusion> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> </exclusion> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.drools</groupId> <artifactId>drools-compiler</artifactId> <version>${drools.version}</version> </dependency> </dependencies>
配置类
基于springboot的初始化配置：
@Configuration public class DroolsAutoConfiguration { private static final String RULES_PATH = "rules/"; @Bean @ConditionalOnMissingBean(KieFileSystem.class) public KieFileSystem kieFileSystem() throws IOException { KieFileSystem kieFileSystem = getKieServices().newKieFileSystem(); for (Resource file : getRuleFiles()) { kieFileSystem.write(ResourceFactory.newClassPathResource(RULES_PATH + file.getFilename(), "UTF-8")); } return kieFileSystem; } private Resource[] getRuleFiles() throws IOException { ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver(); return resourcePatternResolver.getResources("classpath*:" + RULES_PATH + "**/*.*"); } @Bean @ConditionalOnMissingBean(KieContainer.class) public KieContainer kieContainer() throws IOException { final KieRepository kieRepository = getKieServices().getRepository(); kieRepository.addKieModule(new KieModule() { public ReleaseId getReleaseId() { return kieRepository.getDefaultReleaseId(); } }); KieBuilder kieBuilder = getKieServices().newKieBuilder(kieFileSystem()); kieBuilder.buildAll(); return getKieServices().newKieContainer(kieRepository.getDefaultReleaseId()); } private KieServices getKieServices() { return KieServices.Factory.get(); } @Bean @ConditionalOnMissingBean(KieBase.class) public KieBase kieBase() throws IOException { return kieContainer().getKieBase(); } @Bean @ConditionalOnMissingBean(KieSession.class) public KieSession kieSession() throws IOException { return kieContainer().newKieSession(); } @Bean @ConditionalOnMissingBean(KModuleBeanFactoryPostProcessor.class) public KModuleBeanFactoryPostProcessor kiePostProcessor() { return new KModuleBeanFactoryPostProcessor(); } }
Springboot启动类
@SpringBootApplication
public class SpringBootDroolsApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootDroolsApplication.class, args);
}
}
实体类
public class Address { private String postcode; private String street; private String state; // 省略getter/setter }
规则返回结果类
public class AddressCheckResult {
private boolean postCodeResult = false; // true:通过校验；false：未通过校验
// 省略getter/setter
}
规则文件
package plausibcheck.adress import com.secbro.model.Address; import com.secbro.model.fact.AddressCheckResult; rule "Postcode should be filled with exactly 5 numbers" when address : Address(postcode != null, postcode matches "([0-9]{5})") checkResult : AddressCheckResult(); then checkResult.setPostCodeResult(true); System.out.println("规则中打印日志：校验通过!"); end
测试Controller
@RequestMapping("/test") @Controller public class TestController { @Resource private KieSession kieSession; @ResponseBody @RequestMapping("/address") public void test(){ Address address = new Address(); address.setPostcode("99425"); AddressCheckResult result = new AddressCheckResult(); kieSession.insert(address); kieSession.insert(result); int ruleFiredCount = kieSession.fireAllRules(); System.out.println("触发了" + ruleFiredCount + "条规则"); if(result.isPostCodeResult()){ System.out.println("规则校验通过"); } } }
启动Springboot项目之后，默认访问http://localhost:8080/test/address 即可。
Drools技术视频
CSDN学院：《Drools7规则引擎进阶教程》
CSDN学院：《Drools7规则引擎入门教程》
CSDN学院：《Drools7系列优惠套餐》
