springboot 2.x 集成 drools 7.x

简介：springboot 2.0.4.RELEASE 集成 drools 7.11.0.Final

1.项目结构

在这里插入图片描述

2. pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>AllTest</artifactId>
        <groupId>com.lcc</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>drools_springboot<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>properties</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>drools.version</span><span class="token punctuation">&gt;</span></span>7.11.0.Final<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>drools.version</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>spring.boot.version</span><span class="token punctuation">&gt;</span></span>2.0.4.RELEASE<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>spring.boot.version</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>properties</span><span class="token punctuation">&gt;</span></span>


<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependencies</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.springframework.boot<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>spring-boot-starter-web<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">&gt;</span></span>${spring.boot.version}<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.springframework.boot<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>spring-boot-autoconfigure<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">&gt;</span></span>${spring.boot.version}<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">&gt;</span></span>


    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.kie<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>kie-spring<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">&gt;</span></span>${drools.version}<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>exclusions</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>exclusion</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.springframework<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>spring-tx<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>exclusion</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>exclusion</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.springframework<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>spring-beans<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>exclusion</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>exclusion</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.springframework<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>spring-core<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>exclusion</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>exclusion</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.springframework<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
                <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>spring-context<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
            <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>exclusion</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>exclusions</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.drools<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>drools-compiler<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">&gt;</span></span>${drools.version}<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">&gt;</span></span>


    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>dependency</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>groupId</span><span class="token punctuation">&gt;</span></span>org.projectlombok<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>groupId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>artifactId</span><span class="token punctuation">&gt;</span></span>lombok<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>artifactId</span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>version</span><span class="token punctuation">&gt;</span></span>1.12.6<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>version</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependency</span><span class="token punctuation">&gt;</span></span>

<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>dependencies</span><span class="token punctuation">&gt;</span></span>



</project>

3.配置类

基于springboot的初始化配置：

package com.drools.spring;

import org.kie.api.KieBase;

import org.kie.api.KieServices;

import org.kie.api.builder.*;

import org.kie.api.runtime.KieContainer;

import org.kie.api.runtime.KieSession;

import org.kie.internal.io.ResourceFactory;

import org.kie.spring.KModuleBeanFactoryPostProcessor;

import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.core.io.Resource;

import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import org.springframework.core.io.support.ResourcePatternResolver;


import java.io.IOException;


/**


    

  • 

    Created by lcc on 2018/9/27.
    
*/
    
@Configuration
    
public class DroolsAutoConfiguration {
    

    /** 特别要注意 rule的存放位置  */
    
private static final String RULES_PATH = "rules/";
    

    @Bean
    
@ConditionalOnMissingBean(KieFileSystem.class)
    
public KieFileSystem kieFileSystem() throws IOException {
    
KieFileSystem kieFileSystem = getKieServices().newKieFileSystem();
    
for (Resource file : getRuleFiles()) {
    
String path = RULES_PATH + file.getFilename();
    
kieFileSystem.write(ResourceFactory.newClassPathResource(path, "UTF-8"));
    
}
    
return kieFileSystem;
    
}
    

    /**
    

      

    • 这里要引入 org.springframework.core.io.Resource  包
      • 

    • 

    • @return
      • 

    • @throws IOException
      
/
      
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<span class="token punctuation">.</span><span class="token function">addKieModule</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">KieModule</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
     <span class="token keyword">public</span> ReleaseId <span class="token function">getReleaseId</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
         <span class="token keyword">return</span> kieRepository<span class="token punctuation">.</span><span class="token function">getDefaultReleaseId</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
     <span class="token punctuation">}</span>
 <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

 KieBuilder kieBuilder <span class="token operator">=</span> <span class="token function">getKieServices</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">newKieBuilder</span><span class="token punctuation">(</span><span class="token function">kieFileSystem</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
 kieBuilder<span class="token punctuation">.</span><span class="token function">buildAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

 <span class="token keyword">return</span> <span class="token function">getKieServices</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">newKieContainer</span><span class="token punctuation">(</span>kieRepository<span class="token punctuation">.</span><span class="token function">getDefaultReleaseId</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

    

    }
    

    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();
    
}
    
}
    

    •

4.Springboot启动类

package com.drools.spring;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;


/**


    

  • 

    Created by lcc on 2018/9/27.
    
*/
    
@SpringBootApplication
    
public class SpringBootDroolsApplication {
    

    public static void main(String[] args) {
    
SpringApplication.run(SpringBootDroolsApplication.class, args);
    
}
    
}
    

    •

5.实体类

package com.drools.spring.entity;

import lombok.Data;


/**


    

  • 

    Created by lcc on 2018/9/27.
    
*/
    
@Data
    
public class Address {
    

    private String postcode;
    

    private String street;
    

    private String state;
    

    • 



}

6.规则返回结果类

package com.drools.spring.entity;

import lombok.Data;


/**


    

  • 

    Created by lcc on 2018/9/27.
    
*/
    
@Data
    
public class AddressCheckResult {
    

    private boolean postCodeResult = false; // true:通过校验；false：未通过校验
    
}

7.规则文件

注意存放的位置

package com.rules

import com.drools.spring.entity.Address;

import com.drools.spring.entity.AddressCheckResult;


rule "Postcode should be filled with exactly 5 numbers"


when
    address <span class="token operator">:</span> <span class="token function">Address</span><span class="token punctuation">(</span>postcode <span class="token operator">!=</span> null<span class="token punctuation">,</span> postcode matches <span class="token string">"([0-9]{5})"</span><span class="token punctuation">)</span>
    checkResult <span class="token operator">:</span> <span class="token function">AddressCheckResult</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
then
    checkResult<span class="token punctuation">.</span><span class="token function">setPostCodeResult</span><span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"规则中打印日志：校验通过!"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>



end

8.规则文件kmodule

<?xml version="1.0" encoding="UTF-8" ?>
<kmodule xmlns="http://www.drools.org/xsd/kmodule">
    <kbase name="rules" packages="com.rules">
        <ksession name="ksession-rule"/>
    </kbase>
</kmodule>

9.测试Controller

package com.drools.spring.controller;

import com.drools.spring.entity.Address;

import com.drools.spring.entity.AddressCheckResult;

import org.kie.api.runtime.KieSession;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.ResponseBody;


import javax.annotation.Resource;


/**


    

  • 

    Created by lcc on 2018/9/27.
    
*/
    
@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 <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">AddressCheckResult</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
 kieSession<span class="token punctuation">.</span><span class="token function">insert</span><span class="token punctuation">(</span>address<span class="token punctuation">)</span><span class="token punctuation">;</span>
 kieSession<span class="token punctuation">.</span><span class="token function">insert</span><span class="token punctuation">(</span>result<span class="token punctuation">)</span><span class="token punctuation">;</span>
 <span class="token keyword">int</span> ruleFiredCount <span class="token operator">=</span> kieSession<span class="token punctuation">.</span><span class="token function">fireAllRules</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
 System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"触发了"</span> <span class="token operator">+</span> ruleFiredCount <span class="token operator">+</span> <span class="token string">"条规则"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

 <span class="token keyword">if</span><span class="token punctuation">(</span>result<span class="token punctuation">.</span><span class="token function">isPostCodeResult</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
     System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"规则校验通过"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
 <span class="token punctuation">}</span>

    

    }
    
}
    

    •

启动Springboot项目之后，默认访问http://localhost:8080/test/address 即可。
运行结果

规则中打印日志：校验通过!
触发了1条规则
规则校验通过

        </div>
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原文地址：https://www.cnblogs.com/jpfss/p/10870265.html