摘要：
Urule决策引擎可简化开发校验、决策类代码，底层由java语言实现，可基于SpringBoot快速配置，因为Urule工具目前为非常用工具，网上关于SpringBoot整合Urule资料匮乏，一直自己摸索，简单的环境搭建也费了些功夫，遇到些坑，作此记录
本次记录主要记录Urule-Serve端Urule-Client端分开部署的模式，这种使用场景也会更多；嵌入式成一个项目的配置和Urule-Server端一致。
一、Urule-Server端：
1.1、 基于maven的SpringBoot基本环境搭建请参考SpringBoot教程
1.2、引入Urule相关依赖，urule-console-pro，开源版本可到https://search.maven.org
中心搜索，依赖如下：
<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.bstek.urule</groupId> <artifactId>urule-console-pro</artifactId> <version>2.1.0</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-jdk14</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.9</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> </dependencies>
1.3、配置文件：两个，appplication.yml , application.properties
appplication.yml，配置数据库信息（我们把urule项目存到数据库中）
server: port: 8081spring: application: name: UruleServer datasource: name: datasource jdbc-url: jdbc:mysql://127.0.0.1:3306/urule?useUnicode=true&characterEncoding=utf-8 username: root password: 666666 # 使用druid数据源 type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.jdbc.Driver filters: stat maxActive: 20 initialSize: 1 maxWait: 60000 minIdle: 1 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: select 'x' testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true maxOpenPreparedStatements: 20
注意，我这此刻DataSource下不jdbc-url而不是url。根据SpringBoot版本自行调整
application.properties,配置项目储存位置
#若为本地环境需配置此路径#urule.repository.dir=F:/EclipsePractice/03_SpringCloud/repo4rule#若为数据库，配置此项，两项均不配则系统指定默认地址urule.repository.databasetype=mysqlurule.repository.datasourcename=datasourceignore-unresolvable=trueorder=1
1.4、初始化bean
datesource
@Configurationpublic class configuration { @Bean public PropertySourcesPlaceholderConfigurer propertySourceLoader() { PropertySourcesPlaceholderConfigurer configurer = new PropertySourcesPlaceholderConfigurer(); configurer.setIgnoreUnresolvablePlaceholders(true); configurer.setOrder(1); return configurer; } @Bean @ConfigurationProperties(prefix = "spring.datasource") public DataSource datasource() { return DataSourceBuilder.create().build(); }}
serverlet
@Componentpublic class URuleServletRegistration{ @Bean public ServletRegistrationBean<HttpServlet> registerURuleServlet() { return new ServletRegistrationBean(new URuleServlet(), new String[] { "/urule/*" }); } }
1.5、启动类：
@SpringBootApplication@ImportResource({"classpath:urule-console-context.xml"})public class Application{ public static void main(String[] args) { SpringApplication.run(Application.class, args); }}
二、客户端调用：
2.1、配置类
application.ymlserver: port: 8090spring: application: name: UruleClient datasource: name: datasource url: jdbc:mysql://127.0.0.1:3306/myland?useUnicode=true&characterEncoding=utf-8 username: root password: 666666 # 使用druid数据源 type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.jdbc.Driver filters: stat maxActive: 20 initialSize: 1 maxWait: 60000 minIdle: 1 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: select 'x' testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true maxOpenPreparedStatements: 20urule: ###服务端发现地址 resporityServerUrl: http://localhost:8081 ###knowledgeUpdateCycle为0时，不是检查缓存，每次都从服务端拉取，为1时，会先查找缓存 knowledgeUpdateCycle: 1
2.2、初始化bean
@Configurationpublic class RuleConfig { @Bean public PropertySourcesPlaceholderConfigurer propertySourceLoader() { PropertySourcesPlaceholderConfigurer configurer = new PropertySourcesPlaceholderConfigurer(); configurer.setIgnoreUnresolvablePlaceholders(true); configurer.setOrder(1); return configurer; }}@Componentpublic class URuleServletRegistration { //此Servlet用于接收Urule服务端发布的知识包，使用开源版本时删除或者注释这个bean @Bean public ServletRegistrationBean registerURuleServlet(){ return new ServletRegistrationBean(new KnowledgePackageReceiverServlet(),"/knowledgepackagereceiver"); }}
2.3、controller:
@RestControllerpublic class TestController {@RequestMapping("/rule") public String getRara(@RequestParam String data)throws IOException{ KnowledgeService knowledgeService = (KnowledgeService) Utils.getApplicationContext().getBean(KnowledgeService.BEAN_ID);//参数，Urule项目名/知识包名 KnowledgePackage knowledgePackage = knowledgeService.getKnowledge("letasa/pare"); KnowledgeSession session = KnowledgeSessionFactory.newKnowledgeSession(knowledgePackage); Integer integer = Integer.valueOf(data); Map<String, Object> param = new HashMap();//参数，var，传入参数，和参数库中定义一致 param.put("var", integer); session.fireRules(param);//result，返回参数，和参数库中定义一致 Integer result = (Integer) session.getParameter("result"); return String.valueOf(result); }}
2.4、启动类
@SpringBootApplication@ImportResource({"classpath:urule-core-context.xml"})public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); }}
Urule项目配置
参数库
规则
知识包及发布
注：Rrule-pro版本支持将知识包推送给具体客户端，客户端使用时先调用缓存，如无缓存则再到服务端拉去。但开源版本的Urule不支持推送，客户端只能主动到服务端拉去数据。
最后访问客户端：http://localhost:8090/rule?data=67，或者data=25，分别得到100，20.
success！
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本文标题: Springboot整合Urule的方法步骤
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