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: 8081 spring: 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=mysql urule.repository.datasourcename=datasource ignore-unresolvable=true order=1
1.4、初始化bean
datesource
@Configuration
public 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
@Component
public 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.yml server: port: 8090 spring: 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: 20 urule: ###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
@Configuration
public class RuleConfig {
@Bean
public PropertySourcesPlaceholderConfigurer propertySourceLoader() {
PropertySourcesPlaceholderConfigurer configurer = new PropertySourcesPlaceholderConfigurer();
configurer.setIgnoreUnresolvablePlaceholders(true);
configurer.setOrder(1);
return configurer;
}
}
@Component
public 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:
@RestController
public 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！
