Springboot整合Urule的方法步骤

Springboot整合Urule的方法步骤

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：

org.springframework.boot

spring-boot-starter-web

com.bstek.urule

urule-console-pro

2.1.0

http:// org.slf4j

slf4j-jdk14

javax.servlet

servlet-api

2.5

provided

org.mybatis.spring.boot

mybatis-spring-boot-starter

1.3.1

com.alibaba

druid

1.0.9

mysql

mysql-connector-java

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 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 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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