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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
中心搜索，依赖如下：
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<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！
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