最近研究了一下规则引擎drools。

这篇博客带你搭建并运行一个可在线编辑,在线打包,远程执行的规则引擎(drools)

本篇博客同时参考https://blog.csdn.net/chinrui/article/details/79018351 博客内容

1、搭建Workbench (首先保证主机联网,有docker环境)

  docker run -p 8080:8080 -p 8001:8001 -d --name drools-wb jboss/drools-workbench-showcase:latest

  容器启动完之后就可以访问如下链接(可能docker镜像下载有点慢。可以切换阿里云镜像仓库)

  http://IP:8080/business-central/kie-wb.jsp?locale=zh_CN

界面如下:

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  用户名:admin  密码:admin

  登录进去之后

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  点击创建工程

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  点击创建Add Asset

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  创建完对象点击保存

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  保存之后回到工程界面

  继续创建rule,向导性规则

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

package com.myspace.mytest1;

rule "myrule1"
dialect "java"
when
$info : mytestmodel1( sex == )
then
$info.setName( "李雷" );
end

创建测试场景

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

编辑如下测试规则

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

然后返回点击build

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

然后点击

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

2、创建 kie-server

  docker run -p 8180:8080 -d --name kie-server --link drools-wb:kie_wb jboss/kie-server-showcase:latest

  运行如上docker容器

  drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  容器运行起来之后

  访问如下链接http://IP:8180/kie-server/services/rest/server/

  drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  在访问链接 http://IP:8180/kie-server/services/rest/server/containers

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  这里发现已经有了我们刚才创建的kie-server服务列表,这是我们需要创建一个运行容器,返回我们的mytest1rule

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  发布成功之后

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

  然后在访问链接http://IP:8180/kie-server/services/rest/server/containers

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

接下来上代码开发我们的测试程序

maven项目引用依赖

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<drools.version>7.18.0.Final</drools.version>
</properties> <dependencies>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-decisiontables</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-templates</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-api</artifactId>
<version>${drools.version}</version>
</dependency> <dependency>
<groupId>org.kie.server</groupId>
<artifactId>kie-server-client</artifactId>
<version>${drools.version}</version>
</dependency> </dependencies>

实体类

package com.myspace.mytest1;

/**
* This class was automatically generated by the data modeler tool.
*/ public class mytestmodel1 implements java.io.Serializable { static final long serialVersionUID = 1L; private java.lang.Integer id;
private java.lang.String name;
private java.lang.Integer sex; public mytestmodel1() {
} public java.lang.Integer getId() {
return this.id;
} public void setId(java.lang.Integer id) {
this.id = id;
} public java.lang.String getName() {
return this.name;
} public void setName(java.lang.String name) {
this.name = name;
} public java.lang.Integer getSex() {
return this.sex;
} public void setSex(java.lang.Integer sex) {
this.sex = sex;
} public mytestmodel1(java.lang.Integer id, java.lang.String name,
java.lang.Integer sex) {
this.id = id;
this.name = name;
this.sex = sex;
} @Override
public String toString() {
return "mytestmodel1 [id=" + id + ", name=" + name + ", sex=" + sex + "]";
} }

控制台执行代码

package com.myspace.mytest1;

import java.io.IOException;
import java.util.LinkedList;
import java.util.List; import org.kie.api.KieServices;
import org.kie.api.command.Command;
import org.kie.api.command.KieCommands;
import org.kie.api.runtime.ExecutionResults;
import org.kie.server.api.marshalling.MarshallingFormat;
import org.kie.server.api.model.ServiceResponse;
import org.kie.server.client.KieServicesClient;
import org.kie.server.client.KieServicesConfiguration;
import org.kie.server.client.KieServicesFactory;
import org.kie.server.client.RuleServicesClient; public class droolstest { public static final String SERVER_URL = "http://ip:8180/kie-server/services/rest/server";
public static final String PASSWORD = "kieserver1!";
public static final String USERNAME = "kieserver";
public static final String KIE_CONTAINER_ID = "mytest1_1.0.0-SNAPSHOT";
public static final String KIE_SESSION_ID = "mytest1"; public static void main(String[] args) throws IOException { // KisService 配置信息设置
KieServicesConfiguration kieServicesConfiguration =
KieServicesFactory.newRestConfiguration(SERVER_URL, USERNAME, PASSWORD, 10000L);
kieServicesConfiguration.setMarshallingFormat(MarshallingFormat.JSON); // 创建规则服务客户端
KieServicesClient kieServicesClient = KieServicesFactory.newKieServicesClient(kieServicesConfiguration);
RuleServicesClient ruleServicesClient = kieServicesClient.getServicesClient(RuleServicesClient.class); // 规则输入条件
mytestmodel1 mytest = new mytestmodel1();
mytest.setSex(1); // 命令定义,包含插入数据,执行规则
KieCommands kieCommands = KieServices.Factory.get().getCommands();
List<Command<?>> commands = new LinkedList<>();
commands.add(kieCommands.newInsert(mytest, "mytestmodel1"));
commands.add(kieCommands.newFireAllRules());
ServiceResponse<ExecutionResults> results = ruleServicesClient.executeCommandsWithResults(KIE_CONTAINER_ID,
kieCommands.newBatchExecution(commands, KIE_SESSION_ID)); // 返回值读取
mytestmodel1 value = (mytestmodel1) results.getResult().getValue("mytestmodel1");
System.out.println(value.toString());
} }

执行结果

当sex为0时有如下输出

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

当sex等于1的时候

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

这里就完成了整个流程的跑通

其中注意链接的 KIE_CONTAINER_ID和KIE_SESSION_ID的对应关系

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

drools规则引擎与kie-wb和kie-server远程执行规则(7.18.0.Final)-LMLPHP

05-11 11:09