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

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：

　　用户名：admin　　密码：admin

　　登录进去之后

　　点击创建工程

　　点击创建Add Asset

　　创建完对象点击保存

　　保存之后回到工程界面

　　继续创建rule,向导性规则

package com.myspace.mytest1;

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

创建测试场景

编辑如下测试规则

然后返回点击build

然后点击

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

　　

　　容器运行起来之后

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

　　

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

　　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

　　发布成功之后

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

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

当sex等于1的时候

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