Drools5集成Spring3



　　在drools5.2，有一个jar包：drools-spring-5.2.0.Final.jar，其中定义了在spring中应用的drools的扩展。通过这些扩展，可以直接在spring的配置文件中，配置knowledgebase、session等bean，从而在spring配置的程序中直接应用。drools-spring-5.2.0.Final.jar在droolsjbpm-integration-distribution-5.2.0.Final\binaries文件夹下。

 

登录例子部分代码：

beans.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <beans xmlns="http://www.springframework.org/schema/beans"  
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"  
 4     xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"  
 5     xmlns:p="http://www.springframework.org/schema/p"  
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans     
 7         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd     
 8         http://www.springframework.org/schema/context     
 9          http://www.springframework.org/schema/context/spring-context-3.0.xsd     
10         http://www.springframework.org/schema/tx     
11         http://www.springframework.org/schema/tx/spring-tx-3.0.xsd     
12         http://www.springframework.org/schema/aop      
13          http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">   
14      <import resource="classpath:com/jsptpd/rjy/zyj/drools/beans-drools.xml"/>  
15 </beans>  

 

beans-drools.xml

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <beans xmlns="http://www.springframework.org/schema/beans"  
 3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
 4        xmlns:drools="http://drools.org/schema/drools-spring"   
 5        xmlns:camel="http://camel.apache.org/schema/spring"  
 6        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd  
 7                            http://drools.org/schema/drools-spring http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-container/drools-spring/src/main/resources/org/drools/container/spring/drools-spring-1.0.0.xsd  
 8                            http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">  
 9     
10   <drools:kbase id="kbase1">  
11      <drools:resources>  
12           <!--不是<drools:resource type="DRL" source="classpath:com/jsptpd/rjy/zyj/service/Login.drl"/> -->  
13          <drools:resource type="DRL" source="classpath:Login.drl"/>  
14      </drools:resources>  
15   </drools:kbase>  
16     
17   <drools:ksession id="ksession1" type="stateful" kbase="kbase1"/>  
18     
19    <bean id="vip" class="com.jsptpd.rjy.zyj.pojo.Vip" />  
20    <bean id="loginService" class="com.jsptpd.rjy.zyj.service.LoginServiceImpl" >  
21         <property name="vip" ref="vip" />  
22    </bean>  
23 </beans>  

  

LoginTest.java

 1 package com.jsptpd.rjy.zyj.junit;  
 2     
 3 import org.drools.runtime.StatefulKnowledgeSession;  
 4 import org.junit.Test;  
 5 import org.springframework.context.support.ClassPathXmlApplicationContext;  
 6     
 7 import com.jsptpd.rjy.zyj.service.LoginServiceImpl;  
 8     
 9 public class LoginTest {  
10     @Test  
11     public void testLogin(){  
12         ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext( "beans.xml" );  
13         LoginServiceImpl loginServiceImpl= (LoginServiceImpl) context.getBean( "loginService" );  
14         StatefulKnowledgeSession kstateless = (StatefulKnowledgeSession) context.getBean( "ksession1" );  
15         loginServiceImpl.checkLogin(kstateless);  
16         System.out.println("aa");  
17     }  
18 }  

   

LoginServiceImpl.java

 1 package com.jsptpd.rjy.zyj.service;  
 2     
 3 import org.drools.runtime.StatefulKnowledgeSession;  
 4 import org.drools.runtime.StatelessKnowledgeSession;  
 5 import org.springframework.context.support.ClassPathXmlApplicationContext;  
 6     
 7 import com.jsptpd.rjy.zyj.pojo.Vip;  
 8     
 9 public class LoginServiceImpl {  
10         private Vip vip;  
11     
12         public Vip getVip() {  
13             return vip;  
14         }  
15     
16         public void setVip(Vip vip) {  
17             this.vip = vip;  
18         }  
19                
20         public void checkLogin(StatefulKnowledgeSession kstateless ){  
21             System.out.println("s");  
22             kstateless.insert(vip);  
23             kstateless.fireAllRules();  
24             kstateless.dispose();  
25             System.out.println("e");  
26         }  
27              
28         public static boolean checkDB(String name,String password){  
29             //实际可以到数据库匹配  
30             return name.trim().equals("jack")&&password.trim().equals("123");  
31         }  
32             
33 }  

   

Login.drl

 1 #created on: 2011-10-24  
 2 package com.jsptpd.rjy.zyj.service  
 3     
 4 #list any import classes here.  
 5 import com.jsptpd.rjy.zyj.pojo.Vip;  
 6 import java.io.Console;  
 7 import java.util.Scanner;  
 8 import com.jsptpd.rjy.zyj.service.LoginServiceImpl  
 9     
10 #declare any global variables here  
11     
12     
13     
14     
15 rule "vip初次登录"  
16     salience 100  
17     when  
18         $vip:Vip((name==null||name=="")&&  
19                  (password==null||password=="") )  
20     then  
21         String tempName;  
22         String tempPassword;  
23         Console console=System.console();  
24         Scanner scanner = new Scanner(System.in);  
25         System.out.print("请输入用户名: ");     
26         tempName=(console!=null?console.readLine():scanner.nextLine());  
27         System.out.print("请输入密码： ");  
28         tempPassword=(console!=null?new String(console.readPassword()):scanner.nextLine());  
29         $vip.setName(tempName.trim());  
30         $vip.setPassword(tempPassword.trim());  
31         update($vip);  
32 end  
33     
34 rule "没有输入密码"  
35     salience  90  
36     when  
37        $vip:Vip((name!=null&&name!="")&&  
38                  (password==null||password==""),$name:name)  
39     then  
40         String tempPassword="";  
41         Console console=System.console();  
42         Scanner scanner = new Scanner(System.in);  
43         System.out.print("请输入密码： ");  
44         tempPassword=(console!=null?new String(console.readPassword()):scanner.nextLine());  
45         $vip.setPassword(tempPassword.trim());  
46         update($vip);  
47     
48 end  
49     
50     
51 rule "没有输入用户名"  
52     salience  90  
53     when  
54        $vip:Vip((name==null||name=="")&&  
55                  (password!=null&&password!=""),$password:password )  
56     then  
57         String tempName="";  
58         Scanner scanner = new Scanner(System.in);  
59         System.out.print("请输入用户名: ");     
60         tempName=scanner.nextLine();  
61         $vip.setName(tempName.trim());  
62         update($vip);  
63     
64 end  
65     
66     
67 rule "输入正确的用户名和密码"  
68     salience  80  
69     when  
70        $vip:Vip((name!=null&&name!=""),  
71                  (password!=null&&password!=""),LoginServiceImpl.checkDB(name,password) )  
72     then  
73         System.out.print(" 欢迎 !!!"+$vip.getName());   
74     
75 end  
76     
77 rule "输入错误的用户名和密码"  
78     salience  80  
79     when  
80        $vip:Vip((name!=null&&name!=""),  
81                  (password!=null&&password!=""),!LoginServiceImpl.checkDB(name,password) )  
82     then  
83         System.out.print(" 输入错误用户名或密码，请重新输入 !!!\n");      
84         $vip.setName("");  
85         $vip.setPassword("");  
86         update($vip);  
87 end