spring和Drools规则引擎的使用

Drools5.2.0.Final与Spring3集成测试

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

Xml代码  

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>  

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans   
 		http://www.springframework.org/schema/beans/spring-beans-3.0.xsd   
 		http://www.springframework.org/schema/context   
		 http://www.springframework.org/schema/context/spring-context-3.0.xsd   
 		http://www.springframework.org/schema/tx   
 		http://www.springframework.org/schema/tx/spring-tx-3.0.xsd   
 		http://www.springframework.org/schema/aop    
		 http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> 
     <import resource="classpath:com/jsptpd/rjy/zyj/drools/beans-drools.xml"/>
</beans>

beans-drools.xml

Xml代码  

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>  

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:drools="http://drools.org/schema/drools-spring" 
       xmlns:camel="http://camel.apache.org/schema/spring"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                           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
                           http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">

  <drools:kbase id="kbase1">
     <drools:resources>
          <!--不是<drools:resource type="DRL" source="classpath:com/jsptpd/rjy/zyj/service/Login.drl"/> -->
         <drools:resource type="DRL" source="classpath:Login.drl"/>
     </drools:resources>
  </drools:kbase>

  <drools:ksession id="ksession1" type="stateful" kbase="kbase1"/>

   <bean id="vip" class="com.jsptpd.rjy.zyj.pojo.Vip" />
   <bean id="loginService" class="com.jsptpd.rjy.zyj.service.LoginServiceImpl" >
        <property name="vip" ref="vip" />
   </bean>
</beans>

LoginTest.java

Java代码  

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. }  

package com.jsptpd.rjy.zyj.junit;

import org.drools.runtime.StatefulKnowledgeSession;
import org.junit.Test;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.jsptpd.rjy.zyj.service.LoginServiceImpl;

public class LoginTest {
	@Test
	public void testLogin(){
	   	ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext( "beans.xml" );
    	LoginServiceImpl loginServiceImpl= (LoginServiceImpl) context.getBean( "loginService" );
    	StatefulKnowledgeSession kstateless = (StatefulKnowledgeSession) context.getBean( "ksession1" );
    	loginServiceImpl.checkLogin(kstateless);
    	System.out.println("aa");
	}
}

LoginServiceImpl.java

Java代码  

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. }  

package com.jsptpd.rjy.zyj.service;

import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.StatelessKnowledgeSession;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.jsptpd.rjy.zyj.pojo.Vip;

public class LoginServiceImpl {
        private Vip vip;

		public Vip getVip() {
			return vip;
		}

		public void setVip(Vip vip) {
			this.vip = vip;
		}
           
		public void checkLogin(StatefulKnowledgeSession kstateless ){
			System.out.println("s");
			kstateless.insert(vip);
			kstateless.fireAllRules();
			kstateless.dispose();
			System.out.println("e");
		}
         
		public static boolean checkDB(String name,String password){
			//实际可以到数据库匹配
			return name.trim().equals("jack")&&password.trim().equals("123");
		}
		
}

Login.drl

Java代码  

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  

#created on: 2011-10-24
package com.jsptpd.rjy.zyj.service

#list any import classes here.
import com.jsptpd.rjy.zyj.pojo.Vip;
import java.io.Console;
import java.util.Scanner;
import com.jsptpd.rjy.zyj.service.LoginServiceImpl

#declare any global variables here




rule "vip初次登录"
    salience 100
    when
        $vip:Vip((name==null||name=="")&&
                 (password==null||password=="") )
    then
        String tempName;
    	String tempPassword;
    	Console console=System.console();
    	Scanner scanner = new Scanner(System.in);
    	System.out.print("请输入用户名: ");	
		tempName=(console!=null?console.readLine():scanner.nextLine());
		System.out.print("请输入密码： ");
		tempPassword=(console!=null?new String(console.readPassword()):scanner.nextLine());
        $vip.setName(tempName.trim());
        $vip.setPassword(tempPassword.trim());
        update($vip);
end

rule "没有输入密码"
    salience  90
    when
       $vip:Vip((name!=null&&name!="")&&
                 (password==null||password==""),$name:name)
    then
    	String tempPassword="";
    	Console console=System.console();
    	Scanner scanner = new Scanner(System.in);
		System.out.print("请输入密码： ");
		tempPassword=(console!=null?new String(console.readPassword()):scanner.nextLine());
        $vip.setPassword(tempPassword.trim());
        update($vip);

end


rule "没有输入用户名"
    salience  90
    when
       $vip:Vip((name==null||name=="")&&
                 (password!=null&&password!=""),$password:password )
    then
        String tempName="";
    	Scanner scanner = new Scanner(System.in);
    	System.out.print("请输入用户名: ");	
		tempName=scanner.nextLine();
        $vip.setName(tempName.trim());
        update($vip);

end


rule "输入正确的用户名和密码"
    salience  80
    when
       $vip:Vip((name!=null&&name!=""),
                 (password!=null&&password!=""),LoginServiceImpl.checkDB(name,password) )
    then
        System.out.print(" 欢迎 !!!"+$vip.getName());	

end

rule "输入错误的用户名和密码"
    salience  80
    when
       $vip:Vip((name!=null&&name!=""),
                 (password!=null&&password!=""),!LoginServiceImpl.checkDB(name,password) )
    then
        System.out.print(" 输入错误用户名或密码，请重新输入 !!!\n");	
        $vip.setName("");
        $vip.setPassword("");
        update($vip);
end