paulwong
          

          

          



          
	
					
	
          
		
          
			Spring3 and EJB Integration(I)EJB Client 
		
          
		Spring3 and EJB Integration(I)EJB Client 
          I used EJB client to call EJB stateless bean, I found it is waste time to lookup the stateless bean every time. 
          So I tried to use spring to get singleton stub from EJB stateless bean. 
          The sample project are in easyaxis2proxy,easyrestproxy,easyjpa,easyejb. 
          We can configure that in Remote/Local way, you can choose that from comment/uncomment the codes I mentioned here. 

          1. Spring configuration file 
          local-ejb-context.xml: 

          <beans xmlns="http://www.springframework.org/schema/beans" 
          xmlns:xsi          ="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" 
          xmlns:tx          ="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" 
          xsi:schemaLocation          ="http://www.springframework.org/schema/beans 
          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
          http://www.springframework.org/schema/aop 
          http://www.springframework.org/schema/aop/spring-aop-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/context 
          http://www.springframework.org/schema/context/spring-context-3.0.xsd 
          "          > 
          <bean id="jndiTemplate" 
                  class          ="org.springframework.jndi.JndiTemplate"> 
                            <property name="environment"> 
                                <props> 
                                    <prop key="java.naming.provider.url"> 
                              ${java.naming.provider.url} 
                                    </prop> 
                                    <prop key="java.naming.factory.initial"> 
                              ${java.naming.factory.initial} 
                                    </prop> 
                                    <prop key="java.naming.factory.url.pkgs"> 
                              ${java.naming.factory.url.pkgs} 
                                    </prop> 
                                </props> 
                            </property> 
                        </bean> 
          <bean id="userServiceLocal" 
          class          ="org.springframework.ejb.access.LocalStatelessSessionProxyFactoryBean"> 
          <property name="jndiTemplate" ref="jndiTemplate" /> 
          <property name="jndiName" value="easyejb/UserServiceLocal" /> 
          <property name="businessInterface" 
          value          ="com.sillycat.core.webservice.interfaces.UserServiceLocal" /> 
          </bean> 
          </beans> 

          remote-ejb-context.xml 

          

          <?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:aop="http://www.springframework.org/schema/aop" 
          xmlns:tx          ="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" 
          xsi:schemaLocation          ="http://www.springframework.org/schema/beans 
          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
          http://www.springframework.org/schema/aop 
          http://www.springframework.org/schema/aop/spring-aop-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/context 
          http://www.springframework.org/schema/context/spring-context-3.0.xsd 
          "          > 

          <bean id="jndiTemplate" 
           class          ="org.springframework.jndi.JndiTemplate"> 
                     <property name="environment"> 
                     <props> 
                     <prop key="java.naming.provider.url"> 
           ${java.naming.provider.url} 
                     </prop> 
                     <prop key="java.naming.factory.initial"> 
           ${java.naming.factory.initial} 
                     </prop> 
                     <prop key="java.naming.factory.url.pkgs"> 
           ${java.naming.factory.url.pkgs} 
                     </prop> 
                     </props> 
                     </property> 
                     </bean> 
          <bean id="userServiceRemote" class="org.springframework.ejb.access.SimpleRemoteStatelessSessionProxyFactoryBean"> 
          <property name="jndiTemplate" ref="jndiTemplate" /> 
          <property name="jndiName" value="easyejb/UserService" /> 
          <property name="businessInterface" 
          value          ="com.sillycat.core.webservice.interfaces.UserService" /> 
          </bean> 
          </beans> 

          We can choose use Remote/Local from the main-context.xml 

          

          <import resource="classpath:resource-context.xml" /> 
          <import resource="classpath:core-context.xml" /> 
          <import resource="classpath:dao-context.xml" /> 
          <import resource="classpath:manager-context.xml" /> 
          <!-- 
          <import resource="classpath:local-ejb-context.xml" /> 
          <import resource="classpath:remote-ejb-context.xml" /> 
          --> 
          <import resource="classpath:local-ejb-context.xml" /> 

          <import resource="classpath:controller-easyrestproxy-context.xml" /> 
          <import resource="classpath:restclient-context.xml" /> 

          <!--My manager spring configuration to call EJB -->
          <bean id="personManager" class="com.sillycat.easyjpa.manager.PersonManagerImpl" > 
          <property name="personDAO" ref="personDAO" /> 
          <!-- 
          <property name="userServiceLocal" ref="userServiceLocal" /> 
          <property name="userServiceRemote" ref="userServiceRemote" /> 
          --> 
          <property name="userServiceLocal" ref="userServiceLocal" /> 
          </bean> 

          2. The properties file config.properties: 

          

          ########################################### 
          # EJB configuration 
          ########################################### 
          java.naming.factory.initial          =org.jnp.interfaces.NamingContextFactory 
          java.naming.factory.url.pkgs          =org.jboss.naming:org.jnp.interfaces 
          java.naming.provider.url          =localhost:1099 

          3. My Manager java source: 

          

          package com.sillycat.easyjpa.manager; 
          import java.util.List; 
          import com.sillycat.core.webservice.interfaces.UserServiceLocal; 
          import com.sillycat.core.webservice.model.IUser; 
          import com.sillycat.easyjpa.dao.PersonDAO; 
          import com.sillycat.easyjpa.model.Person; 
          public class PersonManagerImpl implements PersonManager 
          { 
           PersonDAO personDAO; 
           UserServiceLocal userServiceLocal; 
                     // UserService userServiceRemote; 
           public List<Person> getAll() 
                     { 
                     return personDAO.getAll(); 
           }           
                     public Person get(Integer id) 
                     { 
           IUser iuser           = userServiceLocal.get(Integer.valueOf(1)); 
                     // IUser iuser = userServiceRemote.get(Integer.valueOf(1)); 
           Person p = personDAO.get(id); 
           p.setName(iuser.getEmail()); 
                     return p; 
           }           
                     public void save(Person person) 
                     { 
                     if (person != null && person.getId() != null) 
                     { 
           personDAO.update(person); 
           }           
                     else 
                     { 
           personDAO.insert(person); 
           }           
           }           
                     public void updateName(Person person) 
                     { 
                     if (person != null && person.getId() != null) 
                     { 
           personDAO.updateName(person.getName(), person.getId()); 
           }           
           }           
                     public void delete(Integer id) 
                     { 
           personDAO.delete(id); 
           }           
                     public void setPersonDAO(PersonDAO personDAO) 
                     { 
                     this.personDAO = personDAO; 
           }           
                     // public void setUserServiceRemote(UserService userServiceRemote) 
                     // { 
                     // this.userServiceRemote = userServiceRemote; 
                     // } 
           public void setUserServiceLocal(UserServiceLocal userServiceLocal) 
                     { 
                     this.userServiceLocal = userServiceLocal; 
           }           
          }           

          4. We can deploy these packages to JBOSS, and run the axis2 testcase or rest testcase to verify that.  
		
          
			posted on 2011-11-24 21:54 paulwong 閱讀(537) 評論(0)  編輯  收藏  所屬分類: EJB3 
		
          
	
          
	
	





          
	    
    




          








          

				

          



    







          
        
	




主站蜘蛛池模板：
新宁县|
麦盖提县|
洛扎县|
平乐县|
唐山市|
三门峡市|
海原县|
两当县|
五指山市|
格尔木市|
将乐县|
旬邑县|
镇宁|
望都县|
通榆县|
邹城市|
凤翔县|
察雅县|
扬州市|
永定县|
醴陵市|
安化县|
将乐县|
新竹市|
太原市|
韶关市|
襄城县|
辽中县|
田林县|
康定县|
开原市|
保定市|
武汉市|
堆龙德庆县|
西畴县|
元江|
岫岩|
莱阳市|
新龙县|
饶平县|
达日县|