spring原始碼學習之：專案公共配置項解決方案

 1 <bean name="databaseConfiguration"  class="org.apache.commons.configuration.DatabaseConfiguration">
 2         <constructor-arg type="javax.sql.DataSource">
 3             <bean class="org.springframework.jndi.JndiObjectFactoryBean">
 4                 <property name="jndiName">
 5                     <value>java:comp/env/jdbc/PROFILEDS</value>
 6                 </property>
 7             </bean>
 8         </constructor-arg>
 9         <constructor-arg index="1" value="配置表的表名字"/>
10         <constructor-arg index="2" value="配置表的key的列名"/>
11         <constructor-arg index="3" value="配置表的value的列名"/>
12 </bean>

1 @Autowired
2 private Configuration configuration;

 1 <!--該bean注入到ioc容器是一個Properties物件-->
 2 <bean name="commonsConfigurationFactoryBean" class="org.springmodules.commons.configuration.CommonsConfigurationFactoryBean">
 3        <constructor-arg ref="databaseConfiguration"/>
 4     </bean>
 5     
 6 
 7 
 8 <!--查詢配置表的bean，專案中業務類可以直接注入Configuration使用，實時查詢配置資訊-->
 9 <bean name="databaseConfiguration"  class="org.apache.commons.configuration.DatabaseConfiguration">
10         <constructor-arg type="javax.sql.DataSource">
11             <bean class="org.springframework.jndi.JndiObjectFactoryBean">
12                 <property name="jndiName">
13                     <value>java:comp/env/jdbc/PROFILEDS</value>
14                 </property>
15             </bean>
16         </constructor-arg>
17         <constructor-arg index="1" value="配置表的表名字"/>
18         <constructor-arg index="2" value="配置表的key的列名"/>
19         <constructor-arg index="3" value="配置表的value的列名"/>
20 </bean>

 1 <!-- 這樣，就可以在xml配置檔案裡用展位符號，業務bean裡的屬性也可以用佔位符號 -->
 2     <bean id="commonsConfigurationPropertyPlaceholder" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
 3         <property name="order" value="1" />  
 4         <property name="ignoreUnresolvablePlaceholders" value="true" />
 5         <property name="properties" ref="commonsConfigurationFactoryBean"/>
 6     </bean>
 7 
 8 
 9 
10 <!--該bean注入到ioc容器是一個Properties物件-->
11 <bean name="commonsConfigurationFactoryBean" class="org.springmodules.commons.configuration.CommonsConfigurationFactoryBean">
12        <constructor-arg ref="databaseConfiguration"/>
13     </bean>
14     
15 
16 
17 <!--查詢配置表的bean，專案中業務類可以直接注入Configuration使用，實時查詢配置資訊-->
18 <bean name="databaseConfiguration"  class="org.apache.commons.configuration.DatabaseConfiguration">
19         <constructor-arg type="javax.sql.DataSource">
20             <bean class="org.springframework.jndi.JndiObjectFactoryBean">
21                 <property name="jndiName">
22                     <value>java:comp/env/jdbc/PROFILEDS</value>
23                 </property>
24             </bean>
25         </constructor-arg>
26         <constructor-arg index="1" value="配置表的表名字"/>
27         <constructor-arg index="2" value="配置表的key的列名"/>
28         <constructor-arg index="3" value="配置表的value的列名"/>
29 </bean>

<!--${}-->
<bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="staticMethod" value="com.configuration.BusinessSourceHelper.setBusinessSource"/>         <property name="arguments" value="${commons.configuration.businessSource}" />
</bean>

 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 

 @Producer
 public class AddRuleProducer {
     
    @Value("${billing.add.rule}")
     private String billingTopic;
     
     @Autowired
     private MessageSender messageSender;
     
     public void sendTopic(String message) {
         messageSender.send(billingTopic, message);
     }
 }