如何获取spring的配置文件applicationContext.xml中配置的bean的个数？

Question

比如在applicationContext.xml中配置了多个数据源：[code="java"]
class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">

oracle.jdbc.driver.OracleDriver


jdbc:oracle:thin:@127.0.0.1:1521:test


cmaster


cmaster

 <bean id="myDataSource2"
    class="org.apache.commons.dbcp.BasicDataSource"
    destroy-method="close">
    <property name="driverClassName">
        <value>oracle.jdbc.driver.OracleDriver</value>
    </property>
    <property name="url">
        <value>jdbc:oracle:thin:@10.25.76.55:1521:oradb</value>
    </property>
    <property name="username">
        <value>xcom35</value>
    </property>
    <property name="password">
        <value>xcom35</value>
    </property>
</bean>

[/code]如何获得配置的bean的个数，即数据源的配置个数。

Answer 1

spring的应用上下文有个几个重载的方法
applicationContext.getBeansOfType(...);
返回Map