Spring 如何读取properties文件

Question

BeanDefinitionRegistry reg = new DefaultListableBeanFactory();    
 PropertiesBeanDefinitionReader reader = new PropertiesBeanDefinitionReader(reg);    
 reader.loadBeanDefinitions(new ClassPathResource("beanConfig.properties"));    
 BeanFactory factory = (BeanFactory)reg;
或者
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location">
           <value>src/jdbc.properties</value>
</property>
</bean>

Answer 1

    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location"><value>classpath:init.properties</value></property>
    </bean>

Answer 2

this.getServletContext().getResourceAsStream("WEB-INF/config.xml");

Answer 3

BeanDefinitionRegistry reg = new DefaultListableBeanFactory();    
PropertiesBeanDefinitionReader reader = new PropertiesBeanDefinitionReader(reg);    
reader.loadBeanDefinitions(new ClassPathResource("beanConfig.properties"));    
BeanFactory factory = (BeanFactory)reg;