Java 属性不是';在Spring上下文XML中解析t
我正在使用Java 属性不是';在Spring上下文XML中解析t,java,spring,properties,javabeans,Java,Spring,Properties,Javabeans,我正在使用 return new ClassPathXmlApplicationContext("applicationContext.xml"); 在applicationContext.xml内部,我正在用 <bean id="dataSource" class="org.springframework.jdbc.datasource.SingleConnectionDataSource"> <property name="driverClassName
return new ClassPathXmlApplicationContext("applicationContext.xml");
在applicationContext.xml内部,我正在用
<bean id="dataSource"
class="org.springframework.jdbc.datasource.SingleConnectionDataSource">
<property name="driverClassName">
<value>${db.driverclassname}</value>
</property>
...
</bean>
我做错了什么?我用的是Spring 2.5.5,你不需要一个吗
e、 g
类路径:project.properties
详细说明使用方法。您不需要一本吗
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:your.properties</value>
</list>
</property>
<property name="ignoreUnresolvablePlaceholders" value="true"/>
</bean>
e、 g
类路径:project.properties
详细说明用法。
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:your.properties</value>
</list>
</property>
<property name="ignoreUnresolvablePlaceholders" value="true"/>
</bean>
classpath:your.properties
classpath:your.properties
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:your.properties</value>
</list>
</property>
<property name="ignoreUnresolvablePlaceholders" value="true"/>
</bean>