通过@Value注解读取.properties配置内容

@Controller

@RequestMapping("/value")

public class ValuePropertyController extends ApplicationController{

    @Value("#{configProperties['jdbc.jdbcUrl']}")

    private String jdbcUrl;

    @RequestMapping

    public String value(){

        System.out.println(jdbcUrl);

        return "";

    }

}

applicationContext.xml

<bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">

       <property name="locations">

           <list>

               <value>classpath:database.properties</value>

           </list>

       </property>

    </bean>

    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">

        <property name="properties" ref="configProperties" />

</bean>

database.properties

jdbc.jdbcUrl=jdbc:mysql://localhost:3306/commentDemo?useUnicode=true&characterEncoding=UTF-8