Spring 中注入 properties 中的值

<bean id="ckcPlaceholderProperties" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:default.properties</value>
            </list>
        </property>
        <property name="order" value="2"></property>
        <property name="ignoreUnresolvablePlaceholders" value="true" />
</bean>
<bean id="pathConfig" class="com.movitech.erms.business.configuration.PathConfig"/>

# default.properties file content
local.attachment.path=1
attachment.resume.path=2
interview.attachment.path=D:My Document

/**
 *  PathConfig 注入的类文件
 *
 * @author Tony.Wang
 * @time 2014/4/28 0028 17:31
 */
public class PathConfig {

    @Value("${local.attachment.path}")
    private String localAttachmentPath;

    @Value("${attachment.resume.path}")
    private String attachmentResumePath;

    @Value("${interview.attachment.path}")
    private String interviewAttachmentPath;

    public String getLocalAttachmentPath() {
        return localAttachmentPath;
    }

    public String getInterviewAttachmentPath() {
        return interviewAttachmentPath;
    }

    public String getAttachmentResumePath() {
        return attachmentResumePath;
    }
}

@Resource
private PathConfig pathConfig;