Spring中属性文件properties的读取与使用详解

#邮件发送的相关配置
email.host = smtp.163.com
email.port = xxx
email.username = xxx
email.password = xxx
email.sendFrom = xxx@163.com

<!-- spring的属性加载器，加载properties文件中的属性 -->
 <bean id="propertyConfigurer"
 class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
 <property name="location">
  <value>/WEB-INF/configInfo.properties</value>
 </property>
 <property name="fileEncoding" value="utf-8" />
 </bean>

<!-- 邮件发送 -->
 <bean id="mailSender"
 class="org.springframework.mail.javamail.JavaMailSenderImpl">
 <property name="host">
  <value>${email.host}</value>
 </property>
 <property name="port">
  <value>${email.port}</value>
 </property>
 <property name="username">
  <value>${email.username}</value>
 </property>
 <property name="password">
  <value>${email.password}</value>
 </property>
 <property name="javaMailProperties">
  <props>
  <prop key="mail.smtp.auth">true</prop>
  <prop key="sendFrom">${email.sendFrom}</prop>
  </props>
 </property>
 </bean>

#生成文件的保存路径
file.savePath = D:/test/
#生成文件的备份路径，使用后将对应文件移到该目录
file.backupPath = D:/test bak/

@Component("configInfo")
public class ConfigInfo {
  @Value("${file.savePath}")
  private String fileSavePath;

  @Value("${file.backupPath}")
  private String fileBakPath;
    
  public String getFileSavePath() {
    return fileSavePath;
  }

  public String getFileBakPath() {
    return fileBakPath;
  }  
}

 

@Autowired
private ConfigInfo configInfo;

<context:component-scan base-package="com.my.model" />