Spring注解@Value及属性加载配置文件方式

<bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath:/properties/websit.properties</value>
            </list>
        </property>
</bean>

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">
        <property name="properties" ref="configProperties"/>
</bean>
 
<bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath:/properties/websit.properties</value>
            </list>
        </property>
</bean>

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

@Value("${avg.age:22}")  
private int userAge; 

<context:annotation-config/>

package com.dbright.dataprediction.entity;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;
@Component
@PropertySource("classpath:ftpconfig.yml")
@ConfigurationProperties(prefix = "ftp")
public class FtpProperties {

    @Value("${ftplp}")
    public String ftplp;
    @Value("${ftpPort}")
    public String ftpPort;
    @Value("${ftpUser}")
    public String ftpUser;
    @Value("${ftpPwd}")
    public String ftpPwd;
    @Value("${ftpRemotePath}")
    public String ftpRemotePath;

    public String getFtplp() {
        return ftplp;
    }

    public void setFtplp(String ftplp) {
        this.ftplp = ftplp;
    }

    public String getFtpPort() {
        return ftpPort;
    }

    public void setFtpPort(String ftpPort) {
        this.ftpPort = ftpPort;
    }

    public String getFtpUser() {
        return ftpUser;
    }

    public void setFtpUser(String ftpUser) {
        this.ftpUser = ftpUser;
    }

    public String getFtpPwd() {
        return ftpPwd;
    }

    public void setFtpPwd(String ftpPwd) {
        this.ftpPwd = ftpPwd;
    }

    public String getFtpRemotePath() {
        return ftpRemotePath;
    }

    public void setFtpRemotePath(String ftpRemotePath) {
        this.ftpRemotePath = ftpRemotePath;
    }
}