Spring读取properties属性文件配置项遇到的问题

package test.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component("myConfig") // 这个一定要有
public class myConfig {

    @Value("${userAddress}") 
    private String address;

    @Value("${isUse}")
    private String isUser;

    public String getAddress() {
        return address;
    }

    public Boolean isUse() {
        if (isUser == null) {
            return false;
        }
        return Boolean.valueOf(isUser);
    }
}
pac