读取properties的简单方法，使用@Configuration

1. 配置类代码如下

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;

@Configuration
public class Config {
    @Value("${test}")
    private String test;

    public String getTest() {
        return test;
    }

}

　　2.Spring配置

<!-- 获取配置属性值 -->
    <bean id="configProperties"
        class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath:app/env/config.properties</value>
                <value>classpath:app/config/database.properties</value>
                <value>classpath:app/config/redis.properties</value>
            </list>
        </property>
    </bean>
    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">
        <property name="properties" ref="configProperties" />
    </bean>        

　　3.测试接口类

@Service
public class SsoInterface {

    @Autowired
    private SsoConfig SsoConfig;

  public void test(){
          System.out.println(SsoConfig.getTest());
    }  

}

最后就能输出 需要的配置文件对应信息