Spring中利用配置文件和@value注入属性值代码详解

package com.xy.test2;

import java.util.List;

import java.util.Map;

import java.util.Properties;

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

import org.springframework.stereotype.Service;

/**

 * 该类必须被Spring容器管理属性才可以被注入。利用@Value注解，即使没有该属性或者属性文件也不会报错

 */

@Service

public class PropertiesService2 {

    @Value("#{testPro}")

      private Properties pros;

    @Value("#{testList}")

      private List<String> myList;

    @Value("#{testMap}")

      private Map<Integer, String> myMap;

    public Properties getPros() {

        return pros;

    }

    public void setPros(Properties pros) {

        this.pros = pros;

    }

    public List<String> getMyList() {

        return myList;

    }

    public void setMyList(List<String> myList) {

        this.myList = myList;

    }

    public Map<Integer, String> getMyMap() {

        return myMap;

    }

    public void setMyMap(Map<Integer, String> myMap) {

        this.myMap = myMap;

    }

}