spring怎样根据配置文件为用户自定义类的map属性赋值，他是怎样获取键值对类型的

public class People {
    private String name;
    private Integer age;
    private Map<String,Integer> physicalCharacter;

  </property>
        <property name="physicalChatacter">
            <map>
                <entry key="身高" value="167"/>
                <entry>
                    <key>体重</key>
                    <value>180</value>
                </entry>
            </map>
        </property>