pring 中 通过 CustomeEditorConfigureer 实现类型转换的一点疑问！

在spring中可以通过CustomeEditorConfigurer自动去检测bean包所需要转换属性，自定义一个继承于 PropertyEditorSupport的 Editor类，通过配置文件注入到 CustomeEditoConfigurer类中，当该属性在容器中的值是字符串时，他就会调用setTextAs(String text)，把字符串值转换成目标类型的实例。如果不能正转换，则抛出相应的异常...例子如下
Person.java

package com.demo11;

public class Person {

    private String name;
    private String sex;
    private int age;
   

    public Person(String name, int age, String sex){
       this.name = name;
       this.age= age;
       this.sex = sex;
    }   

    public String getSex(){
       return sex;
    }

   

    public void setSex(String sex) {
       this.sex = sex;
    }

    public String getName() {
       return name;
    }

    public void setName(String name) {
       this.name = name;
    }

    public int getAge() {
       return age;
    }

    public void setAge(int age) {
       this.age = age;
    }

}

Company.java 其中包含 Person属性.

package com.demo11;

public class Company {
    private Person director;

    public Person getDirector() {
       return director;
    }

    public void setDirector(Person director) {
       this.director = director;
    }

}

PersonEditor.java //继承自PropertyEditorSupport

package com.demo11; 

import java.beans.PropertyEditorSupport; 

public class PersonEditor extends PropertyEditorSupport { 

    @Override

    public void setAsText(String text) throws IllegalArgumentException {

       String[] tmp =text.split("-");

       String name = tmp[0];

       int age = Integer.parseInt(tmp[1]);

       String sex = tmp[2];      

       Person person = new Person(name, age, sex);

       setValue(person);

    } 

}

对应的配置文件:

<bean id="customEditorConfigurer"

        class="org.springframework.beans.factory.config.CustomEditorConfigurer">

       <property name="customEditors">

           <map>

              <entry key="com.demo11.Person">

                  <bean class="com.demo11.PersonEditor"></bean>

              </entry>

           </map>

       </property>

    </bean>   

    <bean id="company" class="com.demo11.Company">

       <property name="director">

           <value>nono-35-女</value>

       </property>

    </bean>

在测试类中

ApplicationContext act = new ClassPathXmlApplicationContext("com/demo11/bean.xml");

Company company = (Company)act.getBean("company");

System.out.println(company.getDirector().getName());

输出结果为 nono


这的确是很好的编程思想，但是这在实际应用中有啥好处，或者有哪些实用场合 ？目前为止我还孤陋寡闻，尚不知结果，希望看到的朋友能给我指教指教！[size=large][/size]！