오류 나는 다음과 같은 오류가 무엇입니까 봄

Question

에

을 IDREF 사용하는 동안 내가 point0를 초기화하는 '심판'을 사용하는 경우

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-  beans-2.0.dtd"> 

<beans> 
    <bean id="triangle" class="com.mycompany.springdemo.Triangle"> 
     <property name="point0"> 
      <idref bean = "point01"/> 
     </property> 
     <property name="point1"> 
      <bean class="com.mycompany.springdemo.Point"> 
       <property name="x" value="20"/> 
       <property name="y" value="0"/> 
      </bean> 
     </property> 
     <property name="point2"> 
      <bean class="com.mycompany.springdemo.Point"> 
       <property name="x" value="0"/> 
       <property name="y" value="20"/> 
      </bean> 
     </property> 
    </bean> 
    <bean id="point01" class="com.mycompany.springdemo.Point"> 
     <property name="x" value="0"/> 
     <property name="y" value="0"/> 
    </bean> 

</beans> 

다음 잘 작동을, 하지만 'idref'에 대한 오류.

Answer 1

대신 :

<property name="point0"> 
      <idref bean = "point01"/> 
</property> 

사용이 :

<property name="point0" ref="point01" /> 

and read the documentation about idref

[봄 IDREF 사용] (의