有两种用法，一种是直接吧方法的返回值注入到实例的属性，二是用返回值定义成Bean

定义实体：

package Bean.superIOCmethod;

public class Person {
   private Son son;
   private String age;
public String getAge() {
    return age;
}
public void setAge(String age) {
    this.age = age;
}
public Son getSon() {
    return son;
}
public void setSon(Son son) {
    this.son = son;
}
}


package Bean.superIOCmethod;

public class Son {
  private String age;

public String getAge() {
    return age;
}

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

package Bean.superIOCmethod;

public class Field {
   public static final String TEST_FIELD="welcom";
   public String getValue(){
    return "test";
   }
   public static String getStaticValue(){
    return "static test";
   }
}

配置文件：

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

<beans>
  <!-- 非静态方法，使用targetObject -->
  <bean id="son" class="Bean.superIOCmethod.Son">
     <property name="age">
       <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
          <property name="targetObject">
              <ref local="value"/>
          </property>
          <property name="targetMethod">
             <value>getValue</value>
          </property>
       </bean>
     </property>
  </bean>
   <!-- 静态方法，无需使用targetObject，但要配置targetClass -->
  <bean id="staticson" class="Bean.superIOCmethod.Son">
     <property name="age">
       <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
          <property name="targetClass">
            <value>Bean.superIOCmethod.Field</value>
          </property>
          <property name="targetMethod">
             <value>getStaticValue</value>
          </property>
       </bean>
     </property>
  </bean>
  
  <!-- 将方法返回值定义成Bean -->
  <bean id="sysProps" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
       <property name="targetClass">
         <value>java.lang.System</value>
       </property>
       <property name="targetMethod">
         <value>getProperties</value>
       </property>
   </bean>
   
   <bean id="javaversion" class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
      <property name="targetObject">
        <ref local="sysProps"/>
      </property>
      <property name="targetMethod">
        <value>getProperty</value>
      </property>
      <property name="arguments">
         <list>
           <value>java.version</value>
         </list>
      </property>
   </bean>
  <bean id="value" class="Bean.superIOCmethod.Field">
  </bean>
</beans>