public static final void main(String[] args) throws Exception {
        BeanReader reader = new BeanReader();
        reader.getXMLIntrospector().getConfiguration().setAttributesForPrimitives(false);
        reader.getBindingConfiguration().setMapIDs(false);    
//        reader.registerBeanClass("personbean", PersonBean.class);
        reader.registerBeanClass(PersonBean.class);
        PersonBean person = (PersonBean)reader.parse(new File("C:\\person.xml"));
        System.out.println(person);
    }
}

Bean：
public class PersonBean {
    private String name;
        private int age;
       
        /** Need to allow bean to be created via reflection */
        public PersonBean() {}
       
        public PersonBean(String name, int age) {
            this.name = name;
            this.age = age;
        }
       
        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;
        }
       
        public String toString() {
            return "PersonBean[name=’" + name + "’,age=’" + age + "’]";
        }
}

XML：
<beans>
  <personbean>
    <age>22</age>
    <name>luna</name>
  </personbean>
</beans>

结果一：跑这个时候，结果是null
        reader.registerBeanClass(PersonBean.class);
结果二：跑这个时候，结果是PersonBean[name=’luna’,age=’22’]
        reader.registerBeanClass("personbean", PersonBean.class);

问题，我如果想reader.registerBeanClass(PersonBean.class);用这种方式的话，要如果才能得到正确的结果呢。。。