如何<I>在Java中</i>通过BeanInfo访问私有字段

Question

I know how to access private fields via Class.forName() and Field[]. Now I am trying samething via BeanInfo Interface.

What I did is below.

1. get Class instance via Class.forName()

2. BeanInfo info = Introspector.getBeanInfo(Class) - Here, I can see 'org.owls.anno.vo.Target'.

3. get elements via for syntax.

   for(PropertyDescriptor pd : info.getPropertyDescriptors()){ log.info(pd.getName()); log.info(pd.getDisplayName()); log.info(pd.getPropertyType()); }

4. I expected list of Field names(msg, open_msg), but it prints 'class.java.lang.Class'.

The Target Class is here

package org.owls.anno.vo;

import org.owls.anno.SimpleAnnotation;

@SimpleAnnotation("Add missing attributes")
public class Target {
    private String msg;
    public String open_msg;

    public Target(String msg) {
        super();
        this.msg = msg;
    }

    @Override
    public String toString() {
        return "Target [msg=" + msg + "]";
    }
};

Thanks for Answer :D

Answer 1

您的课程不是bean：没有访问器（getter和/或setter）... getClass()除外！