Java Bean to Map - Java Reflection

Java examples for Reflection:Java Bean

  1. HOME
  2. Java
  3. Reflection
  4. Java Bean

Description

Java Bean to Map

Demo Code


//package com.java2s;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;

public class Main {
    public static void main(String[] argv) throws Exception {
        Object javaBean = "java2s.com";
        System.out.println(Bean2Map(javaBean));
    }/*w w  w .java2s . co m*/

    @SuppressWarnings("unchecked")
    public static <K, V> Map<K, V> Bean2Map(Object javaBean) {
        Map<K, V> ret = new HashMap<K, V>();
        try {
            Method[] methods = javaBean.getClass().getDeclaredMethods();
            for (Method method : methods) {
                if (method.getName().startsWith("get")) {
                    String field = method.getName();
                    field = field.substring(field.indexOf("get") + 3);
                    field = field.toLowerCase().charAt(0)
                            + field.substring(1);
                    Object value = method.invoke(javaBean, (Object[]) null);
                    ret.put((K) field, (V) (null == value ? "" : value));
                }
            }
        } catch (Exception e) {
        }
        return ret;
    }
}

Related Tutorials