java中对象转map

package org.kxtkx.portal.utils;

import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;

/**
 * 描述：java中对象转map
 * @author wangzhiming 
 * @created in 2018-05-29
 */
public class objAnalys {
 
 public static Map ConvertObjToMap(Object obj){
  Map<String,Object> reMap = new HashMap<String,Object>();
  if (obj == null) 
   return null;
  //获取实体中声明的所有字段名字
  Field[] fields = obj.getClass().getDeclaredFields();
  try {
   for(int i=0;i<fields.length;i++){
    try {
     Field f = obj.getClass().getDeclaredField(fields[i].getName());
     ////让我们在用反射时访问私有变量,如果setAccessible(false):不允许通过反射访问该字段
     f.setAccessible(true);
     //获取属性值
     Object o = f.get(obj);
    //添加至map中
     reMap.put(fields[i].getName(), o);
    } catch (NoSuchFieldException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    } catch (IllegalArgumentException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    } catch (IllegalAccessException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
   }
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } 
  return reMap;
 }
 
 public static void main(String[] args) {
  Admin a = new Admin();
  a.setCPassword("wzm1994");
  a.setCUsername("张三");
  Map m = ConvertObjToMap(a);
  System.out.println(m);
 }
}