Object to map

/**
     *  Object turn map
     * @param obj
     * @return
     */
    private static Map<String, Object> objToMap(Object obj) {

        Map<String, Object> map = new HashMap<String, Object>();
        Field[] fields = obj.getClass().getDeclaredFields();	//  obtain f Object corresponds to all property fields in the class 
        for (int i = 0, len = fields.length; i < len; i++) {
            String varName = fields[i].getName();
            varName = varName.toLowerCase();					//  take key Set to lowercase , The default is the attribute of the object 
            try {
                boolean accessFlag = fields[i].isAccessible();	//  Get the original access control permission 
                fields[i].setAccessible(true);					//  Modify access control permissions 
                Object o = fields[i].get(obj);					//  Get in object f Middle attribute fields[i] Variables in the corresponding object 
                if (o != null){
                    map.put(varName, o.toString());
                }
               
                fields[i].setAccessible(accessFlag);			//  Restore access control permissions 
            } catch (IllegalArgumentException ex) {
                ex.printStackTrace();
            } catch (IllegalAccessException ex) {
                ex.printStackTrace();
            }
        }
        return map;
    }