java获取对象属性类型、属性名称、属性值

	/**
	 * 根据属性名获取属性值
	 * */
    private Object getFieldValueByName(String fieldName, Object o) {
        try {  
            String firstLetter = fieldName.substring(0, 1).toUpperCase();  
            String getter = "get" + firstLetter + fieldName.substring(1);  
            Method method = o.getClass().getMethod(getter, new Class[] {});  
            Object value = method.invoke(o, new Object[] {});  
            return value;  
        } catch (Exception e) {  
            log.error(e.getMessage(),e);  
            return null;  
        }  
    } 
    
    /**
     * 获取属性名数组
     * */
    private String[] getFiledName(Object o){
    	Field[] fields=o.getClass().getDeclaredFields();
       	String[] fieldNames=new String[fields.length];
    	for(int i=0;i