/** * 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<fields.length;i++){ System.out.println(fields[i].getType()); fieldNames[i]=fields[i].getName(); } return fieldNames; } /** * 获取属性类型(type),属性名(name),属性值(value)的map组成的list * */ private List getFiledsInfo(Object o){ Field[] fields=o.getClass().getDeclaredFields(); String[] fieldNames=new String[fields.length]; List list = new ArrayList(); Map infoMap=null; for(int i=0;i<fields.length;i++){ infoMap = new HashMap(); infoMap.put("type", fields[i].getType().toString()); infoMap.put("name", fields[i].getName()); infoMap.put("value", getFieldValueByName(fields[i].getName(), o)); list.add(infoMap); } return list; } /** * 获取对象的所有属性值,返回一个对象数组 * */ public Object[] getFiledValues(Object o){ String[] fieldNames=this.getFiledName(o); Object[] value=new Object[fieldNames.length]; for(int i=0;i<fieldNames.length;i++){ value[i]=this.getFieldValueByName(fieldNames[i], o); } return value; }
文章来源 : http://blog.csdn.net/linshutao/article/details/7693625