- /**
- * 将 map 转换为一个对象
- *
- * @param map
- * @param beanClass
- * @return
- * @throws Exception
- */
- public static Object mapToObject(Map<String, String> map, Class<?> beanClass) throws Exception {
- if (map == null)
- return null;
- Object obj = beanClass.newInstance();
- BeanInfo beanInfo = Introspector.getBeanInfo(obj.getClass());
- PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
- for (PropertyDescriptor property : propertyDescriptors) {
- Method setter = property.getWriteMethod();
- if (setter != null) {
- setter.invoke(obj, map.get(property.getName()));
- }
- }
- return obj;
- }
- /**
- * 将对象转换为 map
- *
- * @param obj
- * @return
- * @throws Exception
- */
- public static Map<String, String> obj2Map(Object obj) {
- Map<String, String> map = new HashMap<String, String>();
- // System.out.println(obj.getClass());
- // 获取 f 对象对应类中的所有属性域
- Field[] fields = obj.getClass().getDeclaredFields();
- for (int i = 0, len = fields.length; i < len; i++) {
- String varName = fields[i].getName();
- varName = varName.toLowerCase();// 将 key 置为小写, 默认为对象的属性
- try {
- // 获取原来的访问控制权限
- boolean accessFlag = fields[i].isAccessible();
- // 修改访问控制权限
- fields[i].setAccessible(true);
- // 获取在对象 f 中属性 fields[i] 对应的对象中的变量
- Object o = fields[i].get(obj);
- if (o != null)
- map.put(varName, o.toString());
- // System.out.println("传入的对象中包含一个如下的变量:" + varName + "=" + o);
- // 恢复访问控制权限
- fields[i].setAccessible(accessFlag);
- } catch (IllegalArgumentException ex) {
- ex.printStackTrace();
- } catch (IllegalAccessException ex) {
- ex.printStackTrace();
- }
- }
- return map;
- }
来源: http://www.bubuko.com/infodetail-2976645.html