日期:2014-05-16 浏览次数:20459 次
/** * @return 返回导出对象对应的类 * @throws Exception * 抛出异常 */ public Object get(String className) throws Exception { Class<?> clz = Class.forName(className); Object obj = clz.newInstance(); return obj; }
/** * @param obj 要转换的对象 这个对象此时是代理类 * @param session hibernate的session * */ public Object ObjectByClassName(Object obj,Session session){ obj = (Object)((SessionImpl)session).immediateLoad(fieldName,session.getIdentifier(obj)); //通过session查询语句,得到一个完整的对象 return obj; }
/** * * @param obj 动态获取的对象 * @param fieldName 该对象的类 * * @return 导出对象中分类条件字段值 */ private Object getProperty(Object obj,String fieldName) { Object value = null; Field property; try { Class<?> conClass = obj.getClass(); property = conClass.getDeclaredField(fieldName); property.setAccessible(true); //如果要访问的属性是私有的,那么此句很必要,你懂的! try { value=property.get(obj); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } catch (SecurityException e) { e.printStackTrace(); } catch (NoSuchFieldException e) { e.printStackTrace(); }catch(ClassNotFoundException e){ e.printStackTrace(); } return value; }
/** * @obj 对象 * @fieldName 属性名称 * @return 返回分类字段值的name属性的Field * @throws Exception */ public Object getFieldObject(Object obj,String fieldName){ Class<?> conClass = obj.getClass(); try { Field[] conField = conClass.getDeclaredFields(); int row = 10;//防止找不到此名称的属性造成无限循环 while(row>0){ for(int i=0;i<conField.length;i++){ Field field = conField[i]; field.setAccessible(true); if(field.getName().equals(fieldName)){ try { return field.get(obj); } catch (IllegalArgumentException e) { return ""; } catch (IllegalAccessException e) { return ""; } } } conClass =conClass.getSuperclass(); conField = conClass.getDeclaredFields(); row--; } } catch (ClassNotFoundException e) { System.out.println(e.getMessage()); return ""; } return ""; } }
//property是已获得的一个泛型的属性值 if (property.getClass().getName().endsWith(this.SET_TYPE)) { PersistentSet sets = (PersistentSet)property; Iterator<?> itSet = sets.iterator(); while(itSet.hasNext()){ Object it = itSet.next();//在这里hibernate执行了查询语句,得到了一个完整的对象 String setClassName = it.getClass(); } }