1 /** 将sourceObj的属性拷贝到targetObj  2      * @param sourceObj  3      * @param targetObj  4      * @param clazz 从哪一个类开始(比如sourceObj对象层级为:Object->User->ChineseUser->ChineseMan->ChineseChongQingMan)  5      * 如果需要从ChineseUser开始复制，clazz就指定为ChineseUser.class  6      */   7     public static void cpoyObjAttr(Object sourceObj, Object targetObj, Class<?> clazz)throws Exception 8     {   9         if(sourceObj==null || targetObj==null)10         {  11             throw new Exception("源对象和目标对象不能为null");  12         }  13         Field[] fields=clazz.getDeclaredFields();  14         for(int i = 0; i < fields.length; i++)15         {16             //System.out.println(fields[i].getName());17             //Object sourceValue=http://www.mamicode.com/fields[i].get(sourceObj);  18             19             Method getMethod = sourceObj.getClass().getMethod("get" + fields[i].getName());20             Object sourceValue = http://www.mamicode.com/(Object) getMethod.invoke(sourceObj, null);21             if(null==sourceValue)22             {23                 sourceValue = http://www.mamicode.com/null;24             }            25             fields[i].setAccessible(true);          26             fields[i].set(targetObj,sourceValue);27            28 //            System.out.println(fields[i].getName()+";"+clazz+";"+fields[i].getType());            29 //            Method setMethod = targetObj.getClass().getMethod("set" +fields[i].getName(), fields[i].getType());30 //            setMethod.invoke(targetObj, sourceValue.toString());31         }  32         if(clazz.getSuperclass()==Object.class){  33             return;  34         }         35         cpoyObjAttr(sourceObj,targetObj,clazz.getSuperclass());             36     }