- (NSArray*)propertyKeys

{

    unsigned int outCount, i;

    objc_property_t *properties = class_copyPropertyList([self class], &outCount);

    NSMutableArray *keys = [[NSMutableArray alloc] initWithCapacity:outCount];

    for (i = ; i < outCount; i++) {

        objc_property_t property = properties[i];

        NSString *propertyName = [[NSString alloc] initWithCString:property_getName(property) encoding:NSUTF8StringEncoding];

        [keys addObject:propertyName];

    }

    free(properties);

    return keys;

}

- (BOOL)reflectDataFromOtherObject:(NSObject*)dataSource

{

    BOOL ret = NO;

    for (NSString *key in [self propertyKeys]) {

        if ([dataSource isKindOfClass:[NSDictionary class]]) {

            ret = ([dataSource valueForKey:key]==nil)?NO:YES;

        }

        else

        {

            ret = [dataSource respondsToSelector:NSSelectorFromString(key)];

        }

        if (ret) {

            id propertyValue = [dataSource valueForKey:key];

            //该值不为NSNULL，并且也不为nil

            if (![propertyValue isKindOfClass:[NSNull class]] && propertyValue!=nil) {

                [self setValue:propertyValue forKey:key];

            }           

        }

    }

    return ret;

}

/////使用方法

NSDictionary *dicJsonData;

EntityObject *objValue;

[objValue reflectDataFromOtherObject:dicJsonData];  //这样就可以完成对象的自动赋值了，

//你还在使用下面的方法吗?

objValue.value = [dicJsonData objectForKey:@"value"];

//out了！