前言
本人以前写过一个数据模型存储方法，是我在上上家公司做缓存框架的时候写的，具体也就是在FMDB的基础上封装，直接对数据模型进行存储操作，如下：
最近本人也不是很忙，加之在Python项目中用到Redis和在APP中用到NSUserDefaults，我就想做一个便捷的基于数据库的键值对存储方案，当然这个方案并不比Redis优秀，我们也知道Redis是直接从内存中读取，所以速度方面没法说，但是在APP中我们不能把键值对放在内存中吧，本来APP的内存就不宽裕！
ZFJRedisLib
功能结构
ZFJRedisLib主要包含ZFJRedis和ZFJTable两部分，ZFJRedis主要是用于键值对存储，使用简单方便；ZFJTable主要是对于数据模型进行增删改查操作！全部API如下：
image
ZFJRedis
ZFJRedis将会自动在本地创建一个ZFJRedis的表，用于存储键值对数据；
1.存取值
字符串-NSString
// NSString
[ZFJRedis zfj_setValue:@"zhangfujie1128222====" forKey:@"name"];
// 取值
NSString *value = [ZFJRedis zfj_valueForKey:@"name"];
NSLog(@"%@",value);
数字对象-NSNumber
// NSNumber
[ZFJRedis zfj_setValue:@(20) forKey:@"age"];
// 取值
NSNumber *age = [ZFJRedis zfj_valueForKey:@"age"];
NSLog(@"%@",age);
数组-NSArray
// NSArray
[ZFJRedis zfj_setValue:@[@"111", @(222)] forKey:@"array1"];
// 取值
NSArray *array = [ZFJRedis zfj_valueForKey:@"array1"];
NSLog(@"%@",array);
字典-NSDictionary
// NSDictionary
NSDictionary *dict = @{@"name":@"zhangfujie", @"age":@(22), @"sex":@"man"};
[ZFJRedis zfj_setValue:dict forKey:@"zfj_infors"];
// 取值
NSDictionary *dict_value = [ZFJRedis zfj_valueForKey:@"zfj_infors"];
NSLog(@"%@",dict_value);
数据-NSData
// NSData
NSData *data = [NSJSONSerialization dataWithJSONObject:@[@"aaaaa", @"bbbbb"] options:NSJSONWritingPrettyPrinted error:nil];
[ZFJRedis zfj_setValue:data forKey:@"arrayData"];
// 取值
NSData *data_new = [ZFJRedis zfj_valueForKey:@"arrayData"];
NSLog(@"data_new == %@",data_new);
数据模型-model
// NSObject 数据模型
ZFJModel *model = [[ZFJModel alloc] init];
model.name = @"张福杰";
model.age = 22;
// 存
[ZFJRedis zfj_setValue:model forKey:@"model"];
// 取值
ZFJModel *model_my = [ZFJRedis zfj_valueForKey:@"model"];
NSLog(@"%@",model_my.name);
NSLog(@"%ld",model_my.age);
批量存数据
//根据字典赋值
NSMutableDictionary *value_dict = [[NSMutableDictionary alloc] init];
[value_dict setValue:@"aaaaaaaa" forKey:@"key_string"];
[value_dict setValue:@(111) forKey:@"key_number"];
[value_dict setValue:@[@"wwwwwww11111", @(222)] forKey:@"key_array"];
[value_dict setValue:@{@"name":@"zhangfujie", @"age":@(22)} forKey:@"key_dict"];
[value_dict setValue:model_my forKey:@"key_model"];
[ZFJRedis zfj_setValuesForKeysWithDictionary:value_dict];
批量取数据
NSDictionary *dict = [ZFJRedis zfj_dictionaryWithValuesForKeys:value_dict.allKeys];
NSLog(@"dict == %@",dict);
2.查询
获取全部keys
// 获取全部keys
NSArray *keys = [ZFJRedis zfj_allKeys];
NSLog(@"keys == %@",keys);
获取全部values
// 获取全部values
NSArray *values = [ZFJRedis zfj_allValues];
NSLog(@"values == %@",values);
获取全部条数
// 获取全部条数
NSInteger count = [ZFJRedis zfj_count];
NSLog(@"count == %ld",count);
判断key是否存在
// 判断当前key是否存在
BOOL isExist = [ZFJRedis zfj_isExistkey:@"name"];
if(isExist){
NSLog(@"name 存在");
}else{
NSLog(@"name 不存在");
}
3.删除
根据key删除
// 删除
[ZFJRedis zfj_removeObjectForKey:@"array"];
根据keys删除
// 根据keys删除数据
NSArray *key_list = @[@"name", @"age"];
[ZFJRedis zfj_removeObjectsForKeys:key_list];
删除全部
// 删除全部
[ZFJRedis zfj_removeAllObjects];
ZFJTable
ZFJTable是根据数据模型自动创建表，直接根据模型进行增删改查操作的！
1.创建表
// 创建表
BOOL isScu = [ZFJTable zfj_createTable:[ZFJModel class]];
if(isScu){
NSLog(@"ZFJModel表创建成功");
}else{
NSLog(@"ZFJModel表创建失败");
}
2.删除表
//删除表
BOOL isScu = [ZFJTable zfj_removeTable:[ZFJModel class]];
if(isScu){
NSLog(@"ZFJModel表删除成功");
}else{
NSLog(@"ZFJModel表删除失败");
}
3.删除全部表
// 删除数据库
BOOL isScu = [ZFJTable zfj_removeAllTables];
if(isScu){
NSLog(@"数据库删除成功");
}else{
NSLog(@"数据库删除失败");
}
4.插入数据
// 插入一条数据
ZFJModel *model_0 = [[ZFJModel alloc] init];
model_0.name = @"张福杰";
model_0.age = 22;
model_0.gender = @"男";
[ZFJTable zfj_insertModel:model_0 completed:^(NSError * _Nonnull error) {
NSLog(@"error:%@",error);
}];
// 插入多条数据
ZFJModel *model_0 = [[ZFJModel alloc] init];
model_0.name = @"张福杰";
model_0.age = 22;
model_0.gender = @"男";
ZFJModel *model_1 = [[ZFJModel alloc] init];
model_1.name = @"大白菜";
model_1.age = 88;
model_1.gender = @"女";
NSArray *models = @[model_0, model_1];
[ZFJTable zfj_insertModels:models completed:^(NSError * _Nonnull error) {
NSLog(@"error:%@",error);
}];
5.删除数据
// 删除数据
BOOL isScu = [ZFJTable zfj_deleteModel:[ZFJModel class] where:@"name = '张福杰'"];
if(isScu){
NSLog(@"数据删除成功");
}else{
NSLog(@"数据删除失败");
}
6.修改数据
// 修改数据
ZFJModel *model_2 = [[ZFJModel alloc] init];
model_2.name = @"大白菜";
model_2.age = 22;
model_2.gender = @"女";
[ZFJTable zfj_updateModel:model_2 byKey:@"name" completed:^(NSError * _Nonnull error) {
NSLog(@"error:%@",error);
}];
// 修改多条数据
ZFJModel *model_3 = [[ZFJModel alloc] init];
model_3.name = @"张福杰";
model_3.age = 222;
model_3.gender = @"男男";
ZFJModel *model_4 = [[ZFJModel alloc] init];
model_4.name = @"大白菜";
model_4.age = 222;
model_4.gender = @"女女";
NSArray *models = @[model_3, model_4];
[ZFJTable zfj_updateModels:models byKey:@"name" completed:^(NSError * _Nonnull error) {
NSLog(@"error:%@",error);
}];
7.数据查询
// 查询全部数据
[ZFJTable zfj_selectTable:[ZFJModel class] completed:^(NSError * _Nonnull error, NSArray * _Nonnull models) {
for (ZFJModel *model in models) {
NSLog(@"%@",model.name);
}
}];
// 条件查询
[ZFJTable zfj_selectTable:[ZFJModel class] where:@"name = '张福杰'" completed:^(NSError * _Nonnull error, NSArray * _Nonnull models) {
for (ZFJModel *model in models) {
NSLog(@"%@",model.name);
}
}];
// 查询数据条数
NSInteger count = [ZFJTable zfj_selectTableCount:[ZFJModel class]];
NSLog(@"count == %ld",count);
// 根据条件查询数量
NSDictionary *parameters = @{@"name":@"张福杰", @"age":@(22)};
NSString *sqlStr = @"name = '张福杰' and age = '22'";
NSInteger count = [ZFJTable zfj_selectTableCount:[ZFJModel class] where:sqlStr];
NSLog(@"count == %ld",count);
8.表扩展字段
// 向某个表添加一个字段
BOOL isScu = [ZFJTable zfj_addProperty:[ZFJModel class] propertyName:@"newPro_1"];
if(isScu){
NSLog(@"字段添加成功");
}else{
NSLog(@"字段添加失败");
}
8.错误信息
// 最后一条错误
NSError *error = [ZFJTable zfj_lastTableError];
NSLog(@"error == %@",error);
源码
DEMO地址：https://gitee.com/zfj1128/ZFJRedisLib
GitHub地址：https://github.com/zfjsyqk/ZFJRedisLib
使用教程
- pod ‘ZFJRedisLib’
- pod install
- 导入头文件#import “ZFJRedisHeader.h”
结束语
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