RedisTemplate 的hash结构测试类, 使用场景 购物车

@Resource(name = "redisTemplate")

private HashOperations<String, String, Object> hashOps;

@Test

public void test4() throws Exception{

String key = "test_User_shopping:" + 2; //id为2的用户的购物车;

hashOps.put(key,"3",5+"");

hashOps.put(key,"4",2+"");

hashOps.put(key,"6",1+"");

Map<String, Object> map2 = hashOps.entries(key);//返回map集合

//用户购物车的列表为,3号商品5个,4号2个,6号1个;

hashOps.increment(key,"6",2);//用户再次添加商品6号2个,

Map<String,Object> objectMap=new HashMap<>();

objectMap.put("7",3+"");

objectMap.put("9",3+"");

hashOps.putAll(key,objectMap);//批量添加

Map<String, Object> map3 = hashOps.entries(key);//返回map集合

hashOps.delete(key,"6");//移除商品6号;

Map<String, Object> map4 = hashOps.entries(key);//返回map集合

Boolean age1 = hashOps.hasKey(key, "9");//是否存在hash字段

Object age2 = hashOps.get(key, "9");//获取hash字段的值;

Set<String> keys = hashOps.keys(key);//返回map的key集合Set

Long size = hashOps.size(key);//返回列表的大小,

List<Object> values = hashOps.values(key);//返回值的集合;

List<String> hashkeys = new ArrayList<>();

hashkeys.add("7");

hashkeys.add("9");

List<Object> objects = hashOps.multiGet(key, hashkeys);//批量获取,

}