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,<
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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,

}