redis报错WRONGTYPE Operation against a key holding the wrong kind of value

news2024/9/21 22:43:13

在redis中我们一般存储string、list、hash类型的值，对应的方法分别为 db.StringGet(“key”)、db.ListRange、db.HashGetAll 如果取list类型值时使用了string的方法就会报WRONGTYPE Operation against a key holding the wrong kind of value错误。

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redis-cli命令窗口

#读取string类型的值
get "qwer"
#读取list hash表中data的值
hget "c:System.String,k:InternalMenuJson" data
#读取list hash表中所有的值
hgetall "c:System.String,k:InternalMenuJson"

C#实现

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.Extensions.Caching.Distributed;
using System;
using System.Security.Claims;
using System.Text;
using System.Threading.Tasks;
using Volo.Abp.Caching;
using StackExchange.Redis;
using Newtonsoft.Json; 

namespace Test.Attribute
{
    public class AuthCustoms : AuthorizeAttribute, IAsyncAuthorizationFilter
    { 

        public async Task OnAuthorizationAsync(AuthorizationFilterContext context)
        {
            var redis = ConnectionMultiplexer.Connect("123.33.44.123:6379,password=123asd,ConnectTimeout=15000,SyncTimeout=5000");
            var db = redis.GetDatabase();
            string value = db.StringGet("qwe");
            HashEntry[] aaaaaaaa= db.HashGetAll("c:System.String,k:InternalMenuJson");
            //RedisValue jsonValue = db.StringGet("62725");
            RedisValue bbbbb= db.HashGet("c:System.String,k:InternalMenuJson","data");
        }
    }
}