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本篇內(nèi)容主要講解“springboot集成redis存對(duì)象亂碼如何解決”,感興趣的朋友不妨來(lái)看看。本文介紹的方法操作簡(jiǎn)單快捷,實(shí)用性強(qiáng)。下面就讓小編來(lái)帶大家學(xué)習(xí)“springboot集成redis存對(duì)象亂碼如何解決”吧!
其實(shí)本質(zhì)上不算是一種亂碼,只是序列化之后存儲(chǔ)的東西而已,當(dāng)我們使用RedisTemplete存儲(chǔ)對(duì)象,時(shí),如果該對(duì)象沒(méi)有被序列化則會(huì)報(bào)錯(cuò),序列化之后得到的不是自己想要的數(shù)據(jù),為了解決這種方法,我們可以使用 StringRedisTemplete
默認(rèn)使用redistemplete時(shí)
/** * title: list * * 當(dāng)我們保存到redis中的是一個(gè)對(duì)象時(shí),我們會(huì)發(fā)現(xiàn)會(huì)報(bào)錯(cuò),提示我們需要序列化 , * 當(dāng)我們繼承了序列化接口之后,查看設(shè)置的值時(shí),我們發(fā)現(xiàn)設(shè)置的值不是原來(lái)的樣字, * 此時(shí)我們可以通過(guò)兩種方式解決 * 1. * * @author : ZHeng */ @SpringBootTest public class RedisListTest01 { // @Autowired // StringRedisTemplate stringRedisTemplate; @Autowired RedisTemplate redisTemplate; @Test public void test(){ redisTemplate.opsForValue().set("user1",new User(2,"lisi",19)); System.out.println(redisTemplate.opsForValue().get("user1")); } }
當(dāng)我們運(yùn)行時(shí)會(huì)發(fā)現(xiàn)報(bào)錯(cuò)了!提示我們User對(duì)象沒(méi)有序列化。
org.springframework.data.redis.serializer.SerializationException: Cannot serialize; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to serialize object using DefaultSerializer; nested exception is java.lang.IllegalArgumentException: DefaultSerializer requires a Serializable payload but received an object of type [com.xxx.redis01.model.User]
.....
Caused by: java.lang.IllegalArgumentException: DefaultSerializer requires a Serializable payload but received an object of type [com.xxx.redis01.model.User]
at org.springframework.core.serializer.DefaultSerializer.serialize(DefaultSerializer.java:43)
at org.springframework.core.serializer.Serializer.serializeToByteArray(Serializer.java:56)
at org.springframework.core.serializer.support.SerializingConverter.convert(SerializingConverter.java:60)
... 72 more
Process finished with exit code -1
當(dāng)我們給User對(duì)象序列化之后運(yùn)行
public class User implements Serializable { private Integer id; private String name; private Integer age; //省略getter setter toString等 }
天啦嚕,竟然不亂碼了!!! ,但是–當(dāng)你使用linux 遠(yuǎn)程連接后查看keys 時(shí)你會(huì)發(fā)現(xiàn),欸? 這里亂碼了。。。
2022-04-01 20:32:07.666 INFO 18640 --- [ main] com.xxx.redis01.RedisListTest01 : No active profile set, falling back to 1 default profile: "default"
2022-04-01 20:32:07.998 INFO 18640 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2022-04-01 20:32:08.000 INFO 18640 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Redis repositories in DEFAULT mode.
2022-04-01 20:32:08.018 INFO 18640 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 5 ms. Found 0 Redis repository interfaces.
2022-04-01 20:32:08.752 INFO 18640 --- [ main] com.xxx.redis01.RedisListTest01 : Started RedisListTest01 in 1.488 seconds (JVM running for 2.517)
User{id=2, name='lisi', age='19'}Process finished with exit code 0
這是什么鬼? 明明是user1 這是啥啊
127.0.0.1:6379> keys * ??ser1
解決方式肯定不是只有一種,只是自己學(xué)習(xí)記錄,,僅供參考
@SpringBootTest public class RedisListTest01 { @Autowired StringRedisTemplate stringRedisTemplate; @Test public void test(){ stringRedisTemplate.opsForValue().set("user1",new User(2,"lisi",19).toString()); System.out.println(stringRedisTemplate.opsForValue().get("user1")); } }
成功拿到
User{id=2, name='lisi', age='19'}
我們?cè)趌inux下看看,同樣ok
127.0.0.1:6379> keys * user1 127.0.0.1:6379> get user1 User{id=2, name='lisi', age='19'} 127.0.0.1:6379>
當(dāng)然還有另一種方式,存入JSON格式,這里就不放代碼了.
/**解決redis中文亂碼 * Created by dgx on 2019/8 */ @Configuration public class Config { @Autowired private RedisTemplate redisTemplate; @Bean public RedisTemplate redisTemplateInit() { //設(shè)置序列化Key的實(shí)例化對(duì)象 redisTemplate.setKeySerializer(new StringRedisSerializer()); //設(shè)置序列化Value的實(shí)例化對(duì)象 redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer()); return redisTemplate; } }
到此,相信大家對(duì)“springboot集成redis存對(duì)象亂碼如何解決”有了更深的了解,不妨來(lái)實(shí)際操作一番吧!這里是億速云網(wǎng)站,更多相關(guān)內(nèi)容可以進(jìn)入相關(guān)頻道進(jìn)行查詢(xún),關(guān)注我們,繼續(xù)學(xué)習(xí)!
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