SerializationException异常产生原因及解决方案-蒲公英云

SerializationException异常产生原因及解决方案

桃扇骨 2024-02-17 09:30 201阅读 0赞

SerializationException异常产生原因及解决方案

01 异常发生场景

当我试图取出我存入redis的数据时

@Test
void contextLoads() {
```
ValueOperations valueOperations=redisTemplate.opsForValue();
valueOperations.append("n2","666");
System.out.println(valueOperations.get("n2"));
```
}
//org.springframework.data.redis.serializer.SerializationException: Cannot deserialize; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is java.io.StreamCorruptedException:

02 异常的产生原因

通过查询语句，发现在数据库中没有出现对应的key

keys *
原来是我打错函数把append方法视为添加语句
而正确的语句是
```
valueOperations.set("n2","666");
```
这个SerializationException算是比常见的问题了，简单来说就是无法从redis中get到数据，我犯的错是没有存，redis里没有数据当然取不到

03 解决方式

@Test
void contextLoads() {
    ValueOperations valueOperations=redisTemplate.opsForValue();
    valueOperations.set("n2","666");
    System.out.println(valueOperations.get("n2"));
}