Java. Lang. ClassCastException: class Java. Util. LinkedHashMap always be cast to the class custom class name (Java. Util. LinkedHashMap is the module in Java. The base of loader 'bootstrap'; Custom class name is unnamed in the module of loader org. Apache. Catalina. Loader. ParallelWebappClassLoader @ 714 e861f)

Environment:
The JDK 11.0.2
Tomcat 9 +
Redis
Spring framwork 5.2.8. RELEASE
Spring data redis 2.3.3. RELEASE
Jackson 2.10.3
The configuration class code

 

//springcache for redis 
@ Bean 
Public JedisConnectionFactory redisConnectionFactory (Environment env) {
String redisHost=env. GetProperty (" cache. Redis. Host "); 
Int redisPort=Commons. StringToInteger (() - & gt; Env. GetProperty (" cache. Redis. Port "), 6379); 
String redisPassword=env. GetProperty (" cache. Redis. Password "); 
Int redisDatabase=Commons. StringToInteger (() - & gt; Env. GetProperty (cache. Redis. "database"), 0); 
Long redisTimeout=Commons. StringToLong (() - & gt; Env. GetProperty (cache. Redis. "timeout"), 60 l); 
RedisStandaloneConfiguration redisConfig=new RedisStandaloneConfiguration (redisHost redisPort); 
RedisConfig. SetPassword (redisPassword); 
RedisConfig. SetDatabase (redisDatabase); 
//the pool 
JedisPoolConfig JedisPoolConfig=new JedisPoolConfig (); 
JedisPoolConfig. SetMaxIdle (100); 
JedisPoolConfig. SetMinIdle (10); 
JedisPoolConfig. SetMaxTotal (1000); 
JedisPoolConfig. SetMaxWaitMillis (1000 l); 

JedisClientConfiguration clientConfig=JedisClientConfiguration. Builder () 
ConnectTimeout (Duration. OfSeconds (redisTimeout)) 
ReadTimeout (Duration. OfSeconds (redisTimeout)) 
UsePooling () 
. PoolConfig (jedisPoolConfig) 
The build (); 
Return new JedisConnectionFactory (redisConfig clientConfig); 
} 

@ Bean 
Public RedisTemplate RedisTemplate (RedisConnectionFactory cf, GenericJackson2JsonRedisSerializer valuesRedisSerializer) {
RedisTemplate RedisTemplate=new RedisTemplate<> (a); 
RedisTemplate. SetConnectionFactory (cf); 
RedisTemplate. SetKeySerializer (new StringRedisSerializer ()); 
RedisTemplate. SetValueSerializer (valuesRedisSerializer);//new GenericJackson2JsonRedisSerializer ()); 
RedisTemplate. SetHashKeySerializer (new StringRedisSerializer ()); 
RedisTemplate. SetHashValueSerializer (valuesRedisSerializer);//new GenericJackson2JsonRedisSerializer ()); 
Return redisTemplate; 
} 
@ Bean 
Public RedisCacheManager cacheManager (RedisConnectionFactory connectionFactory, GenericJackson2JsonRedisSerializer valuesRedisSerializer) {
RedisCacheConfiguration config=RedisCacheConfiguration 
DefaultCacheConfig () 
EntryTtl (Duration. OfDays (1)) 
DisableCachingNullValues () 
SerializeValuesWith (RedisSerializationContext. SerializationPair. FromSerializer (valuesRedisSerializer)); 
Return RedisCacheManager. Builder (connectionFactory). CacheDefaults (config). The build (); 
} 

@ Bean (" valuesRedisSerializer ") 
Public GenericJackson2JsonRedisSerializer redisSerializer () {
JavaTimeModule JTM=new JavaTimeModule (); 
JTM. AddSerializer (LocalDateTime. Class, new LocalDateTimeSerializer (DateTimeFormatter. OfPattern (" MM - dd yyyy - HH: MM: ss "))); 
JTM. AddSerializer (LocalDate. Class, new LocalDateSerializer (DateTimeFormatter. OfPattern (" yyyy - MM - dd "))); 
JTM. AddSerializer (LocalTime. Class, new LocalTimeSerializer (DateTimeFormatter. OfPattern (" HH: mm: ss "))); 
JTM. AddDeserializer (LocalDateTime. Class, new LocalDateTimeDeserializer (DateTimeFormatter. OfPattern (" MM - dd yyyy - HH: MM: ss "))); 
JTM. AddDeserializer (LocalDate. Class, new LocalDateDeserializer (DateTimeFormatter. OfPattern (" yyyy - MM - dd "))); 
JTM. AddDeserializer (LocalTime. Class, new LocalTimeDeserializer (DateTimeFormatter. OfPattern (" HH: mm: ss "))); 
ObjectMapper mapper=new ObjectMapper () 
SetVisibility (PropertyAccessor. ALL, JsonAutoDetect. Visibility. ANY) 
. RegisterModule (JTM) 
RegisterModule (new Jdk8Module ()) 
FindAndRegisterModules () 
Disable (SerializationFeature. WRITE_DATES_AS_TIMESTAMPS); 
GenericJackson2JsonRedisSerializer j2jrs=new GenericJackson2JsonRedisSerializer (mapper); 
Return j2jrs; 
} 

Cache annotation method

 
# @ Cacheable (key="id", unless="# result==null") 
@ Override 
Public Optional Get (int id) {
If (id & gt; 0 {
Return boardGroupDao. FindOne (id); 
} 
Return Optional. Empty (); 
} 

In Redis already has records, personal guess is that during deserialization went wrong?

CodePudding user response:

Eclipse with its own compiler, not the JDK compiler, and other using JDK compiler management program (such as: maven) generated object code are different, not common in the serialization/deserialization