content: package com.genshin.ojcommon.utils;
  
  import com.alibaba.fastjson.JSON;
  import com.alibaba.fastjson.parser.ParserConfig;
  import com.alibaba.fastjson.serializer.SerializerFeature;
  import com.fasterxml.jackson.databind.JavaType;
  import com.fasterxml.jackson.databind.type.TypeFactory;
  import org.springframework.data.redis.serializer.RedisSerializer;
  import org.springframework.data.redis.serializer.SerializationException;
  
  import java.nio.charset.Charset;
  
  /**
   * Redis使用FastJson序列化
   * 
   */
  public class FastJsonRedisSerializer<T> implements RedisSerializer<T>
  {
  
      public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
  
      private Class<T> clazz;
  
      static
      {
          ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
      }
  
      public FastJsonRedisSerializer(Class<T> clazz)
      {
          super();
          this.clazz = clazz;
      }
  
      @Override
      public byte[] serialize(T t) throws SerializationException
      {
          if (t == null)
          {
              return new byte[0];
          }
          return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
      }
  
      @Override
      public T deserialize(byte[] bytes) throws SerializationException
      {
          if (bytes == null || bytes.length <= 0)
          {
              return null;
          }
          String str = new String(bytes, DEFAULT_CHARSET);
  
          return JSON.parseObject(str, clazz);
      }
  
  
      protected JavaType getJavaType(Class<?> clazz)
      {
          return TypeFactory.defaultInstance().constructType(clazz);
      }
  }
  