com.dagm.devtool.serializer.FastJson2JsonRedisSerializer Maven / Gradle / Ivy

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package com.dagm.devtool.serializer;

import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.type.TypeFactory;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;
import org.springframework.util.Assert;

/**
 * FastJson2JsonRedisSerializer Redis使用FastJson序列化
 */
public class FastJson2JsonRedisSerializer implements RedisSerializer {

    private ObjectMapper objectMapper = new ObjectMapper();
    public static final Charset DEFAULT_CHARSET = StandardCharsets.UTF_8;

    private Class clazz;

    static {
        ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
        //如果遇到反序列化autoType is not support错误，请添加并修改一下包名到bean文件路径
        // ParserConfig.getGlobalInstance().addAccept("com.xxxxx.xxx");
    }

    public FastJson2JsonRedisSerializer(Class clazz) {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        }
        return JSONObject.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 JSONObject.parseObject(str, clazz);
    }

    public void setObjectMapper(ObjectMapper objectMapper) {
        Assert.notNull(objectMapper, "'objectMapper' must not be null");
        this.objectMapper = objectMapper;
    }

    protected JavaType getJavaType(Class clazz) {
        return TypeFactory.defaultInstance().constructType(clazz);
    }

}