redis存入ModelAndView

在Redis中存储ModelAndView，需要将其序列化为字节数组，然后将其存储在Redis中。可以使用Java中的ObjectOutputStream和ByteArrayOutputStream类将ModelAndView对象序列化为字节数组。以下是一个示例代码：

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;

import org.springframework.web.servlet.ModelAndView;

import redis.clients.jedis.Jedis;

public class RedisModelAndViewExample {

    public void saveModelAndViewToRedis(ModelAndView modelAndView, String key) {
        // Serialize the ModelAndView object
        byte[] serializedModelAndView = serialize(modelAndView);

        // Save the serialized ModelAndView object to Redis
        try (Jedis jedis = new Jedis("localhost")) {
            jedis.set(key.getBytes(), serializedModelAndView);
        }
    }

    public ModelAndView getModelAndViewFromRedis(String key) {
        // Retrieve the serialized ModelAndView object from Redis
        byte[] serializedModelAndView;
        try (Jedis jedis = new Jedis("localhost")) {
            serializedModelAndView = jedis.get(key.getBytes());
        }

        // Deserialize the ModelAndView object
        return deserialize(serializedModelAndView);
    }

    private byte[] serialize(ModelAndView modelAndView) {
        try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
             ObjectOutputStream oos = new ObjectOutputStream(baos)) {
            oos.writeObject(modelAndView);
            return baos.toByteArray();
        } catch (IOException e) {
            throw new RuntimeException("Failed to serialize ModelAndView", e);
        }
    }

    private ModelAndView deserialize(byte[] serializedModelAndView) {
        try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(serializedModelAndView))) {
            return (ModelAndView) ois.readObject();
        } catch (IOException | ClassNotFoundException e) {
            throw new RuntimeException("Failed to deserialize ModelAndView", e);
        }
    }
}

在上面的示例中，我们使用了Jedis客户端来连接Redis服务器，并使用set()和get()方法来存储和检索数据。`saveModelAndViewToRedis()`方法将ModelAndView对象序列化为字节数组，然后将其存储在Redis中。`getModelAndViewFromRedis()`方法从Redis中检索序列化的字节数组，并将其反序列化为ModelAndView对象。注意，我们使用了try-with-resources语句来自动关闭所有资源。