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本文介绍了一个使用Spring Data Redis实现的用户数据访问对象(UserDao)，该对象提供了增删改查等基本操作，同时利用Redis的Hash和List结构来存储用户信息及相关的爱好、班级列表。

package com.redis.dao;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.ListOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import com.redis.dto.User;

@Component
public class UserDao {

    @Autowired
    private RedisTemplate<String, User> redis;
    @Autowired
    private RedisTemplate<String, String> rediss;
    public List<User> list() {
        // TODO Auto-generated method stub
        List<User> list = new ArrayList<User>();
        HashOperations<String, String, User> opsForHash = redis.opsForHash();

        Collection<User> values = opsForHash.entries("user").values();
        for (User user : values) {
            list.add(user);
        }

        return list;
    }
    public List<String> getHobby() {
        // TODO Auto-generated method stub
        ListOperations<String, String> opsForList = rediss.opsForList();

//      opsForList.leftPush("hobby", "抽烟");
//      opsForList.leftPush("hobby", "喝酒");
//      opsForList.leftPush("hobby", "烫头");
//      opsForList.leftPush("hobby", "打架");
//      opsForList.leftPush("hobby", "赌博");
        List<String> range = opsForList.range("hobby", 0, -1);
        return range;
    }
    public List<String> getClazz() {
        // TODO Auto-generated method stub
        ListOperations<String, String> opsForList = rediss.opsForList();
//      opsForList.leftPush("clazz", "1605A");
//      opsForList.leftPush("clazz", "1605B");
//      opsForList.leftPush("clazz", "1605C");
//      opsForList.leftPush("clazz", "1605D");
//      opsForList.leftPush("clazz", "1605E");
        List<String> range = opsForList.range("clazz", 0, -1);
        return range;
    }
    public void add(User user) {
        System.out.println(user);
        // TODO Auto-generated method stub
        HashOperations<String, String, User> opsForHash = redis.opsForHash();
        opsForHash.put("user", user.getId(), user);
    }
    public void del(String id) {
        System.out.println(id);
        // TODO Auto-generated method stub
        HashOperations<String, String, User> opsForHash = redis.opsForHash();
        opsForHash.delete("user", id);
    }
    public void update(User user) {
        System.out.println(user);
        // TODO Auto-generated method stub
        HashOperations<String, String, User> opsForHash = redis.opsForHash();
        opsForHash.put("user", user.getId(), user);
    }
    public User getUser(String id) {
        System.out.println(id);
        // TODO Auto-generated method stub
        HashOperations<String, String, User> opsForHash = redis.opsForHash();
        User user = opsForHash.get("user", id);
        return user;
    }


}