注:原始资料来自于享学课堂,加上自己的理解和修改
目录
1、基本逻辑分析
1.1 文章投票功能模块需求
1.2 数据库设计
1.3 使用到的数据类型和相关指令
1.4 key设计思路
1.5、记录已投票用户,防重投
1.6 记录文章分数
1.7、Redis缓存设计实战
1.8、缓存数据变化
2、代码实现
2.1文章处理相关接口
2.2 具体接口实现
2.3 redis的工具类
1、基本逻辑分析
文章基本信息表 article
文章票数与分值表 vote_data
文章投票详表 vote_details
指令如下:
key的设计一般使用数据库名+主键,这样就能够保证key的唯一性
比如:set user:1 123
防止重复首先就想到set,zset类型数据,由于没有排行等需求,使用更加简单的set就能满足需求
由于涉及到分数的排行和文章发布时间的排行,首先想到的就是使用zset保存数据(默认分数从小到大升序排序)
- /**
- * RedisArticleService
- *
- * @author: honry.guan
- * @date: 2021/4/12 17:36
- */
- public interface RedisArticleService {
- /**
- * 文章发布,这里只是做个演示,一般存在数据库中
- *
- * @param title 标题
- * @param content 内容
- * @param link 链接
- * @param userId 用户ID
- * @return 文章的ID
- */
- String postArticle(String title, String content, String link, String userId);
- /**
- * 获取key所有数据
- *
- * @param key redis的key
- * @return 数据集
- */
- Map<String, String> hgetAll(String key);
- /**
- * 文章投票
- *
- * @param userId 用户id
- * @param articleId 文章id
- */
- void articleVote(String userId, String articleId);
- /**
- * 获取文章某个字段的值
- *
- * @param key redis的key
- * @param votes 字段field
- * @return 返回值
- */
- String hget(String key, String votes);
- /**
- * 文章列表查询(分页)
- *
- * @param page key
- * @return redis查询结果
- */
- List<Map<String, String>> getArticles(int page, String order);
- }
代码key说明:
文章1的投票人,不能重复投,使用set:jedis.sadd("voted:1" , userId);
文章对象信息,使用hash保存:jedis.hmset(article, articleData);
分数排行,看着排行,就想到zset:jedis.zadd("score:info", now + Constants.VOTE_SCORE, article);
时间排行,看着排行,就想到zset:jedis.zadd("time:", now, article);
- @Service
- public class RedisArticleServiceImpl implements RedisArticleService {
- @Resource
- private JedisUtils jedis;
- /**
- * 文章提交发布
- *
- * @param title 标题
- * @param content 内容
- * @param link 链接
- * @param userId 用户ID
- * @return 文章的ID
- */
- @Override
- public String postArticle(String title, String content, String link, String userId) {
- //article:001// articleId=1
- String articleId = String.valueOf(jedis.incr("article:"));
- //投票键: voted:
- String voted = "voted:" + articleId;
- //自己先给自己投一票
- jedis.sadd(voted, userId);
- jedis.expire(voted, Constants.ONE_WEEK_IN_SECONDS);
- long now = System.currentTimeMillis() / 1000;
- String article = "article:" + articleId;
- HashMap<String, String> articleData = new HashMap<String, String>(5);
- articleData.put("title", title);
- articleData.put("link", link);
- articleData.put("user", userId);
- articleData.put("now", String.valueOf(now));
- articleData.put("votes", "1");
- //添加一篇文章
- jedis.hmset(article, articleData);
- //增加分数排行,随机初始化了一个分数now + Constants.VOTE_SCORE
- jedis.zadd("score:info", now + Constants.VOTE_SCORE, article);
- //增加时间排行
- jedis.zadd("time:", now, article);
- return articleId;
- }
- /**
- * 文章投票
- *
- * @param userId 用户ID
- * @param article 文章ID(article:001)
- */
- @Override
- public void articleVote(String userId, String article) {
- //计算投票截止时间
- long cutoff = (System.currentTimeMillis() / 1000) - Constants.ONE_WEEK_IN_SECONDS;
- //检查是否还可以对文章进行投票,如果该文章的发布时间比截止时间小,则已过期,不能进行投票
- if (jedis.zscore("time:", article) < cutoff) {
- return;
- }
- //获取文章主键idarticle:1 1
- String articleId = article.substring(article.indexOf(':') + 1);
- //添加投票人,投票人添加成功,才增加分数和投票数
- if (jedis.sadd("voted:" + articleId, userId) == 1) {
- //分值加400
- jedis.zincrby("score:info", Constants.VOTE_SCORE, article);
- //投票数加1
- jedis.hincrBy(article, "votes", 1L);
- }
- }
- /**
- * 文章列表查询(分页)
- *
- * @param page key
- * @return redis查询结果
- */
- @Override
- public List<Map<String, String>> getArticles(int page, String key) {
- int start = (page - 1) * Constants.ARTICLES_PER_PAGE;
- int end = start + Constants.ARTICLES_PER_PAGE - 1;
- //倒序查询出投票数最高的文章,zset有序集合,分值递减
- Set<String> ids = jedis.zrevrange(key, start, end);
- List<Map<String, String>> articles = new ArrayList<>();
- for (String id : ids) {
- Map<String, String> articleData = jedis.hgetAll(id);
- articleData.put("id", id);
- articles.add(articleData);
- }
- return articles;
- }
- @Override
- public String hget(String key, String feild) {
- return jedis.hget(key, feild);
- }
- @Override
- public Map<String, String> hgetAll(String key) {
- return jedis.hgetAll(key);
- }
- }
- package com.james.cache.utils;
- import java.util.List;
- import java.util.Map;
- import java.util.Set;
- import org.springframework.stereotype.Component;
- import redis.clients.jedis.Jedis;
- import redis.clients.jedis.JedisPool;
- import redis.clients.jedis.JedisPoolConfig;
- import redis.clients.jedis.Pipeline;
- import redis.clients.jedis.BinaryClient.LIST_POSITION;
- @Component
- public class JedisUtils {
- private JedisPool pool = null;
- private String ip = "192.168.42.111";
- private int port = 6379;
- private String auth = "12345678";
- /**
- * 传入ip和端口号构建redis 连接
- *
- * @param ip
- * ip
- * @param prot
- * 端口
- */
- public JedisUtils() {
- if (pool == null) {
- JedisPoolConfig config = new JedisPoolConfig();
- config.setMaxTotal(500);
- config.setMaxIdle(5);
- config.setMaxWaitMillis(100);
- config.setTestOnBorrow(true);
- pool = new JedisPool(config, this.ip, this.port, 100000, this.auth);
- }
- }
- /**
- * 通过key获取储存在redis中的value 并释放连
- *
- * @param key
- * @return 成功返回value 失败返回null
- */
- public String get(String key) {
- Jedis jedis = null;
- String value = null;
- try {
- jedis = pool.getResource();
- value = jedis.get(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return value;
- }
- /**
- * 向redis存入key和value,并释放连接资 如果key已经存在 则覆
- *
- * @param key
- * @param value
- * @return 成功 返回OK 失败返回 0
- */
- public String set(String key, String value) {
- Jedis jedis = null;
- try {
- jedis = pool.getResource();//每次操作时向pool借用个jedis对象,用完即还?
- return jedis.set(key, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- return "0";
- } finally {
- returnResource(pool, jedis);
- }
- }
- /**
- * 向redis存入序列化的key和value,并释放连接资 如果key已经存在 则覆
- *
- * @param key
- * @param value
- * @return 成功 返回OK 失败返回 0
- */
- public String setSerializer(byte[] keyBytes, byte[] valueBytes) {
- Jedis jedis = null;
- try {
- jedis = pool.getResource();
- return jedis.set(keyBytes, valueBytes);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- return "0";
- } finally {
- returnResource(pool, jedis);
- }
- }
- /**
- * 通过序列化key获取储存在redis中的序列化value 并释放连
- *
- * @param key
- * @return 成功返回value 失败返回null
- */
- public byte[] getSerializer(byte[] key) {
- Jedis jedis = null;
- byte[] value = null;
- try {
- jedis = pool.getResource();
- value = jedis.get(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return value;
- }
- /**
- * 删除指定的key,也可以传入一个包含key的数
- *
- * @param keys
- * 个key 也可以使 string 数组
- * @return 返回删除成功的个
- */
- public Long del(String... keys) {
- Jedis jedis = null;
- try {
- jedis = pool.getResource();
- return jedis.del(keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- return 0L;
- } finally {
- returnResource(pool, jedis);
- }
- }
- /**
- * 通过key向指定的value值追加?
- *
- * @param key
- * @param str
- * @return 成功返回 添加后value的长 失败 返回 添加 value 的长 异常返回0L
- */
- public Long append(String key, String str) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.append(key, str);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- return 0L;
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 判断key是否存在
- *
- * @param key
- * @return true OR false
- */
- public Boolean exists(String key) {
- Jedis jedis = null;
- try {
- jedis = pool.getResource();
- return jedis.exists(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- return false;
- } finally {
- returnResource(pool, jedis);
- }
- }
- /**
- * 设置key value,如果key已经存在则返0,nx==> not exist
- *
- * @param key
- * @param value
- * @return 成功返回1 如果存在 发生异常 返回 0
- */
- public Long setnx(String key, String value) {
- Jedis jedis = null;
- try {
- jedis = pool.getResource();
- return jedis.setnx(key, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- return 0L;
- } finally {
- returnResource(pool, jedis);
- }
- }
- /**
- * 设置key value并制定这个键值的有效
- *
- * @param key
- * @param value
- * @param seconds
- * 单位:
- * @return 成功返回OK 失败和异常返回null
- */
- public String setex(String key, String value, int seconds) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.setex(key, seconds, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key 和offset 从指定的位置始将原先value替换 下标0,offset表示从offset下标始替
- * 如果替换的字符串长度过小则会这样 example: value : bigsea@zto.cn str : abc 从下7始替 则结果为
- * RES : bigsea.abc.cn
- *
- * @param key
- * @param str
- * @param offset
- * 下标位置
- * @return 返回替换 value 的长
- */
- public Long setrange(String key, String str, int offset) {
- Jedis jedis = null;
- try {
- jedis = pool.getResource();
- return jedis.setrange(key, offset, str);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- return 0L;
- } finally {
- returnResource(pool, jedis);
- }
- }
- /**
- * 通过批量的key获取批量的value
- *
- * @param keys
- * string数组 也可以是个key
- * @return 成功返回value的集, 失败返回null的集 ,异常返回
- */
- public List<String> mget(String... keys) {
- Jedis jedis = null;
- List<String> values = null;
- try {
- jedis = pool.getResource();
- values = jedis.mget(keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return values;
- }
- /**
- * 批量的设置key:value,可以 example: obj.mset(new
- * String[]{"key2","value1","key2","value2"})
- *
- * @param keysvalues
- * @return 成功返回OK 失败 异常 返回 null
- *
- */
- public String mset(String... keysvalues) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.mset(keysvalues);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 删除多个字符串key 并释放连
- *
- * @param key*
- * @return 成功返回value 失败返回null
- */
- public boolean mdel(List<String> keys) {
- Jedis jedis = null;
- boolean flag = false;
- try {
- jedis = pool.getResource();//从连接�用Jedis对象
- Pipeline pipe = jedis.pipelined();//获取jedis对象的pipeline对象
- for(String key:keys){
- pipe.del(key); //将多个key放入pipe删除指令
- }
- pipe.sync(); //执行命令,完全此时pipeline对象的远程调
- flag = true;
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return flag;
- }
- /**
- * 批量的设置key:value,可以,如果key已经存在则会失败,操作会回 example: obj.msetnx(new
- * String[]{"key2","value1","key2","value2"})
- *
- * @param keysvalues
- * @return 成功返回1 失败返回0
- */
- public Long msetnx(String... keysvalues) {
- Jedis jedis = null;
- Long res = 0L;
- try {
- jedis = pool.getResource();
- res = jedis.msetnx(keysvalues);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 设置key的?,并返回一个旧
- *
- * @param key
- * @param value
- * @return 旧? 如果key不存 则返回null
- */
- public String getset(String key, String value) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.getSet(key, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过下标 和key 获取指定下标位置 value
- *
- * @param key
- * @param startOffset
- * 始位 0 负数表示从右边开始截
- * @param endOffset
- * @return 如果没有返回null
- */
- public String getrange(String key, int startOffset, int endOffset) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.getrange(key, startOffset, endOffset);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key 对value进行加?+1操作,当value不是int类型时会返回错误,当key不存在是则value1
- *
- * @param key
- * @return 加�后的结
- */
- public Long incr(String key) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.incr(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key给指定的value加?,如果key不存,则这是value为该
- *
- * @param key
- * @param integer
- * @return
- */
- public Long incrBy(String key, Long integer) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.incrBy(key, integer);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 对key的�做减减操作,如果key不存,则设置key-1
- *
- * @param key
- * @return
- */
- public Long decr(String key) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.decr(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 减去指定的?
- *
- * @param key
- * @param integer
- * @return
- */
- public Long decrBy(String key, Long integer) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.decrBy(key, integer);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key获取value值的长度
- *
- * @param key
- * @return 失败返回null
- */
- public Long serlen(String key) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.strlen(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key给field设置指定的?,如果key不存,则先创建
- *
- * @param key
- * @param field
- * 字段
- * @param value
- * @return 如果存在返回0 异常返回null
- */
- public Long hset(String key, String field, String value) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hset(key, field, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key给field设置指定的?,如果key不存在则先创,如果field已经存在,返回0
- *
- * @param key
- * @param field
- * @param value
- * @return
- */
- public Long hsetnx(String key, String field, String value) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hsetnx(key, field, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key同时设置 hash的多个field
- *
- * @param key
- * @param hash
- * @return 返回OK 异常返回null
- */
- public String hmset(String key, Map<String, String> hash) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hmset(key, hash);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key field 获取指定 value
- *
- * @param key
- * @param field
- * @return 没有返回null
- */
- public String hget(String key, String field) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hget(key, field);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key fields 获取指定的value 如果没有对应的value则返回null
- *
- * @param key
- * @param fields
- * 可以 个String 也可以是 String数组
- * @return
- */
- public List<String> hmget(String key, String... fields) {
- Jedis jedis = null;
- List<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hmget(key, fields);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key给指定的field的value加上给定的?
- *
- * @param key
- * @param field
- * @param value
- * @return
- */
- public Long hincrby(String key, String field, Long value) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hincrBy(key, field, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key和field判断是否有指定的value存在
- *
- * @param key
- * @param field
- * @return
- */
- public Boolean hexists(String key, String field) {
- Jedis jedis = null;
- Boolean res = false;
- try {
- jedis = pool.getResource();
- res = jedis.hexists(key, field);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回field的数
- *
- * @param key
- * @return
- */
- public Long hlen(String key) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hlen(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- public Map<String,String> hgetAll(String key) {
- Jedis jedis = null;
- Map<String,String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hgetAll(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key 删除指定 field
- *
- * @param key
- * @param fields
- * 可以 field 也可以是 个数
- * @return
- */
- public Long hdel(String key, String... fields) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hdel(key, fields);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- public Set<String> zrange(String key, Long start, Long end) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zrange(key, start, end);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回有的field
- *
- * @param key
- * @return
- */
- public Set<String> hkeys(String key) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hkeys(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回有和key有关的value
- *
- * @param key
- * @return
- */
- public List<String> hvals(String key) {
- Jedis jedis = null;
- List<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hvals(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key获取有的field和value
- *
- * @param key
- * @return
- */
- public Map<String, String> hgetall(String key) {
- Jedis jedis = null;
- Map<String, String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.hgetAll(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key向list头部添加字符
- * </p>
- *
- * @param key
- * @param strs
- * 可以使一个string 也可以使string数组
- * @return 返回list的value个数
- */
- public Long lpush(String key, String... strs) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.lpush(key, strs);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key向list尾部添加字符
- * </p>
- *
- * @param key
- * @param strs
- * 可以使一个string 也可以使string数组
- * @return 返回list的value个数
- */
- public Long rpush(String key, String... strs) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.rpush(key, strs);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key在list指定的位置之前或者之 添加字符串元
- * </p>
- *
- * @param key
- * @param where
- * LIST_POSITION枚举类型
- * @param pivot
- * list里面的value
- * @param value
- * 添加的value
- * @return
- */
- public Long linsert(String key, LIST_POSITION where, String pivot, String value) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.linsert(key, where, pivot, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key设置list指定下标位置的value
- * </p>
- * <p>
- * 如果下标超过list里面value的个数则报错
- * </p>
- *
- * @param key
- * @param index
- * 0
- * @param value
- * @return 成功返回OK
- */
- public String lset(String key, Long index, String value) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.lset(key, index, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key从对应的list中删除指定的count value相同的元
- * </p>
- *
- * @param key
- * @param count
- * 当count0时删除全
- * @param value
- * @return 返回被删除的个数
- */
- public Long lrem(String key, long count, String value) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.lrem(key, count, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key保留list中从strat下标始到end下标结束的value
- * </p>
- *
- * @param key
- * @param start
- * @param end
- * @return 成功返回OK
- */
- public String ltrim(String key, long start, long end) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.ltrim(key, start, end);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key从list的头部删除一个value,并返回该value
- * </p>
- *
- * @param key
- * @return
- */
- public String lpop(String key) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.lpop(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key从list尾部删除个value,并返回该元素
- * </p>
- *
- * @param key
- * @return
- */
- public String rpop(String key) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.rpop(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key从一个list的尾部删除一个value并添加到另一个list的头,并返回该value
- * </p>
- * <p>
- * 如果第一个list为空或�不存在则返回null
- * </p>
- *
- * @param srckey
- * @param dstkey
- * @return
- */
- public String rpoplpush(String srckey, String dstkey) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.rpoplpush(srckey, dstkey);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取list中指定下标位置的value
- * </p>
- *
- * @param key
- * @param index
- * @return 如果没有返回null
- */
- public String lindex(String key, long index) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.lindex(key, index);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key返回list的长
- * </p>
- *
- * @param key
- * @return
- */
- public Long llen(String key) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.llen(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取list指定下标位置的value
- * </p>
- * <p>
- * 如果start 0 end -1 则返回全部的list中的value
- * </p>
- *
- * @param key
- * @param start
- * @param end
- * @return
- */
- public List<String> lrange(String key, long start, long end) {
- Jedis jedis = null;
- List<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.lrange(key, start, end);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key向指定的set中添加value
- * </p>
- *
- * @param key
- * @param members
- * 可以是一个String 也可以是个String数组
- * @return 添加成功的个
- */
- public Long sadd(String key, String... members) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sadd(key, members);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- public void expire(String key, int times) {
- Jedis jedis = null;
- try {
- jedis = pool.getResource();
- jedis.expire(key, times);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- }
- /**
- * <p>
- * 通过key删除set中对应的value
- * </p>
- *
- * @param key
- * @param members
- * 可以是一个String 也可以是个String数组
- * @return 删除的个
- */
- public Long srem(String key, String... members) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.srem(key, members);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key随机删除个set中的value并返回该
- * </p>
- *
- * @param key
- * @return
- */
- public String spop(String key) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.spop(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取set中的差集
- * </p>
- * <p>
- * 以第个set为标
- * </p>
- *
- * @param keys
- * 可以使一个string 则返回set中所有的value 也可以是string数组
- * @return
- */
- public Set<String> sdiff(String... keys) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sdiff(keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取set中的差集并存入到另一个key
- * </p>
- * <p>
- * 以第个set为标
- * </p>
- *
- * @param dstkey
- * 差集存入的key
- * @param keys
- * 可以使一个string 则返回set中所有的value 也可以是string数组
- * @return
- */
- public Long sdiffstore(String dstkey, String... keys) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sdiffstore(dstkey, keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取指定set中的交集
- * </p>
- *
- * @param keys
- * 可以使一个string 也可以是个string数组
- * @return
- */
- public Set<String> sinter(String... keys) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sinter(keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取指定set中的交集 并将结果存入新的set
- * </p>
- *
- * @param dstkey
- * @param keys
- * 可以使一个string 也可以是个string数组
- * @return
- */
- public Long sinterstore(String dstkey, String... keys) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sinterstore(dstkey, keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key返回有set的并
- * </p>
- *
- * @param keys
- * 可以使一个string 也可以是个string数组
- * @return
- */
- public Set<String> sunion(String... keys) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sunion(keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key返回有set的并,并存入到新的set
- * </p>
- *
- * @param dstkey
- * @param keys
- * 可以使一个string 也可以是个string数组
- * @return
- */
- public Long sunionstore(String dstkey, String... keys) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sunionstore(dstkey, keys);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key将set中的value移除并添加到第二个set
- * </p>
- *
- * @param srckey
- * 要移除的
- * @param dstkey
- * 添加
- * @param member
- * set中的value
- * @return
- */
- public Long smove(String srckey, String dstkey, String member) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.smove(srckey, dstkey, member);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取set中value的个
- * </p>
- *
- * @param key
- * @return
- */
- public Long scard(String key) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.scard(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key判断value是否是set中的元素
- * </p>
- *
- * @param key
- * @param member
- * @return
- */
- public Boolean sismember(String key, String member) {
- Jedis jedis = null;
- Boolean res = null;
- try {
- jedis = pool.getResource();
- res = jedis.sismember(key, member);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取set中随机的value,不删除元
- * </p>
- *
- * @param key
- * @return
- */
- public String srandmember(String key) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.srandmember(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * <p>
- * 通过key获取set中所有的value
- * </p>
- *
- * @param key
- * @return
- */
- public Set<String> smembers(String key) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.smembers(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key向zset中添加value,score,其中score就是用来排序 如果该value已经存在则根据score更新元素
- *
- * @param key
- * @param scoreMembers
- * @return
- */
- public Long zadd(String key, Map<String,Double> scoreMembers) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zadd(key, scoreMembers);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key向zset中添加value,score,其中score就是用来排序 如果该value已经存在则根据score更新元素
- *
- * @param key
- * @param score
- * @param member
- * @return
- */
- public Long zadd(String key, double score, String member) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zadd(key, score, member);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key删除在zset中指定的value
- *
- * @param key
- * @param members
- * 可以使一个string 也可以是个string数组
- * @return
- */
- public Long zrem(String key, String... members) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zrem(key, members);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key增加该zset中value的score的?
- *
- * @param key
- * @param score
- * @param member
- * @return
- */
- public Double zincrby(String key, double score, String member) {
- Jedis jedis = null;
- Double res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zincrby(key, score, member);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- public long hincrBy(String key, String field, long value) {
- Jedis jedis = null;
- long res = 0l;
- try {
- jedis = pool.getResource();
- res = jedis.hincrBy(key, field, value);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回zset中value的排 下标从小到大排序
- *
- * @param key
- * @param member
- * @return
- */
- public Long zrank(String key, String member) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zrank(key, member);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回zset中value的排 下标从大到小排序
- *
- * @param key
- * @param member
- * @return
- */
- public Long zrevrank(String key, String member) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zrevrank(key, member);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key将获取score从start到end中zset的value socre从大到小排序 当start0 end-1时返回全
- *
- * @param key
- * @param start
- * @param end
- * @return
- */
- public Set<String> zrevrange(String key, long start, long end) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zrevrange(key, start, end);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回指定score内zset中的value
- *
- * @param key
- * @param max
- * @param min
- * @return
- */
- public Set<String> zrangebyscore(String key, String max, String min) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zrevrangeByScore(key, max, min);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回指定score内zset中的value
- *
- * @param key
- * @param max
- * @param min
- * @return
- */
- public Set<String> zrangeByScore(String key, double max, double min) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zrevrangeByScore(key, max, min);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 返回指定区间内zset中value的数
- *
- * @param key
- * @param min
- * @param max
- * @return
- */
- public Long zcount(String key, String min, String max) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zcount(key, min, max);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key返回zset中的value个数
- *
- * @param key
- * @return
- */
- public Long zcard(String key) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zcard(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key获取zset中value的score
- *
- * @param key
- * @param member
- * @return
- */
- public Double zscore(String key, String member) {
- Jedis jedis = null;
- Double res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zscore(key, member);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key删除给定区间内的元素
- *
- * @param key
- * @param start
- * @param end
- * @return
- */
- public Long zremrangeByRank(String key, long start, long end) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zremrangeByRank(key, start, end);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key删除指定score内的元素
- *
- * @param key
- * @param start
- * @param end
- * @return
- */
- public Long zremrangeByScore(String key, double start, double end) {
- Jedis jedis = null;
- Long res = null;
- try {
- jedis = pool.getResource();
- res = jedis.zremrangeByScore(key, start, end);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 返回满足pattern表达式的有key keys(*) 返回有的key
- *
- * @param pattern
- * @return
- */
- public Set<String> keys(String pattern) {
- Jedis jedis = null;
- Set<String> res = null;
- try {
- jedis = pool.getResource();
- res = jedis.keys(pattern);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 通过key判断值得类型
- *
- * @param key
- * @return
- */
- public String type(String key) {
- Jedis jedis = null;
- String res = null;
- try {
- jedis = pool.getResource();
- res = jedis.type(key);
- } catch (Exception e) {
- pool.returnBrokenResource(jedis);
- e.printStackTrace();
- } finally {
- returnResource(pool, jedis);
- }
- return res;
- }
- /**
- * 返还到连接池
- *
- * @param pool
- * @param redis
- */
- public static void returnResource(JedisPool pool, Jedis jedis) {
- if (jedis != null) {
- pool.returnResource(jedis);
- }
- }
- }
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