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Redis缓存 ava-Jedis操作Redis,基本操作以及 实现对象保存
源代码下载: http://download.csdn.net/detail/jiangtao_st/7623113
1、Maven配置
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- <dependency>
- <groupId>redis.clients</groupId>
- <artifactId>jedis</artifactId>
- <version>2.5.0</version>
- </dependency>
- <dependency>
- <groupId>com.alibaba</groupId>
- <artifactId>fastjson</artifactId>
- <version>1.1.41</version>
- </dependency></span>
2、Properties 配置文件
redis.pool.maxActive=100
redis.pool.maxIdle=20
redis.pool.maxWait=3000
redis.ip=localhost
redis.port=6379
3、代码具体实现的Client
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- /**
- *
- * <p>
- * Redis客户端访问
- * </p>
- *
- * @author 卓轩
- * @创建时间:2014年7月11日
- * @version: V1.0
- */
- public class RedisClient {
- public static JedisPool jedisPool; // 池化管理jedis链接池
- static {
- //读取相关的配置
- ResourceBundle resourceBundle = ResourceBundle.getBundle("redis");
- int maxActive = Integer.parseInt(resourceBundle.getString("redis.pool.maxActive"));
- int maxIdle = Integer.parseInt(resourceBundle.getString("redis.pool.maxIdle"));
- int maxWait = Integer.parseInt(resourceBundle.getString("redis.pool.maxWait"));
- String ip = resourceBundle.getString("redis.ip");
- int port = Integer.parseInt(resourceBundle.getString("redis.port"));
- JedisPoolConfig config = new JedisPoolConfig();
- //设置最大连接数
- config.setMaxTotal(maxActive);
- //设置最大空闲数
- config.setMaxIdle(maxIdle);
- //设置超时时间
- config.setMaxWaitMillis(maxWait);
- //初始化连接池
- jedisPool = new JedisPool(config, ip, port);
- }
- /**
- * 向缓存中设置字符串内容
- * @param key key
- * @param value value
- * @return
- * @throws Exception
- */
- public static boolean set(String key,String value) throws Exception{
- Jedis jedis = null;
- try {
- jedis = jedisPool.getResource();
- jedis.set(key, value);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- jedisPool.returnResource(jedis);
- }
- }
- /**
- * 向缓存中设置对象
- * @param key
- * @param value
- * @return
- */
- public static boolean set(String key,Object value){
- Jedis jedis = null;
- try {
- String objectJson = JSON.toJSONString(value);
- jedis = jedisPool.getResource();
- jedis.set(key, objectJson);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- jedisPool.returnResource(jedis);
- }
- }
- /**
- * 删除缓存中得对象,根据key
- * @param key
- * @return
- */
- public static boolean del(String key){
- Jedis jedis = null;
- try {
- jedis = jedisPool.getResource();
- jedis.del(key);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- jedisPool.returnResource(jedis);
- }
- }
- /**
- * 根据key 获取内容
- * @param key
- * @return
- */
- public static Object get(String key){
- Jedis jedis = null;
- try {
- jedis = jedisPool.getResource();
- Object value = jedis.get(key);
- return value;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- jedisPool.returnResource(jedis);
- }
- }
- /**
- * 根据key 获取对象
- * @param key
- * @return
- */
- public static <T> T get(String key,Class<T> clazz){
- Jedis jedis = null;
- try {
- jedis = jedisPool.getResource();
- String value = jedis.get(key);
- return JSON.parseObject(value, clazz);
- } catch (Exception e) {
- e.printStackTrace();
- return null;
- }finally{
- jedisPool.returnResource(jedis);
- }
- }
- }
4、Sharding 分片管理
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- /**
- *
- * <p>
- * Sharding Redis Client 工具类
- * </p>
- *
- * @author 卓轩
- * @创建时间:2014年7月11日
- * @version: V1.0
- */
- public class ShardingRedisClient {
- private static ShardedJedisPool shardedJedisPool;
- static {
- // 读取相关的配置
- ResourceBundle resourceBundle = ResourceBundle.getBundle("redis");
- int maxActive = Integer.parseInt(resourceBundle.getString("redis.pool.maxActive"));
- int maxIdle = Integer.parseInt(resourceBundle.getString("redis.pool.maxIdle"));
- int maxWait = Integer.parseInt(resourceBundle.getString("redis.pool.maxWait"));
- String ip = resourceBundle.getString("redis.ip");
- int port = Integer.parseInt(resourceBundle.getString("redis.port"));
- //设置配置
- JedisPoolConfig config = new JedisPoolConfig();
- config.setMaxTotal(maxActive);
- config.setMaxIdle(maxIdle);
- config.setMaxWaitMillis(maxWait);
- //设置分片元素信息
- JedisShardInfo shardInfo1 = new JedisShardInfo(ip,port);
- JedisShardInfo shardInfo2 = new JedisShardInfo(ip,port);
- List<JedisShardInfo> list = new ArrayList<JedisShardInfo>();
- list.add(shardInfo1);
- list.add(shardInfo2);
- shardedJedisPool = new ShardedJedisPool(config, list);
- }
- /**
- * 向缓存中设置字符串内容
- * @param key key
- * @param value value
- * @return
- * @throws Exception
- */
- public static boolean set(String key,String value) throws Exception{
- ShardedJedis jedis = null;
- try {
- jedis = shardedJedisPool.getResource();
- jedis.set(key, value);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- shardedJedisPool.returnResource(jedis);
- }
- }
- /**
- * 向缓存中设置对象
- * @param key
- * @param value
- * @return
- */
- public static boolean set(String key,Object value){
- ShardedJedis jedis = null;
- try {
- String objectJson = JSON.toJSONString(value);
- jedis = shardedJedisPool.getResource();
- jedis.set(key, objectJson);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- shardedJedisPool.returnResource(jedis);
- }
- }
- /**
- * 删除缓存中得对象,根据key
- * @param key
- * @return
- */
- public static boolean del(String key){
- ShardedJedis jedis = null;
- try {
- jedis = shardedJedisPool.getResource();
- jedis.del(key);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- shardedJedisPool.returnResource(jedis);
- }
- }
- /**
- * 根据key 获取内容
- * @param key
- * @return
- */
- public static Object get(String key){
- ShardedJedis jedis = null;
- try {
- jedis = shardedJedisPool.getResource();
- Object value = jedis.get(key);
- return value;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }finally{
- shardedJedisPool.returnResource(jedis);
- }
- }
- /**
- * 根据key 获取对象
- * @param key
- * @return
- */
- public static <T> T get(String key,Class<T> clazz){
- ShardedJedis jedis = null;
- try {
- jedis = shardedJedisPool.getResource();
- String value = jedis.get(key);
- return JSON.parseObject(value, clazz);
- } catch (Exception e) {
- e.printStackTrace();
- return null;
- }finally{
- shardedJedisPool.returnResource(jedis);
- }
- }
- }
5、 单元测试、保存对象、写入对象
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- /**
- *
- * <p>
- * 测试独立redis 客户端
- * </p>
- *
- * @author 卓轩
- * @创建时间:2014年7月11日
- * @version: V1.0
- */
- public class SimpleClient {
- @Test
- public void userCache(){
- //向缓存中保存对象
- UserDO zhuoxuan = new UserDO();
- zhuoxuan.setUserId(113445);
- zhuoxuan.setSex(1);
- zhuoxuan.setUname("卓轩");
- zhuoxuan.setUnick("zhuoxuan");
- zhuoxuan.setEmail("zhuoxuan@mogujie.com");
- //调用方法处理
- boolean reusltCache = RedisClient.set("zhuoxuan", zhuoxuan);
- if (reusltCache) {
- System.out.println("向缓存中保存对象成功。");
- }else{
- System.out.println("向缓存中保存对象失败。");
- }
- }
- @Test
- public void getUserInfo(){
- UserDO zhuoxuan = RedisClient.get("zhuoxuan",UserDO.class);
- if(zhuoxuan != null){
- System.out.println("从缓存中获取的对象," + zhuoxuan.getUname() + "@" + zhuoxuan.getEmail());
- }
- }
- }
Redis缓存 ava-Jedis操作Redis,基本操作以及 实现对象保存
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