基于RedisTemplate的redis工具类

RedisTempla是一个spring-redis模块下的操作redis的工具类，有点类似于jdbcTemplate。

但是操作起来略显麻烦，于是封装一个稍微简单点的redis工具类，直接上代码：

import org.springframework.data.redis.core.RedisTemplate;import org.springframework.data.redis.core.StringRedisTemplate;import org.springframework.data.redis.core.ValueOperations;import java.util.Set;import java.util.concurrent.TimeUnit;@SuppressWarnings("unchecked")public class RedisUtil {    private RedisTemplate<String, Object> redisTemplate;    private StringRedisTemplate stringRedisTemplate;    private String namespace = "work:";    public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {        this.redisTemplate = redisTemplate;    }    public void setStringRedisTemplate(StringRedisTemplate stringRedisTemplate) {        this.stringRedisTemplate = stringRedisTemplate;    }    public void setNamespace(String namespace) {        if (namespace != null)            this.namespace = namespace + ":";    }    public void set(String k, Object v, long time) {        String key = namespace + k;        if (v instanceof String && stringRedisTemplate != null) {            stringRedisTemplate.opsForValue().set(key, (String) v);        } else {            redisTemplate.opsForValue().set(key, v);        }        if (time > 0) redisTemplate.expire(key, time, TimeUnit.SECONDS);    }    public void set(String k, Object v) {        set(k, v, -1);    }    public boolean contains(String key) {        return redisTemplate.hasKey(namespace + key);    }    public String get(String k) {        if (stringRedisTemplate != null) {            return stringRedisTemplate.opsForValue().get(namespace + k);        } else {            return (String) redisTemplate.opsForValue().get(namespace + k);        }    }    public <T> T getObject(String k) {        ValueOperations<String, Object> valueOps = redisTemplate.opsForValue();        return (T) valueOps.get(namespace + k);    }    public void remove(String key) {        redisTemplate.delete(namespace + key);    }    public long getExpire(String key) {        return redisTemplate.getExpire(key);    }    public Set<String> keys(String pattern) {        return redisTemplate.keys(namespace + pattern);    }    public Long increment(String key, long delta) {        return redisTemplate.opsForValue().increment(namespace + key, delta);    }    public Double increment(String key, double delta) {        return redisTemplate.opsForValue().increment(namespace + key, delta);    }}

spring boot的配置：

    @Bean    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {        RedisTemplate<String, Object> template = new RedisTemplate<>();        template.setConnectionFactory(factory);        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);        RedisSerializer<String> stringSerializer = new StringRedisSerializer();        ObjectMapper om = new ObjectMapper();        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);        jackson2JsonRedisSerializer.setObjectMapper(om);        template.setValueSerializer(jackson2JsonRedisSerializer);        template.setKeySerializer(stringSerializer);        template.afterPropertiesSet();        return template;    }    @Bean    public StringRedisTemplate stringRedisTemplate(RedisConnectionFactory factory) {        StringRedisTemplate template = new StringRedisTemplate(factory);        RedisSerializer<String> stringSerializer = new StringRedisSerializer();        template.setKeySerializer(stringSerializer);        template.setValueSerializer(stringSerializer);        template.setHashKeySerializer(stringSerializer);        template.setKeySerializer(stringSerializer);        template.afterPropertiesSet();        return template;    }    @Bean    public RedisUtil redisUtil(RedisTemplate<String, Object> redisTemplate, StringRedisTemplate stringRedisTemplate) {        RedisUtil redisUtil = new RedisUtil();        redisUtil.setRedisTemplate(redisTemplate);        redisUtil.setStringRedisTemplate(stringRedisTemplate);        redisUtil.setNamespace("xxx");        return redisUtil;    }

调用：

@Autowiredprivate RedisUtil redisUtil;redisUtil.set("test", "abc");redisUtil.get("test");User user = new User();user.setId(1L);user.setName("Eric");redisUtil.set("user", user );User user1 = redisUtil.getObject("user");