spring boot redis RedisTemplate和ValueOperations对 string-value的操作
spring boot redis RedisTemplate和ValueOperations对 string-value的操作
参照redisdoc文档的方法进行 打造 http://redisdoc.com/ 与文档中string对应
写出通用接口 与实现类
完整demo连接
//配置缓存 和序列化操作
@Configuration
@EnableCaching
public class Cache extends CachingConfigurerSupport {
@Bean
public KeyGenerator keyGenerator() {
return new KeyGenerator() {
@Override
public Object generate(Object target, Method method, Object... params) {
StringBuilder sb = new StringBuilder();
sb.append(target.getClass().getName());
sb.append(method.getName());
for (Object obj : params) {
sb.append(obj.toString());
}
return sb.toString();
}
};
}
// @SuppressWarnings("rawtypes")
@Bean
public CacheManager cacheManager(RedisTemplate redisTemplate) {
RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
//设置缓存过期时间
//rcm.setDefaultExpiration(60);//秒
return rcm;
}
@Autowired
private RedisTemplate redisTemplate;
@Bean
public ValueOperations valueOperations(){
Jackson2JsonRedisSerializer
//接口public interface RedisString{
//设置
public void set(String key,Object o);
public void set(String key,Object o,String P,Long time);
//psetex 这个命令和 SEObjectEX 命令相似，但它以毫秒为单位设置 key 的生存时间
public void pSetEX(String key,Object o,long time);
// 获取
public Object get(String key);
//在字符串 后面追加
public void append(String key,Object o);
// 减1
public void decr(String key);
//减k
public void decrBy(String key,long k);
public void decrBy(String key,double k);
//递增1
public void incr(String key);
//递增n
public void incrBy(String key,long k);
public void incrBy(String key,double k);
/* 加k*/
public void increment(String key,long k);
//获取 位为K的值
public Boolean getBit(String key,long k);
//返回 key 中字符串值的子字符串
public String getRange(String key,long l,long r);
//获取和设置
public Object getSet(String key,Object o);
//获取多个key 的值
public List
//实现类
@Service
public class RedisStringImpl implements RedisString {
@Autowired
private RedisTemplate redisTemplate;
@Autowired
private ValueOperations opsForValue;
//设置key的值
@Override
public void set(String key, Object o) {
opsForValue.set(key,o);
}
@Override
public void set(String key, Object o, String P, Long time) {
if (P.equals("EX")){ //秒位单位
opsForValue.set(key,o,time, TimeUnit.SECONDS);
}else if(P.equals("PX")){ //毫秒
opsForValue.set(key,o,time,TimeUnit.MILLISECONDS);
}else if(P.equals("NX")){ //不存在的时候操作
if (opsForValue.get(key)==null) opsForValue.set(key,o);
}else if (P.equals("XX")){ //存在的时候操作
if (opsForValue.get(key)!=null) opsForValue.set(key,o);
}
}
//获取key的值
@Override
public Object get(String key) {
return opsForValue.get(key);
}
//在字符串 后面追加
@Override
public void append(String key,Object o) {
opsForValue.append(key,o.toString());
}
// 减1
@Override
public void decr(String key) {
opsForValue.increment(key,-1);
}
//减k
@Override
public void decrBy(String key, long k) {
opsForValue.increment(key,-k);
}
@Override
public void decrBy(String key, double k) {
opsForValue.increment(key,k);
}
//递增1
@Override
public void incr(String key) {
opsForValue.increment(key,1);
}
//递增n
@Override
public void incrBy(String key, long k) {
opsForValue.increment(key,k);
}
@Override
public void incrBy(String key, double k) {
opsForValue.increment(key,k);
}
// 加k
@Override
public void increment(String key, long k) {
opsForValue.increment(key,-1);
}
//获取 位为K的值
@Override
public Boolean getBit(String key, long k) {
return opsForValue.getBit(key,k);
}
@Override
public String getRange(String key, long l, long r) {
return opsForValue.get(key,l,r);
}
//获取和设置
@Override
public Object getSet(String key,Object o) {
return opsForValue.getAndSet(key,o);
}
//获取多个key 的值
@Override
public List //测试
@RestController
@RequestMapping("/user")
public class UserController {
@Autowired
RedisString redisString;
@RequestMapping("/set")
public String set(User user){
// redisString.set(user.getUsername(),user);
// System.out.println(user); //输出 传入的对象
redisString.set("yuwen",100); //设置语文成绩
System.out.println(redisString.get("yuwen")); //输出
redisString.incr("yuwen"); //自增1
System.out.println("自增1------"+redisString.get("yuwen")); //输出
redisString.decr("yuwen"); //自减1
System.out.println("自减1------"+redisString.get("yuwen")); //输出
redisString.incrBy("yuwen",10); //增加10
System.out.println("增10------"+redisString.get("yuwen")); //输出
redisString.decrBy("yuwen",10); //减加10
System.out.println("减10------"+redisString.get("yuwen")); //输出
redisString.pSetEX("shuxue",50,1000); //设置数学成绩位1秒存在时间
System.out.println("数学------"+redisString.get("shuxue")); //输出 用此类 下面get方法进行测试
redisString.setEX("yingyu",100,10); //英语存活时间10秒
return user.toString();
}
@RequestMapping("get")
public String get(String key){
System.out.println(redisString.get(key));
return "success";
}
}