标签:set bean second collect config windows tor new cat
想做一个秒杀项目,问了几个大佬要了项目视频,结果,自己本地实践的时候,发现不太一样,所以写下这篇,为以后做准备。
习惯用SpringBoot的小伙伴都知道,需要配置Maven,添加几个dependency。
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
# Redis数据库索引(默认为0)
spring.redis.database=0
# Redis服务器地址
spring.redis.host=localhost
# Redis服务器连接端口
spring.redis.port=6379
# Redis服务器连接密码(默认为空)
spring.redis.password=
# 连接池最大连接数(使用负值表示没有限制)
spring.redis.pool.max-active=200
# 连接池最大阻塞等待时间(使用负值表示没有限制)
spring.redis.pool.max-wait=-1
# 连接池中的最大空闲连接
spring.redis.pool.max-idle=10
# 连接池中的最小空闲连接
spring.redis.pool.min-idle=0
# 连接超时时间(毫秒)
spring.redis.timeout=1000
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
/**
* @author: Tu9ohost
*/
@Configuration
public class RedisConfig {
@Bean
@SuppressWarnings("all")
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory){
RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
template.setConnectionFactory(factory);
Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
ObjectMapper om = new ObjectMapper();
om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
template.setKeySerializer(stringRedisSerializer);
template.setHashKeySerializer(stringRedisSerializer);
template.setValueSerializer(jackson2JsonRedisSerializer);
template.setHashValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
/**
* @author: Tu9ohost
*/
@Component
public class RedisUtil {
@Autowired
private RedisTemplate<String,Object> redisTemplate;
/**
* 指定缓存失效时间
* @param key
* @param time
* @return
*/
public boolean expire(String key, long time){
try{
if (time > 0){
redisTemplate.expire(key,time, TimeUnit.SECONDS);
}
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 根据key获取过期时间
* @param key
* @return
*/
public long getExpire(String key){
return redisTemplate.getExpire(key,TimeUnit.SECONDS);
}
/**
*
* @param key
* @return
*/
public boolean hasKey(String key){
try {
return redisTemplate.hasKey(key);
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 删除缓存
* @param key
*/
@SuppressWarnings("unchecked")
public void del(String... key){
if (key != null && key.length > 0){
if (key.length == 1){
redisTemplate.delete(key[0]);
}else{
redisTemplate.delete(CollectionUtils.arrayToList(key));
}
}
}
/**
* 普通缓存获取
* @param key
* @return
*/
public Object get(String key){
return key == null ? null : redisTemplate.opsForValue().get(key);
}
/**
* 普通缓存放入
* @param key
* @param value
* @return
*/
public boolean set(String key, Object value){
try {
redisTemplate.opsForValue().set(key,value);
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 普通缓存放入并设置时间
* @param key
* @param value
* @param time
* @return
*/
public boolean set(String key,Object value, long time){
try {
if (time > 0){
redisTemplate.opsForValue().set(key,value,time,TimeUnit.SECONDS);
}else{
set(key,value);
}
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 递增
* @param key
* @param delta
* @return
*/
public long incr(String key, long delta){
if (delta < 0){
throw new RuntimeException("递增因子必须大于0");
}
return redisTemplate.opsForValue().increment(key,delta);
}
public long decr(String key, long delta){
if (delta < 0){
throw new RuntimeException("递减因子必须大于0");
}
return redisTemplate.opsForValue().increment(key,-delta);
}
/**
* HashGet
* @param key
* @param item
* @return
*/
public Object hget(String key,String item){
return redisTemplate.opsForHash().get(key,item);
}
/**
* 获取hashKey对应的所有键值
* @param key
* @return
*/
public Map<Object,Object> hmget(String key){
return redisTemplate.opsForHash().entries(key);
}
/**
* HashSet
* @param key
* @param map
* @return
*/
public boolean hmset(String key,Map<String,Object> map){
try {
redisTemplate.opsForHash().putAll(key,map);
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* HashSet 并设置时间
* @param key
* @param map
* @param time
* @return
*/
public boolean hmset(String key, Map<String,Object> map,long time){
try {
redisTemplate.opsForHash().putAll(key,map);
if (time > 0){
expire(key,time);
}
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
* @param key
* @param item
* @param value
* @return
*/
public boolean hset(String key,String item, Object value){
try {
redisTemplate.opsForHash().put(key,item,value);
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
* @param key
* @param item
* @param value
* @param time
* @return
*/
public boolean hset(String key,String item,Object value,long time){
try {
redisTemplate.opsForHash().put(key,item,value);
if (time > 0){
expire(key,time);
}
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 删除hash表中的值
* @param key
* @param item
*/
public void hdel(String key, Object... item){
redisTemplate.opsForHash().delete(key,item);
}
/**
* 判断hash表中是否有该项的值
* @param key
* @param item
* @return
*/
public boolean hHasKey(String key,String item){
return redisTemplate.opsForHash().hasKey(key,item);
}
/**
* hsah递增 如果不存在,就会创建一个 并把新增后的值返回
* @param key
* @param item
* @param by
* @return
*/
public double hincr(String key,String item,double by){
return redisTemplate.opsForHash().increment(key,item,by);
}
/**
* hash递减
* @param key
* @param item
* @param by
* @return
*/
public double hdecr(String key,String item,double by){
return redisTemplate.opsForHash().increment(key,item,-by);
}
/**
* 根据key获取Set中的所有值
* @param key
* @return
*/
public Set<Object> sGet(String key){
try {
return redisTemplate.opsForSet().members(key);
}catch (Exception e){
e.printStackTrace();
return null;
}
}
/**
* 根据value从一个set中查询,是否存在
* @param key
* @param value
* @return
*/
public boolean sHasKey(String key,Object value){
try {
return redisTemplate.opsForSet().isMember(key,value);
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 将数据放入set缓存
* @param key
* @param values
* @return
*/
public long sSet(String key,Object... values){
try{
return redisTemplate.opsForSet().add(key,values);
}catch (Exception e){
e.printStackTrace();
return 0;
}
}
/**
* 将set数据放入缓存
* @param key
* @param time
* @param values
* @return
*/
public long sSetAndTime(String key,long time,Object... values){
try {
Long count = redisTemplate.opsForSet().add(key,values);
if (time > 0){
expire(key,time);
}
return count;
}catch (Exception e){
e.printStackTrace();
return 0;
}
}
/**
* 获取set缓存的长度
* @param key
* @return
*/
public long sGetSetSize(String key){
try {
return redisTemplate.opsForSet().size(key);
}catch (Exception e){
e.printStackTrace();
return 0;
}
}
/**
* 移除值为value的
* @param key
* @param values
* @return
*/
public long setRemove(String key,Object... values){
try {
Long count = redisTemplate.opsForSet().remove(key,values);
return count;
}catch (Exception e){
e.printStackTrace();
return 0;
}
}
/**
* 获取list缓存的内容
* @param key
* @param start
* @param end
* @return
*/
public List<Object> lGet(String key,long start,long end){
try {
return redisTemplate.opsForList().range(key,start,end);
}catch (Exception e){
e.printStackTrace();
return null;
}
}
/**
* 获取list缓存的长度
* @param key
* @return
*/
public long lGetListSize(String key){
try {
return redisTemplate.opsForList().size(key);
}catch (Exception e){
e.printStackTrace();
return 0;
}
}
/**
* 通过索引,获取list中的值
* @param key
* @param index
* @return
*/
public Object lGetIndex(String key,Long index){
try {
return redisTemplate.opsForList().index(key,index);
}catch (Exception e){
e.printStackTrace();
return null;
}
}
/**
* 将list放入缓存
* @param key
* @param value
* @return
*/
public boolean lSet(String key,Object value){
try {
redisTemplate.opsForList().rightPush(key,value);
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
* @param key
* @param value
* @return
*/
public boolean lSet(String key,Object value,long time){
try {
redisTemplate.opsForList().rightPush(key,value);
if (time > 0){
expire(key,time);
}
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
* @param key
* @param value
* @return
*/
public boolean lSet(String key,List<Object> value){
try {
redisTemplate.opsForList().rightPushAll(key,value);
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
* @param key
* @param value
* @return
*/
public boolean lSet(String key,List<Object> value,long time){
try {
redisTemplate.opsForList().rightPushAll(key,value);
if (time > 0){
expire(key,time);
}
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
/**
* 根据索引修改list中的某条数据
* @param key
* @param index
* @param value
* @return
*/
public boolean lUpdateIndex(String key,long index ,Object value){
try {
redisTemplate.opsForList().set(key,index,value);
return true;
}catch (Exception e){
e.printStackTrace();
return false;
}
}
public long lRemove(String key,long count,Object value){
try {
Long remove = redisTemplate.opsForList().remove(key,count,value);
return remove;
}catch (Exception e){
e.printStackTrace();
return 0;
}
}
}
由于我本人是看视频项目的,用到了web,所以这里测试大家自行准备,可以不用项目,直接一个测试类看看结果。
标签:set bean second collect config windows tor new cat
原文地址:https://www.cnblogs.com/Tu9oh0st/p/11109770.html