Redis之set类型操作

时间:2021-11-02 15:55:55

接口:

package com.net.test.redis.base.dao;
/**
*
@author***
* @Time:2017年8月10日 下午2:32:12
*
@version 1.0
* @description
*/
public interface IRedisDaoNoSotredSet {

public void add(String key, String...values);

public void diff(String key, String otherKey);

public void diddStore(String destKey, String key, String otherKey);

public void inter(String key, String otherKey);

public void interStore(String destKey, String key, String otherKey);

public void union(String key, String otherKey);

public void unionStore(String destKey, String key, String otherKey);

public void pop(String key);

public void remove(String key,String...values);

public void size(String key);

public void smembers(String key);

}

 

实现类:

package com.net.test.redis.base.dao.imp;

import java.util.Set;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.SetOperations;
import org.springframework.stereotype.Repository;

import com.net.test.redis.base.dao.IRedisDaoNoSotredSet;

/**
*
@author ***
* @Time:2017年8月10日 下午2:53:33
*
@version 1.0
* @description
*/
@Repository
public class RedisDaoNoSotredSetImp implements IRedisDaoNoSotredSet{

@Autowired
private RedisTemplate<String, String> redis;

/**
* @description 添加元素
*
@param key
*
@param values
*/
@Override
public void add(String key, String...values)
{
SetOperations
<String, String> oper = redis.opsForSet();
int value = oper.add(key, values).intValue();
System.out.println(
"是否添加成功 :" + value);
}

/**
* @description 找出两个集合不同的部分,并进行遍历
*
@param key
*
@param otherKey
*/
@Override
public void diff(String key, String otherKey)
{
SetOperations
<String, String> oper = redis.opsForSet();
Set
<String> set = oper.difference(key,otherKey);
for(String str : set)
{
System.out.println(
"两个set的不同元素 : " + str);
}
}

/**
* @description 找出两个集合不同的部分,并存到destKey集合中
*
@param destKey
*
@param key
*
@param otherKey
*/
@Override
public void diddStore(String destKey, String key, String otherKey)
{
SetOperations
<String, String> oper = redis.opsForSet();
int value = oper.differenceAndStore(key, otherKey, destKey).intValue();
System.out.println(
"返回值 : " + value);
}

/**
* @description 找出两个集合的相同部分,并进行遍历
*
@param key
*
@param otherKey
*/
@Override
public void inter(String key, String otherKey)
{
SetOperations
<String, String> oper = redis.opsForSet();
Set
<String> set = oper.intersect(key, otherKey);
for(String str : set)
{
System.out.println(
"两个set的相同元素 : " + str);
}
}

/**
* @description 找出两个集合的相同部分,存到新集合destKey中
*
@param destKey
*
@param key
*
@param otherKey
*/
@Override
public void interStore(String destKey, String key, String otherKey)
{
SetOperations
<String, String> oper = redis.opsForSet();
int value = oper.intersectAndStore(key, otherKey, destKey).intValue();
System.out.println(
"返回值 : " + value);
}

/**
* @description 找出兩個集合的并集,并進行遍歷
*
@param key
*
@param otherKey
*/
@Override
public void union(String key, String otherKey)
{
SetOperations
<String, String> oper = redis.opsForSet();
Set
<String> set = oper.union(key, otherKey);
for(String str : set)
{
System.out.println(
"两个set的相同元素 : " + str);
}
}

/**
* @description 找出兩個集合的并集,并存放到新集合destKey中
*
@param destKey
*
@param key
*
@param otherKey
*/
@Override
public void unionStore(String destKey, String key, String otherKey)
{
SetOperations
<String, String> oper = redis.opsForSet();
int value = oper.unionAndStore(key, otherKey, destKey).intValue();
System.out.println(
"返回值 : " + value);
}

/**
* @description 无序集合,随机移除一个元素
*
@param key
*/
@Override
public void pop(String key)
{
SetOperations
<String, String> oper = redis.opsForSet();
String value
= oper.pop(key);
System.out.println(
"随机移除的value为 : " + value);
}

/**
* @description 根据给定的元素,去移除
*
@param key
*
@param values
*/
@Override
public void remove(String key, String...values)
{
SetOperations
<String, String> oper = redis.opsForSet();
int value = oper.remove(key, (Object[])values).intValue();
System.out.println(
"是否成功移除选定元素 : " + value);
}

/**
* @description 获取集合长度
*
@param key
*/
@Override
public void size(String key)
{
SetOperations
<String, String> oper = redis.opsForSet();
int value = oper.size(key).intValue();
System.out.println(
"set 集合长度为 : " + value);
}

/**
* @description 遍历整个集合
*
@param key
*/
@Override
public void smembers(String key)
{
SetOperations
<String, String> oper = redis.opsForSet();
Set
<String> set = oper.members(key);
for(String str : set)
{
System.out.println(
"两个set的相同元素 : " + str);
}
}

}