"一、Redis Jedis 1 导入 pom 节点 redis.clients jedis 2.9.0 2 连接 Redis private Jedis jedis; @Before public void before(){ //连接jedis jedis=new Jedis('192.168 ...."

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Java使用Redis

一、Redis Jedis

1 导入 pom 节点

   <dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>2.9.0</version>
    </dependency>

2 连接 Redis

private Jedis jedis;
@Before
</span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> before(){
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">连接jedis</span>
    jedis=<span style="color: rgba(0, 0, 255, 1)">new</span> Jedis("192.168.201.22"<span style="color: rgba(0, 0, 0, 1)">);
    jedis.ping();
    System.out.println(</span>"连接成功"<span style="color: rgba(0, 0, 0, 1)">);

}</span></pre>

3 Jedis 操作 String 类型数据

   //jedis 操作 String 类
    @Test
    public void  operationString(){
        jedis.select(1);
        //设置一个 String 类型的 key-value
        jedis.set("setkey01","setvalue01");
        //设置 key 有效时间
        jedis.expire("k1",10);
        String setkey01 = jedis.get("setkey01");
        System.out.println(setkey01);
        //修改 数据
        jedis.set("setkey01","setvalue02");
        //删除数据
        jedis.del("setkey01");
        //设置多个值
        jedis.mset("strkey01","strvalue01","strkey02","strvalue02","strkey03","strvalue03","strkey04","1");
        //+1 操作
        jedis.incr("strkey04");
        //-1 操作
        jedis.decr("strkey04");
        //拼接
        jedis.append("strkey04","append");}

4 jedis 操作 List 集合

//操作 List 集合
    @Test
    public void  operationlist(){
        jedis.select(1);
        //设置李 list 值，左侧插入
        jedis.lpush("listkey01","张三","李四","王五");
        //设置 list 值，右侧插入
        jedis.rpush("listkey02","张三","李四","王五");
        //获取 list 集合值
        List<String> listkey01 = jedis.lrange("listkey01", 0, -1);
        for (String item:listkey01){System.out.println(item);
        }
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">更改List集合数据</span>
    jedis.lset("listkey01", 0, "赵六"<span style="color: rgba(0, 0, 0, 1)">);

}</span></pre>

5 jedis 操作无序 set 集合

//操作无序 set 集合
    @Test
    public void operationset(){
        jedis.select(1);
        //设置 set 集合
        jedis.sadd("setkey01","张三","李四","王五");
        //读取
        Set<String>  setkey01 =jedis.smembers("setkey01");
        for (String item:setkey01){System.out.println(item);
        }
    }

6 jedis 操作有序 set 集合

//操作有序 set 集合
    @Test
    public void operationsortedset(){
        jedis.select(1);
        //设置 SortedSet 集合
        jedis.zadd("setkey02",1,"北京");
        jedis.zadd("setkey02",2,"上海");
        //获取 SortedSet
        Set<String>setkey02 =jedis.zrange("setkey02",0,-1);
        for (String item:setkey02){System.out.println(item);
        }
    }

7 jedis 操作 map 集合

//操作 map 集合
    @Test
    public void operationmap(){
        jedis.select(1);
        //设置 map 值
        Map<String ,String> map=new HashMap<>();
        map.put("name","张三");
        map.put("age","18");
        jedis.hmset("mapkey01",map);
    </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">获取值</span>
    List&lt;String &gt;value=jedis.hmget("mapkey01","name","age"<span style="color: rgba(0, 0, 0, 1)">);
    </span><span style="color: rgba(0, 0, 255, 1)">for</span><span style="color: rgba(0, 0, 0, 1)"> (String item:value){
        System.out.println(item);
    }

}</span></pre>

二、Java 代码

1 导入 pom 节点

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
  </parent>
<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

2 创建配置文件 application.yml

3 创建 SpringBootRedis 类

@Service
public class SpringBootRedis {
    @Resource
    private StringRedisTemplate stringRedisTemplate;
</span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> set(String key,Object value){
    </span><span style="color: rgba(0, 0, 255, 1)">if</span> (value <span style="color: rgba(0, 0, 255, 1)">instanceof</span><span style="color: rgba(0, 0, 0, 1)"> String){
        stringRedisTemplate.opsForValue().set(key,(String)value,</span>200L<span style="color: rgba(0, 0, 0, 1)">, TimeUnit.SECONDS);
    }</span><span style="color: rgba(0, 0, 255, 1)">else</span> <span style="color: rgba(0, 0, 255, 1)">if</span>(value <span style="color: rgba(0, 0, 255, 1)">instanceof</span><span style="color: rgba(0, 0, 0, 1)"> List){
        List</span>&lt;String&gt; list=<span style="color: rgba(0, 0, 0, 1)">(List)value;
        </span><span style="color: rgba(0, 0, 255, 1)">for</span><span style="color: rgba(0, 0, 0, 1)"> (String item:list){
            stringRedisTemplate.opsForList().leftPush(key,item);
        }
    }</span><span style="color: rgba(0, 0, 255, 1)">else</span> <span style="color: rgba(0, 0, 255, 1)">if</span>(value <span style="color: rgba(0, 0, 255, 1)">instanceof</span><span style="color: rgba(0, 0, 0, 1)"> Set){
        String[]objects</span>=(String[])((Set)value).toArray(<span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> String[((Set)value).size()]);
        stringRedisTemplate.opsForSet().add(key,objects);
    }</span><span style="color: rgba(0, 0, 255, 1)">else</span> <span style="color: rgba(0, 0, 255, 1)">if</span>(value <span style="color: rgba(0, 0, 255, 1)">instanceof</span><span style="color: rgba(0, 0, 0, 1)"> Map){
        stringRedisTemplate.opsForHash().putAll(key,(Map</span>&lt;?,?&gt;<span style="color: rgba(0, 0, 0, 1)">)value);
    }
}

}

4 创建 Controller 层 RedisController

@RestController
public class RedisController {
    @Resource
    private SpringBootRedis springBootRedis;
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">操作String类型数据</span>
@RequestMapping("/setString"<span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> setString(){
    springBootRedis.set(</span>"strkey","strvalue"<span style="color: rgba(0, 0, 0, 1)">);
}

</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">操作list集合数据 </span>
@RequestMapping("/setList"<span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> setList(){
    List</span>&lt;String &gt; strList=<span style="color: rgba(0, 0, 255, 1)">new</span> ArrayList&lt;&gt;<span style="color: rgba(0, 0, 0, 1)">();
    strList.add(</span>"张三"<span style="color: rgba(0, 0, 0, 1)">);
    strList.add(</span>"李四"<span style="color: rgba(0, 0, 0, 1)">);
    strList.add(</span>"王五"<span style="color: rgba(0, 0, 0, 1)">);
    springBootRedis.set(</span>"listkey"<span style="color: rgba(0, 0, 0, 1)">,strList);
}

</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">操作set集合数据</span>
@RequestMapping("/setSet"<span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> setSet(){
    Set</span>&lt;String&gt; set =<span style="color: rgba(0, 0, 255, 1)">new</span> HashSet&lt;&gt;<span style="color: rgba(0, 0, 0, 1)">();
    set.add(</span>"北京"<span style="color: rgba(0, 0, 0, 1)">);
    set.add(</span>"上海"<span style="color: rgba(0, 0, 0, 1)">);
    springBootRedis.set(</span>"setkey"<span style="color: rgba(0, 0, 0, 1)">,set);
}

</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">操作map集合数据</span>
@RequestMapping("/setMap"<span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> setMap(){
    Map map</span>=<span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> HashMap();
    map.put(</span>"name","张三"<span style="color: rgba(0, 0, 0, 1)">);
    map.put(</span>"age","18"<span style="color: rgba(0, 0, 0, 1)">);
    springBootRedis.set(</span>"setmap"<span style="color: rgba(0, 0, 0, 1)">,map);
}

}

Java使用Redis

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