stringRedisTemplate

SpringDataRedis中提供了RedisTemplate工具类,其中封装了各种对Redis的操作,并且将不同数据类型的操作api封装到了不同的类型中。

导入依赖:

 <!-- redis -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <!-- commons -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>

String类型:

//注入StringRedisTemplate
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
@Test
void testString() {
    log.info("测试String类型:");
    //插入一条String类型的数据
    stringRedisTemplate.opsForValue().set("name3", "天才韦彦祖");
    //获取一条String类型的数据
    String name = stringRedisTemplate.opsForValue().get("name3");
    System.out.println(name);
}

[root@VM-12-3-centos ~]# redis-cli --raw -a 1234   #要加--raw,不然中文会乱码
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
127.0.0.1:6379> get name
天才韦彦祖

存入对象:

加入ObjectMapper的相关依赖:

  <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.5</version>
        </dependency>
    &lt;!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core --&gt;
    &lt;dependency&gt;
        &lt;groupId&gt;com.fasterxml.jackson.core&lt;/groupId&gt;
        &lt;artifactId&gt;jackson-core&lt;/artifactId&gt;
        &lt;version&gt;2.9.5&lt;/version&gt;
    &lt;/dependency&gt;

    &lt;!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations --&gt;
    &lt;dependency&gt;
        &lt;groupId&gt;com.fasterxml.jackson.core&lt;/groupId&gt;
        &lt;artifactId&gt;jackson-annotations&lt;/artifactId&gt;
        &lt;version&gt;2.9.5&lt;/version&gt;
    &lt;/dependency&gt;

实体类:

package com.starQeem.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
@AllArgsConstructor
@NoArgsConstructor
@Data
public class User {
private String name;
private Integer age;
}

测试:

   private static final ObjectMapper mapper = new ObjectMapper();
@Test
void testUser() throws IOException {
    log.info("测试存入对象:");
    //创建对象
    User user = new User("天才韦彦祖韦彦祖真帅",18);
    //手动序列化
    String json = mapper.writeValueAsString(user);
    //写入数据
    stringRedisTemplate.opsForValue().set("user:300",json);
    //获取数据
    String s = stringRedisTemplate.opsForValue().get("user:300");
    //手动反序列化
    User user1 = mapper.readValue(s, User.class);
    System.out.println("user:300 = "+user1);

}

127.0.0.1:6379> get user:300
{"name":"天才韦彦祖韦彦祖真帅","age":18}
127.0.0.1:6379> 

其它类型:

 //操作Hash类型
    @Test
    void testHash(){
        log.info("操作Hash类型:");
        //插入数据
        stringRedisTemplate.opsForHash().put("dish","name","fish");
        stringRedisTemplate.opsForHash().put("dish","price","30");
        //获取数据
        System.out.println(stringRedisTemplate.opsForHash().get("dish", "name"));
        System.out.println(stringRedisTemplate.opsForHash().get("dish", "price"));
    }
    //操作List类型
    @Test
    void testList(){
        log.info("操作list类型:");
        //插入数据
        stringRedisTemplate.opsForList().leftPushAll("score","88","99","100","99","88");
        //获取数据
        System.out.println(stringRedisTemplate.opsForList().range("score", 0, 4));
    }
    //操作set类型
    @Test
    void testSet(){
        log.info("操作Set类型:");
        //插入数据
        stringRedisTemplate.opsForSet().add("t5","a","b","c","d");
        //获取数据
        System.out.println(stringRedisTemplate.opsForSet().members("t5"));
    }
    //操作sorted set类型
    @Test
    void testSortedSet(){
        log.info("操作Sorted set类型:");
        //插入数据
        stringRedisTemplate.opsForZSet().add("English","张三",88);
        stringRedisTemplate.opsForZSet().add("English","星星",100);
        stringRedisTemplate.opsForZSet().add("English","Qeem",99);
        //获取数据
        System.out.println(stringRedisTemplate.opsForZSet().range("English", 0, 2));
    }