RedisTemplate 集成

简介：RedisTemplate 集成

一、添加依赖

<!--redis依赖 -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
    <version>2.4.2</version>
</dependency>

<!--补充redis依赖 创造bean失败-->
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-pool2</artifactId>
    <version>2.6.2</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.8.5</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.11.4</version>
</dependency>

二、创建一个配置类

@Configuration
public class RedisConfig {

    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        RedisSerializer<String> redisSerializer = new StringRedisSerializer();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        redisTemplate.setKeySerializer(redisSerializer);   
        redisTemplate.setHashKeySerializer(redisSerializer);
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer());  
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer());
        return redisTemplate;
    }

    private Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer() {
        Jackson2JsonRedisSerializer<Object> jsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        jsonRedisSerializer.setObjectMapper(objectMapper);
        return jsonRedisSerializer;
    }

}

三、创建一个测试Controller 

@RestController
public class TestController {

@Autowired
private RedisTemplate redisTemplate;

@GetMapping("")
public String test() {
    return "hello world";
}

@ApiOperation("参数设置 英文")
@GetMapping("/test/redisEn")
public void testRedis() {
    redisTemplate.opsForValue().set("name", "congbao");
    System.out.println("英文key设置成功");
}

@ApiOperation("参数设置 中文")
@GetMapping("/test/redisZh")
public void redisZh() {
    redisTemplate.opsForValue().set("name2", "葱爆");
    System.out.println("英文key设置成功");
}

@ApiOperation("查询是否存在英文key ")
@GetMapping("/test/redisHasEnKey")
public Boolean testRedisHasEnKey() {
    Boolean isExiKey = redisTemplate.hasKey("name");
    if (isExiKey) {
        System.out.println("存在英文key");
    }
    return isExiKey;
}

@ApiOperation("查询是否存在中文key ")
@GetMapping("/test/redisHasZhKey")
public Boolean testRedisHasZhKey() {
    Boolean isExiKey = redisTemplate.hasKey("name2");
    if (isExiKey) {
        System.out.println("存在中文key");
    }
    return isExiKey;
}

}

四、application 配置文件 配置redis

redis:
  host: 127.0.0.1
  port: 6379
  database: 0
  lettuce:
    pool:
      max-active: 20
      max-idle: 8
      max-wait: -1
      min-idle: 0

 五、测试

利用swagger文档测试

设置英文Key

点击对应接口 Try it out

同理 设置中文key  是否存在英文key  是否存在中文key也是

对name修改为中文