Spring boot 连接Redis实现HMSET操作

这篇文章记录使用spring-boot-starter-redis访问Redis。Redis相关的的配置文件放在Resources目录下的application.yml文件中,如下所示:

spring:
  profiles: dev,default,test
  redis:
    database: 1
    host: 192.168.107.253 #redis test server
    port: 6379

首先在pom.xml中添加依赖:

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-redis</artifactId>
            <version>1.3.2.RELEASE</version>
        </dependency>

RedisTemplate配置

Spring boot默认能够使用 @Autowired 注入RedisTemplate<String, String>,但是我的需求是使用HMSET来操作Redis,访问Redis的模板类型为:RedisTemplate<String, Map<String, String>>,因此使用一个配置类进行配置。

创建JedisConnectionFactory

默认情况下,Spring boot就会为Redis注入默认值,如下图所示:

由于实际部署的Redis的主机、端口、数据库ID在application.yml配置文件中,因此使用 @Value 注入相应的值,

    @Value("${spring.redis.host}")
    private String host;

    @Value("${spring.redis.port}")
    private int port;

    @Value("${spring.redis.database}")
    private int databaseId;

然后在Jedis连接工厂时,主机、端口、数据库ID set进去即可。

    @Bean
    public JedisConnectionFactory jedisConnectionFactory() {
	JedisConnectionFactory factory = new JedisConnectionFactory();
	factory.setUsePool(true);
	JedisPoolConfig config = getRedisConfig();
	factory.setPoolConfig(config);
	factory.setHostName(host);
	factory.setPort(port);
	factory.setDatabase(databaseId);
	logger.info("host:{}, port:{}, database:{}", factory.getHostName(),factory.getPort(), factory.getDatabase());
	return factory;
    }

RedisTemplate创建需要传入JedisConnectionFactory,然后设置对象的序列化格式,如果未正确设置序列化格式,可能会导致写入的数据乱码

配置类使用 @Configuration 标识,整个类完整代码如下:

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;

import java.util.Map;

/**
 * Created by Administrator on 2018/4/9.
 */

@Configuration
public class LoginMacRedisConfig {

    private static final Logger logger = LoggerFactory.getLogger(LoginMacRedisConfig.class);

    @Value("${spring.redis.host}")
    private String host;

    @Value("${spring.redis.port}")
    private int port;

    @Value("${spring.redis.database}")
    private int databaseId;

    @Bean
    @ConfigurationProperties(prefix = "spring.redis")
    public JedisPoolConfig getRedisConfig() {
	JedisPoolConfig config = new JedisPoolConfig();
	return config;
    }

    @Bean
    public JedisConnectionFactory jedisConnectionFactory() {
	JedisConnectionFactory factory = new JedisConnectionFactory();
	factory.setUsePool(true);
	JedisPoolConfig config = getRedisConfig();
	factory.setPoolConfig(config);
	factory.setHostName(host);
	factory.setPort(port);
	factory.setDatabase(databaseId);
	logger.info("host:{}, port:{}, database:{}", factory.getHostName(),factory.getPort(), factory.getDatabase());
	return factory;
    }

    @Bean
    public RedisTemplate<String, Map<String, String>> redisTemplate() {
	final RedisTemplate<String, Map<String, String>> template = new RedisTemplate<>();
	template.setConnectionFactory(jedisConnectionFactory());

	StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
	template.setKeySerializer(stringRedisSerializer);
	template.setHashKeySerializer(stringRedisSerializer);
	template.setHashValueSerializer(stringRedisSerializer);
	return template;
    }
}

这样,我们就可以在其他类( @Service )中使用 @Autowired 注入RedisTemplate<String, Map<String, String>>了。这篇文章讨论了如何注入各种泛型的RedisTemplate。

    @Autowired
    private RedisTemplate<String, Map<String, String>> hmsetTemplate;

有个时候,我们需要在一个Spring Boot Application中使用多个RedisTemplate,可参考:[How to create a second RedisTemplate instance in a Spring Boot application

RedisTemplate HMSET操作

HMSET key field value [field value ...]

HMSET接受一个key,然后可以存储多个 field value。

	    Map<String, String> results = new HashMap<>();
	    results.put("mac_addr", mac);
	    results.put("cli_verstr", cli_verstr);
	    hmsetTemplate.opsForHash().putAll(uid, results);

具体完整代码以后再补充。

写入Redis成功后,连接redis查看最终结果:

redis-cli -h 192.168.107.253 -p 6379
redis 192.168.107.253:6379[1]> KEYS *
1) "1097672"
2) "1210073"
3) "162284"
redis 192.168.107.253:6379[1]> HGET 1097672 mac_addr
"7893f695112c465"
redis 192.168.107.253:6379[1]> HGET 1097672623 cli_verstr
"2.8"
posted @ 2018-04-09 19:46  大熊猫同学  阅读(4080)  评论(0编辑  收藏  举报