redis 初步使用

Posted 2021-03-08 earlybridvic

<dependency>
			<groupId>redis.clients</groupId>
			<artifactId>jedis</artifactId>
			<version>2.8.2</version>
</dependency>


import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import redis.clients.jedis.JedisPool;

@Configuration
public class RedisConfig {

    @Bean(name = "redisPool")
    public JedisPool jedisPool(@Value("${jedis.host}") String host,
                               @Value("${jedis.port}") int port) {
        return new JedisPool(host, port);
    }
}


import org.springframework.stereotype.Component;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

import javax.annotation.Resource;

// http://redis.cn/
@Component
public class RedisClient {

    @Resource(name = "redisPool")
    private JedisPool jedisPool;

    public void set(String key, String value) throws Exception {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.set(key, value);
        } finally {
            if (jedis != null) {
                jedis.close();
            }
        }
    }


    public String get(String key) throws Exception {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.get(key);
        } finally {
            if (jedis != null) {
                jedis.close();
            }
        }
    }
}


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping("/cache")
public class CacheController {

    @Autowired
    private RedisClient redisClient;

    @RequestMapping("/set")
    @ResponseBody
    public String set(@RequestParam("k") String k, @RequestParam("v") String v)
            throws Exception {
        redisClient.set(k, v);
        return "SUCCESS";
    }

    @RequestMapping("/get")
    @ResponseBody
    public String get(@RequestParam("k") String k) throws Exception {
        return redisClient.get(k);
    }
}