redis 基础配置

基于spring boot

　　第一步：添加pom文件依赖：

　　　　　

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

　第二步：配置application文件
　　　　　

jedis :  
  pool :  
    host : 127.0.0.1  
    port : 6379  
    config :  
      maxTotal: 100  
      maxIdle: 10  
      maxWaitMillis : 100000

　　第三步：读取配置

import org.springframework.beans.factory.annotation.Autowired;  
import org.springframework.beans.factory.annotation.Qualifier;  
import org.springframework.beans.factory.annotation.Value;  
import org.springframework.context.annotation.Bean;  
import org.springframework.context.annotation.Configuration;  
  
import redis.clients.jedis.JedisPool;  
import redis.clients.jedis.JedisPoolConfig;  
  
@Configuration  
public class RedisConfiguration {  
      
    @Bean(name= "jedis.pool")  
    @Autowired  
    public JedisPool jedisPool(@Qualifier("jedis.pool.config") JedisPoolConfig config,   
                @Value("${jedis.pool.host}")String host,   
                @Value("${jedis.pool.port}")int port) {  
        return new JedisPool(config, host, port);  
    }  
      
    @Bean(name= "jedis.pool.config")  
    public JedisPoolConfig jedisPoolConfig (@Value("${jedis.pool.config.maxTotal}")int maxTotal,  
                                @Value("${jedis.pool.config.maxIdle}")int maxIdle,  
                                @Value("${jedis.pool.config.maxWaitMillis}")int maxWaitMillis) {  
        JedisPoolConfig config = new JedisPoolConfig();  
        config.setMaxTotal(maxTotal);  
        config.setMaxIdle(maxIdle);  
        config.setMaxWaitMillis(maxWaitMillis);  
        return config;  
    }  
      
}

第四步：调用工具类demo

import java.util.HashSet;
import java.util.Set;

import org.springframework.beans.factory.annotation.Autowired;  
import org.springframework.stereotype.Component;  
  
import redis.clients.jedis.Jedis;  
import redis.clients.jedis.JedisPool;  
  
/** 
 *  
 * @author Zhangyf
 * @param <T>
 * 
 */  
@Component  
public class RedisClient<T> {  
  
    @Autowired  
    private JedisPool jedisPool;  
      
    public void set(String key, String value) throws Exception {  
        Jedis jedis = null;  
        try {  
            jedis = jedisPool.getResource();  
            jedis.set(key, value);  
        } finally {  
            //返还到连接池  
            jedis.close();  
        }  
    }  
      
    public String get(String key) throws Exception  {  
  
        Jedis jedis = null;  
        try {  
            jedis = jedisPool.getResource();  
            return jedis.get(key);  
        } finally {  
            //返还到连接池  
            jedis.close();  
        }  
    }  
      
    public void setobj(String key, T value) throws Exception {  
        Jedis jedis = null;  
        try {  
            Set<T> set = new HashSet<T>();
            set.add(value);
            jedis = jedisPool.getResource();  
            jedis.sadd(key, String.valueOf(set));
        } finally {  
            //返还到连接池  
            jedis.close();  
        }  
    }
}

第五步：存取demo：

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.alibaba.fastjson.JSON;

import yxm.zyf.love.domian.RoomDO;
import yxm.zyf.love.mapper.RoomMapper;
import yxm.zyf.love.redistool.RedisClient;
import yxm.zyf.love.utils.LoggerUtil;
import yxm.zyf.love.utils.StringUtil;
import yxm.zyf.love.utils.URLencord;
import yxm.zyf.love.vo.payVo;

@RestController
public class hospitalpay {
    private final static Logger logger = Logger.getLogger(hospitalpay.class);//给类初始化日志对象

    @Autowired
    private RoomMapper roomMapper;

    @Autowired
    private RedisClient redisClinet;

    @ResponseBody
    @RequestMapping(value = "room")
    public RoomDO room() {
        RoomDO roomdo = null;
        try {
            roomdo = JSON.parseObject(redisClinet.get("room"), RoomDO.class);
            if (roomdo == null) {
                roomdo = roomMapper.selectByPrimaryKey(1);
                redisClinet.set("room", JSON.toJSONString(roomdo));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        LoggerUtil.info(logger, "出参roomdo：{0}", roomdo);//打印info级别的日志
        System.out.println(roomdo);
        return roomdo;
    }
}