新增jedis和fastjson依賴

配置redis

package cn.tedu.miaosha.redis;

public  abstract class BasePrefix implements KeyPrefix {
	private  int expireSeconds;
	private String prefix;
	
	public  BasePrefix(String prefix) {//0代表永不過期
		this(0, prefix);
	}
	
	
	public BasePrefix(int expireSeconds,String prefix){
		this.expireSeconds = expireSeconds;
		this.prefix = prefix;
		
	}

	@Override
	public int expireSeconds() {//預設0代表永不過期
		// TODO Auto-generated method stub
		return expireSeconds;
	}

	@Override
	public String getPrefix() {
		String className = getClass().getSimpleName();
		// TODO Auto-generated method stub
		return className+"："+ prefix;
	}

}
 

package cn.tedu.miaosha.redis;

public interface KeyPrefix {
	public int expireSeconds();
	
	public String getPrefix();

}

package cn.tedu.miaosha.redis;

public class OrderKey extends BasePrefix {

	public OrderKey(int expireSeconds, String prefix) {
		super(expireSeconds, prefix);
		// TODO Auto-generated constructor stub
	}

}
 

package cn.tedu.miaosha.redis;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix="redis")
public class RedisConfig {
	private String host;
	private int port;
	private int timeout;//秒
	private String password;
	private int poolMaxTotal;
	private int poolMaxIdle;
	private int poolMaxWait;//秒
	public String getHost() {
		return host;
	}
	public void setHost(String host) {
		this.host = host;
	}
	public int getPort() {
		return port;
	}
	public void setPort(int port) {
		this.port = port;
	}
	public int getTimeout() {
		return timeout;
	}
	public void setTimeout(int timeout) {
		this.timeout = timeout;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public int getPoolMaxTotal() {
		return poolMaxTotal;
	}
	public void setPoolMaxTotal(int poolMaxTotal) {
		this.poolMaxTotal = poolMaxTotal;
	}
	public int getPoolMaxIdle() {
		return poolMaxIdle;
	}
	public void setPoolMaxIdle(int poolMaxIdle) {
		this.poolMaxIdle = poolMaxIdle;
	}
	public int getPoolMaxWait() {
		return poolMaxWait;
	}
	public void setPoolMaxWait(int poolMaxWait) {
		this.poolMaxWait = poolMaxWait;
	}

}
 

package cn.tedu.miaosha.redis;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;

import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

@Service
public class RedisPoolFactory {

	@Autowired
	RedisConfig redisConfig;
	
	@Bean
	public JedisPool JedisPoolFactory() {
		JedisPoolConfig poolConfig = new JedisPoolConfig();
		poolConfig.setMaxIdle(redisConfig.getPoolMaxIdle());
		poolConfig.setMaxTotal(redisConfig.getPoolMaxTotal());
		poolConfig.setMaxWaitMillis(redisConfig.getPoolMaxWait() * 1000);
		JedisPool jp = new JedisPool(poolConfig, redisConfig.getHost(), redisConfig.getPort(),
				redisConfig.getTimeout()*1000, redisConfig.getPassword(), 0);
		return jp;
	}
	
}

package cn.tedu.miaosha.redis;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.alibaba.fastjson.JSON;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

@Service
public class RedisService {
	
	@Autowired
	JedisPool jedisPool;
	
	/**
	 * 獲取當個物件
	 * */
	public <T> T get(KeyPrefix prefix, String key,  Class<T> clazz) {
		 Jedis jedis = null;
		 try {
			 jedis =  jedisPool.getResource();
			 //生成真正的key
			 String realKey  = prefix.getPrefix() + key;
			 String  str = jedis.get(realKey);
			 T t =  stringToBean(str, clazz);
			 return t;
		 }finally {
			  returnToPool(jedis);
		 }
	}
	
	/**
	 * 設定物件
	 * */
	public <T> boolean set(KeyPrefix prefix, String key,  T value) {
		 Jedis jedis = null;
		 try {
			 jedis =  jedisPool.getResource();
			 String str = beanToString(value);
			 if(str == null || str.length() <= 0) {
				 return false;
			 }
			//生成真正的key
			 String realKey  = prefix.getPrefix() + key;
			 int seconds =  prefix.expireSeconds();
			 if(seconds <= 0) {
				 jedis.set(realKey, str);
			 }else {
				 jedis.setex(realKey, seconds, str);
			 }
			 return true;
		 }finally {
			  returnToPool(jedis);
		 }
	}
	
	/**
	 * 判斷key是否存在
	 * */
	public <T> boolean exists(KeyPrefix prefix, String key) {
		 Jedis jedis = null;
		 try {
			 jedis =  jedisPool.getResource();
			//生成真正的key
			 String realKey  = prefix.getPrefix() + key;
			return  jedis.exists(realKey);
		 }finally {
			  returnToPool(jedis);
		 }
	}
	
	/**
	 * 增加值
	 * */
	public <T> Long incr(KeyPrefix prefix, String key) {
		 Jedis jedis = null;
		 try {
			 jedis =  jedisPool.getResource();
			//生成真正的key
			 String realKey  = prefix.getPrefix() + key;
			return  jedis.incr(realKey);
		 }finally {
			  returnToPool(jedis);
		 }
	}
	
	/**
	 * 減少值
	 * */
	public <T> Long decr(KeyPrefix prefix, String key) {
		 Jedis jedis = null;
		 try {
			 jedis =  jedisPool.getResource();
			//生成真正的key
			 String realKey  = prefix.getPrefix() + key;
			return  jedis.decr(realKey);
		 }finally {
			  returnToPool(jedis);
		 }
	}
	
	private <T> String beanToString(T value) {
		if(value == null) {
			return null;
		}
		Class<?> clazz = value.getClass();
		if(clazz == int.class || clazz == Integer.class) {
			 return ""+value;
		}else if(clazz == String.class) {
			 return (String)value;
		}else if(clazz == long.class || clazz == Long.class) {
			return ""+value;
		}else {
			return JSON.toJSONString(value);
		}
	}

	@SuppressWarnings("unchecked")
	private <T> T stringToBean(String str, Class<T> clazz) {
		if(str == null || str.length() <= 0 || clazz == null) {
			 return null;
		}
		if(clazz == int.class || clazz == Integer.class) {
			 return (T)Integer.valueOf(str);
		}else if(clazz == String.class) {
			 return (T)str;
		}else if(clazz == long.class || clazz == Long.class) {
			return  (T)Long.valueOf(str);
		}else {
			return JSON.toJavaObject(JSON.parseObject(str), clazz);
		}
	}

	private void returnToPool(Jedis jedis) {
		 if(jedis != null) {
			 jedis.close();
		 }
	}

}

package cn.tedu.miaosha.redis;

public class UserKey extends BasePrefix{

	
	private UserKey( String prefix) {
		super(prefix);
		
	}
	public static UserKey getById = new UserKey("id");
	public static UserKey getByName = new UserKey("name");
	


}