使用redis生成订单号

package com.shopping.app.util;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
import redis.clients.jedis.*;

import java.util.List;
import java.util.Map;
import java.util.Set;
import redis.clients.jedis.BinaryClient.LIST_POSITION;
import redis.clients.util.SafeEncoder;

@Service
public class RedisManager {

    @Autowired
    @Qualifier("jedisPool")
    JedisPool jedisPool;

    private Logger log = Logger.getLogger(this.getClass());
    /** 操作Key的方法 */
    public Keys KEYS = new Keys();
    /** 对存储结构为String类型的操作 */
    public Strings STRINGS = new Strings();
    /** 对存储结构为List类型的操作 */
    public Lists LISTS = new Lists();
    /** 对存储结构为Set类型的操作 */
    public Sets SETS =new Sets();
    /** 对存储结构为HashMap类型的操作 */
    public Hash HASH = new Hash();
    /** 对存储结构为Set(排序的)类型的操作 */
    public SortSet SORTSET = new SortSet();
public  Long orderId(String prefix){
        Jedis jedis = jedisPool.getResource();
        String key = "tl_order_id" + prefix;
        String orderId = null;
        try {
            Long index = jedis.incr(key);   //00001
            orderId = prefix + String.format("%1$05d", index);
        }catch(Exception e){
            System.out.println("生成订单号异常");

        }finally {
            if(null != jedis){
                jedis.close();
            }
        }
        return Long.valueOf(orderId);
    }
}

 

package com.shopping.test;

import com.shopping.app.util.RedisManager;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.Jedis;

import java.util.Calendar;
import java.util.Date;

public class Test {
    @Autowired
    RedisManager redisManager;

    public static String getOrderIDPrefix(Date date){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        int year = c.get(Calendar.YEAR);
        int day = c.get(Calendar.DAY_OF_YEAR);  //从今天属于今年的第多少天？365 2位 3位 267 001
        int hour = c.get(Calendar.HOUR_OF_DAY);
        String dayFmt = String.format("%1$03d", day);
        String hourFmt = String.format("%1$02d", hour);
        return (year - 2000) + dayFmt + hourFmt;
    }

}

        String prefix= Test.getOrderIDPrefix(new Date());
        System.out.println(prefix);
        String orderId=redisManager.orderId(prefix).toString();
        System.out.println("生成的订单号："+orderId);