redis防止重复提交

public interface DistributedLock {
    boolean getLock(String var1, String var2, int var3);//加锁

    void unLock(String var1, String var2);//释放
}
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//

package com.pt.platform.core.redis.lock;

import com.pt.platform.core.ehcache.ObtainPropertiesInfo;
import com.pt.platform.core.redis.JedisSentinelPool;
import com.pt.platform.core.redis.lock.DistributedLock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import redis.clients.jedis.ShardedJedis;
import redis.clients.util.SafeEncoder;

public class RedisLock implements DistributedLock {
    private static final Logger logger = LoggerFactory.getLogger(RedisLock.class);
    private static final int DEFAULT_EXPIRE_TIME = 60;
    private static final String LOCK_KEY_PREFIX = "REDIS_LOCK";
    private JedisSentinelPool pool;

    public RedisLock() {
    }

    public JedisSentinelPool getPool() {
        return this.pool;
    }

    public void setPool(JedisSentinelPool pool) {
        this.pool = pool;
    }

    public boolean getLock(String module, String bizKey, int expireTime) {
        if(module != null && !"".equals(module) && bizKey != null && !"".equals(bizKey)) {
            if(this.getPool() != null) {
                ShardedJedis jedis = null;
                String lockKey = this.getLockKey(module, bizKey);

                boolean var10;
                try {
                    jedis = (ShardedJedis)this.getPool().getResource();//获取到数据源
                    long e = System.currentTimeMillis();
                    long result = jedis.setnx(SafeEncoder.encode(lockKey), SafeEncoder.encode(e + "")).longValue();
                    if(result == 1L) {
                        if(expireTime > 0) {
                            jedis.expire(SafeEncoder.encode(lockKey), expireTime);
                            if(logger.isDebugEnabled()) {
                                logger.debug("key:" + lockKey + " locked and expire time:" + expireTime + "s");
                            }
                        } else {
                            jedis.expire(SafeEncoder.encode(lockKey), 60);
                            if(logger.isDebugEnabled()) {
                                logger.debug("key:" + lockKey + " locked and expire time:" + 60 + "s");
                            }
                        }

                        var10 = true;
                        return var10;
                    }

                    if(logger.isDebugEnabled()) {
                        logger.debug("key:" + lockKey + " has already bean locked");
                    }

                    var10 = false;
                } catch (Exception var14) {
                    logger.error("lock error", var14);
                    boolean var7 = false;
                    return var7;
                } finally {
                    this.getPool().returnResource(jedis);
                }

                return var10;
            } else {
                logger.error("jedisSentinelPool is null");
                return true;
            }
        } else {
            logger.error("parameters is null");
            return false;
        }
    }

//删除key值释放锁
public void unLock(String module, String bizKey) { if(module == null || "".equals(module) || bizKey == null || "".equals(bizKey)) { logger.error("parameters is null"); } if(this.getPool() != null) { ShardedJedis jedis = null; String lockKey = this.getLockKey(module, bizKey); try { jedis = (ShardedJedis)this.getPool().getResource(); jedis.del(SafeEncoder.encode(lockKey)); } catch (Exception var9) { logger.error("unlock error", var9); } finally { this.getPool().returnResource(jedis); } } else { logger.error("jedisSentinelPool is null"); } }
//组装key值
private String getLockKey(String module, String bizKey) { StringBuffer sb = new StringBuffer(); sb.append("REDIS_LOCK").append(":").append(ObtainPropertiesInfo.getValByKey("app.code")).append(":").append(module).append(":").append(bizKey); return sb.toString(); } }
  private Map<String ,String> getResult(LaTFundRegDTO dto,UserInfo userInfo){
        Map<String,String> map=null;
        //加锁
        if(redisLock.getLock(FundConstant.REDIS_LOCK_MODEL_FUND, dto.getCreditorRightsNo(), 120)) {
            try{
                if (FundConstant.FUND_STATUS_3.equals(dto.getFundStatus())) {
                    service.updateReFund(dto, userInfo);
                } else if (FundConstant.FUND_STATUS_1.equals(dto.getFundStatus())) {
                    service.updatedoFundData(dto, userInfo);
                }
            }catch(Exception e){
                e.printStackTrace();
                map=new HashMap<String,String>();
                map.put("id",dto.getCreditorRightsNo());
                map.put("msg",e.getMessage());
                logger.error("",e);
            }finally{
                redisLock.unLock(FundConstant.REDIS_LOCK_MODEL_FUND,dto.getCreditorRightsNo());
            }
        }else{
            map=new HashMap<String,String>();
            map.put("id",dto.getId()+"");
            map.put("msg","不允许重复发起放款操作");
            logger.error("不允许重复发起放款操作");
        }
        return map;
    }

 

posted @ 2017-02-06 09:54  也许还年轻  阅读(7300)  评论(1编辑  收藏  举报