淘淘商城第七天筆記

1、內(nèi)容管理的。Cms系緩存可以使用redis使用solrRedis第一步：安裝gccyuminstallgcc-redis的源碼上傳到linux服務(wù)器。第五步：makeinstall啟動(dòng)1、redis.conf到redis的安2、修改redis.confdaemonizeredis-clip-hip<-c>連接集群時(shí)使用此參數(shù)只能在單機(jī)版環(huán)境使用。不支持redis客戶端與redis節(jié)點(diǎn)直連,不需要中間 RedisRedis16384Rediskey-value時(shí)，redis先對(duì)key使用crc16算法算出一個(gè)結(jié)果，然后把結(jié)果對(duì)16384求余數(shù)，這樣每個(gè)key都會(huì)對(duì)應(yīng)一個(gè)編號(hào)在0-16383之間的哈希槽，redis會(huì)根據(jù)節(jié)點(diǎn)數(shù)量大致均等的將哈搭建偽分布式，需要6個(gè)redis實(shí)例。第二步：修改redis.conf打開Cluster-enableyes第三步：需要一個(gè)ruby。在redis源碼文件夾下的src 第四步：把redis-trib.rb文件到到redis-cluster 第五步：執(zhí)行ruby之前，需要安裝ruby環(huán)境1、yuminstall2、yuminstall./redis-trib.rbcreate--replicas./redis-trib.rbcreate--replicas153:700153:700253:7004 -如何使用redisjavapublicvoidtestJedisSingle()publicvoidtestJedisSingle()throwsExceptionJedisjedis=newJedis("53",6379);jedis.set("test"," ojedis");Stringstring=jedis.get("test");}publicvoidtestJedisPool()throwsException JedisPooljedisPool=newJedisPool("53", Jedisjedis=jedisPool.getResource();Stringresult=jedis.get("test");}集群版使用項(xiàng)目中使用redisredis的單機(jī)版和集群版。當(dāng)*<p>Title:*<p>Description:*:@date20151120@versionpublicclass Singleimplements privateJedisPoolpublicStringset(Stringkey,String{Jedisjedis=jedisPool.getResource();Stringresult=jedis.set(key,value);return}publicStringget(Stringkey)Jedisjedis=jedisPool.getResource();Stringresult=jedis.get(key);return}publicLonghset(Stringkey,Stringitem,String{Jedisjedis=jedisPool.getResource();Longresult=jedis.hset(key,item,value);return}publicStringhget(Stringkey,String{Jedisjedis=jedisPool.getResource();Stringresult=jedis.hget(key,item);return}publicLongincr(Stringkey)Jedisjedis=jedisPool.getResource();Longresult=jedis.incr(key);return}}publicLongdecr(Stringkey)Jedisjedis=jedisPool.getResource();Longresult=jedis.decr(key);return}publicLongexpire(Stringkey,int{Jedisjedis=jedisPool.getResource();Longresult=jedis.expire(key,second);return}publicLongttl(Stringkey)Jedisjedis=jedisPool.getResource();Longresult=jedis.ttl(key);return}}<p>Title: <p>Description:*:@date20151120@versionpublicclassClusterimplements{privateJedisClusterpublicStringset(Stringkey,Stringvalue)returnjedisCluster.set(key,}publicStringget(Stringkey)return}publicLonghset(Stringkey,Stringitem,Stringvalue)returnjedisCluster.hset(key,item,}publicStringhget(Stringkey,Stringitem)returnjedisCluster.hget(key,}publicLongincr(Stringkey)return}publicLongdecr(Stringkey)return}publicLongexpire(Stringkey,intsecond)returnjedisCluster.expire(key,}publicLongttl(Stringkey)return}}<beanid="jedisPool"<bean Single" <!--<beanid="jedisCluster"<bean<constructor-argname="host"<constructor-argname="port"<bean<constructor-argname="host"<constructor-argname="port"<bean<constructor-argname="host"<beans ponent-scanbase- <constructor-<constructor-argname="port"<bean<constructor-argname="host"<constructor-argname="port"<bean<constructor-argname="host"<constructor-argname="port"<bean<constructor-argname="host"<constructor-argname="port"<beanCluster"Cluster"/>--publicpublicvoid Spring()throwsExceptionApplicationContextapplicationContext= = Stringstring=}publicList<TbContent>getContentList(Longcid)tryStringjson= .hget(REDIS_CONTENT_KEY,if(!StringUtils.isBlank(json))List<TbContent>list=JsonUtils.jsonToList(json,return}}catch(Exception{}TbContentExampleexample=newTbContentExample();Criteriacriteria=example.createCriteria();List<TbContent>list=return}try }catch(Exception{}系統(tǒng)不直接操作redis數(shù)據(jù)庫。服務(wù)的功能就是根據(jù)cid刪除redis中緩存數(shù)據(jù)。Dao使用 publicTaotaoResultsyncContent(Long{.hdel(REDIS_CONTENT_KEY,cid+return} public publicTaotaoResultsysncContent(@PathVariableLongcid)tryTaotaoResultresult=return}catch(Exception{returnTaotaoResult.build(500,}}2、搭建solr服務(wù)<<project""<!--Spring--2、安裝jdk第一步：安裝jdk第二步：解壓solr第四步：解壓縮war包。啟動(dòng)tomcat解壓。 第六步：創(chuàng)建solrhome。把/root/solr-4.10.3/example/solr文件夾一份作為solrhome。第七步：告訴solr服務(wù)solrhome的位置。需要修改web.xml第八步：啟動(dòng)tomcat分析器使用IK yzer yzer Sql語句：tb_itemLEFTJOINtb_item_catbONa.cid=b.idLEFTJOINtb_item_desccONa.id=c.item_id<field " publicpublicclassSolrJTestpublicvoidtestSolrJ()throwsExceptionSolrServersolrServer=new =new .addField("id",.addField("item_title""測(cè)試商品, }publicvoidtestQuery()throwsExceptionSolrServersolrServer=newSolrQueryquery=newSolrQuery();QueryResponseresponse= ListList=for:{}}}Daotb_itemLEFTJOINtb_item_catbONa.cid=b.idLEFTJOINtb_item_desccONa.id=c.item_ida.`status`=publicinterfaceItemMapperpublicinterfaceItemMapperList<SearchItem>}<?xmlversion=<?xmlversion="1.0"encoding="UTF-8"<!DOCTYPEmapperPUBLIC"-////DTDMapper""tb_itemLEFTJOINtb_item_catbONa.cid=b.idLEFTJOINtb_item_desccONa.id=c.item_ida.`status`=publicclassItemServiceImplimplementsItemServiceprivateSolrServersolrServer;privateItemMapperpublicTaotaoResultimportItems()throwsExceptionList<SearchItem>itemList=for(SearchItemitem:itemList) =new .addField("id",.addField("item_title",.add