大家好,又见面了,我是全栈君。
一:安装
(临时获取上手windows实验)
1.下载memcached.exe , 上F:\memcached\ 下
2.在CMD在输入 “F:\memcached\memcached.exe -d install” 安装.
3.再输入:”F:\memcached\memcached.exe -d start” 启动。以后memcached将作为windows的一个服务每次开机时自己主动启动。
这样server端已经安装完成了。
二:java引包
下面的包都是网上找的, 传说是阿里某高人封的
alisoft-xplatform-asf-cache-2.5.1.jar
hessian-3.0.1.jar
stax-api-1.0.1.jar
wstx-asl-2.0.2.jar
三:測试文件
package com.xxx.util; import java.util.ArrayList; import java.util.Date; import java.util.List; import com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient; import com.alisoft.xplatform.asf.cache.memcached.client.SockIOPool; import com.xxx.entity.attrGrid.Records; public class MemcachedManager { //创建MemCachedClient全局对象 private static MemCachedClient mcc = new MemCachedClient(); static { //创建服务器列表及其权重 String[] servers = {"127.0.0.1:11211"}; Integer[] weights = {3}; //创建Socket连接池对象 SockIOPool pool = SockIOPool.getInstance(); //设置服务器信息 pool.setServers(servers); pool.setWeights(weights); pool.setFailover(true); //设置初始连接数、最小和最大连接数以及最大处理时间 pool.setInitConn(5); pool.setMinConn(5); pool.setMaxConn(250); pool.setMaxIdle(1000*60*60*6); //设置主线程睡眠时间 pool.setMaintSleep(30); //设置TCP參数、连接超时等 pool.setNagle(false); pool.setSocketTO(3000); pool.setSocketConnectTO(0); pool.setAliveCheck(true); //初始化连接池 pool.initialize(); //压缩设置。超过指定大小(单位为K)的数据都会被压缩 mcc.setCompressEnable(true); mcc.setCompressThreshold(64 * 1024); } /** * 无參构造 */ protected MemcachedManager () { } protected static MemcachedManager instance = new MemcachedManager();//单例 public static MemcachedManager getInstance () { return instance; } /** * 加入对象到缓存中。构成方法重载 * @param key * @param value * @return */ public boolean add(String key,Object value) { return mcc.add(key, value); } public boolean add (String key,Object value,Date expiry) { return mcc.add(key, value,expiry); } public boolean replace (String key,Object value) { return mcc.replace(key, value); } public boolean replace (String key,Object value,Date expiry) { return mcc.replace(key, value, expiry); } /** * 依据指定的keyword获取对象 */ public Object get(String key) { return mcc.get(key); } /** * 利用MemCached对象将集合存入缓存。并从缓存中取出 */ public static void main(String[] args) { //得到MemcachedManager实例 MemcachedManager cache = MemcachedManager.getInstance(); //1插入 List<Records> recordsList = new ArrayList<Records>(); for( int i =0 ; i<5 ; i++ ) { Records records = new Records(); records.setPageSize(i); recordsList.add(records); cache.add("SELECT aaa FROM bbb WHERE "+i,records); } System.out.println("插入完毕==>"); //2获取 for( int i =0 ; i<9 ; i++ ) { Records records = (Records)cache.get("SELECT aaa FROM bbb WHERE "+i); if( null == records ) { System.out.println("dao层 再去查"); } else { String str = records.getPageSize().toString(); System.out.println("从缓存中取得的集合为:" + str); } } } }
四:现象
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.impl.DefaultCacheImpl – DefaultCache CheckService is start!
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ serializing for key: SELECT+aaa+FROM+bbb+WHERE+0 for class: com.tianditu.entity.attrGrid.Records
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ memcache cmd (result code): add SELECT+aaa+FROM+bbb+WHERE+0 8 0 451
(STORED)
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ data successfully stored for key: SELECT+aaa+FROM+bbb+WHERE+0
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ serializing for key: SELECT+aaa+FROM+bbb+WHERE+1 for class: com.tianditu.entity.attrGrid.Records
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ memcache cmd (result code): add SELECT+aaa+FROM+bbb+WHERE+1 8 0 451
(STORED)
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ data successfully stored for key: SELECT+aaa+FROM+bbb+WHERE+1
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ serializing for key: SELECT+aaa+FROM+bbb+WHERE+2 for class: com.tianditu.entity.attrGrid.Records
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ memcache cmd (result code): add SELECT+aaa+FROM+bbb+WHERE+2 8 0 451
(STORED)
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ data successfully stored for key: SELECT+aaa+FROM+bbb+WHERE+2
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ serializing for key: SELECT+aaa+FROM+bbb+WHERE+3 for class: com.tianditu.entity.attrGrid.Records
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ memcache cmd (result code): add SELECT+aaa+FROM+bbb+WHERE+3 8 0 451
(STORED)
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ data successfully stored for key: SELECT+aaa+FROM+bbb+WHERE+3
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ serializing for key: SELECT+aaa+FROM+bbb+WHERE+4 for class: com.tianditu.entity.attrGrid.Records
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ memcache cmd (result code): add SELECT+aaa+FROM+bbb+WHERE+4 8 0 451
(STORED)
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ data successfully stored for key: SELECT+aaa+FROM+bbb+WHERE+4
插入完毕==>
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ deserializing class com.tianditu.entity.attrGrid.Records
从缓存中取得的集合为:0
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ deserializing class com.tianditu.entity.attrGrid.Records
从缓存中取得的集合为:1
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ deserializing class com.tianditu.entity.attrGrid.Records
从缓存中取得的集合为:2
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ deserializing class com.tianditu.entity.attrGrid.Records
从缓存中取得的集合为:3
2014 14:30:31 INFO com.alisoft.xplatform.asf.cache.memcached.client.MemCachedClient – ++++ deserializing class com.tianditu.entity.attrGrid.Records
集合被从缓存制成:4
dao层 去检查
dao层 去检查
dao层 去检查
dao层 去检查
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