<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[liubaoquan_java的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/liubaoquan_java</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; liubaoquan_java]]></copyright><item><title><![CDATA[跨域请求]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/79298838</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/79298838</guid><author>liubaoquan_java</author><pubDate>Fri, 09 Feb 2018 15:37:01 +0800</pubDate><description><![CDATA[CORS是一个W3C标准，全称是&quot;跨域资源共享&quot;（Cross-origin resource sharing）。                                                                                                                它允许浏览器向跨源服务器，发出XMLHttpRequest请求，...]]></description><category></category></item><item><title><![CDATA[@Transactional事务不起作用的解决]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/47342061</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/47342061</guid><author>liubaoquan_java</author><pubDate>Fri, 07 Aug 2015 17:07:30 +0800</pubDate><description><![CDATA[问题

        使用spring的配置事物注解@Transactional，在测试的时候发现不起作用。

配置文件
    
        destroy-method="close">]]></description><category></category></item><item><title><![CDATA[Curator连接状态源码浅析]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/44275949</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/44275949</guid><author>liubaoquan_java</author><pubDate>Sun, 15 Mar 2015 12:23:08 +0800</pubDate><description><![CDATA[Curator zookeeper]]></description><category></category></item><item><title><![CDATA[Zookeeper锁的简单实现]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/42463549</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/42463549</guid><author>liubaoquan_java</author><pubDate>Tue, 06 Jan 2015 19:16:29 +0800</pubDate><description><![CDATA[最近正在学习ZooKeeper，这个工具有两个比较典型的入门小应用就是配置文件管理和锁实现。
自己写了锁实现分布式程序的不同线程同步处理。
想想有很多漏洞，如断网，服务器不可用等情况，不能完全实现锁安全和准确，只能做到相对安全。
锁的工具类：






package cn.free8day.zk.lock;

import java.util.Collections;]]></description><category></category></item><item><title><![CDATA[单例的七种写法]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41968613</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41968613</guid><author>liubaoquan_java</author><pubDate>Tue, 16 Dec 2014 21:58:29 +0800</pubDate><description><![CDATA[http://www.360doc.com/content/14/0218/15/7669533_353537401.shtml
写的很全
个人喜欢内部静态类方式
双重加锁检查模式没有太多的优点。


原文如下：


Java：单例模式的七种写法



转载出处：http://cantellow.javaeye.com/blog/838473


第一种（懒汉，线程]]></description><category></category></item><item><title><![CDATA[tomcat线程池设置]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41890429</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41890429</guid><author>liubaoquan_java</author><pubDate>Fri, 12 Dec 2014 10:06:24 +0800</pubDate><description><![CDATA[转：http://my.oschina.net/u/1266624/blog/163539



开源中国 Team 团队协作平台正式开放 —— http://team.oschina.net


tomcat

线程池 



web server允许的最大线程连接数还受制于操作系统的内核参数设置,通常Windows是2000个左右，Linux是1000个左右。

]]></description><category></category></item><item><title><![CDATA[微信定时长服务，处理思路]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41846173</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41846173</guid><author>liubaoquan_java</author><pubDate>Wed, 10 Dec 2014 14:57:29 +0800</pubDate><description><![CDATA[主要采用（简单）
ExecutorService es = Executors.newFixedThreadPool(100);

public class Synchroniz_Task implements Runnable {
        public Synchroniz_Task(Callable call) {
            c = call;
       ]]></description><category></category></item><item><title><![CDATA[徐汉彬：Web系统大规模并发——电商秒杀与抢购]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41720061</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41720061</guid><author>liubaoquan_java</author><pubDate>Thu, 04 Dec 2014 09:59:28 +0800</pubDate><description><![CDATA[徐汉彬：Web系统大规模并发——电商秒杀与抢购


http://www.youkuaiyun.com/article/2014-11-28/2822858


总结：
其实我所在的公司今年双11也出现过这样的问题。
应该适当考虑过载保护，重复请求过滤等技术]]></description><category></category></item><item><title><![CDATA[Encode和Decode作用，意义和用法]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41719057</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/41719057</guid><author>liubaoquan_java</author><pubDate>Thu, 04 Dec 2014 07:30:01 +0800</pubDate><description><![CDATA[http://www.cnblogs.com/shishm/articles/1614407.html
http://mikzhang.iteye.com/blog/1101705]]></description><category></category></item><item><title><![CDATA[两个jar包中，有相同资源，如何加载。]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40684903</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40684903</guid><author>liubaoquan_java</author><pubDate>Sat, 01 Nov 2014 21:02:36 +0800</pubDate><description><![CDATA[两个jar包中，有相同资源，如何加载



public static void main(String[] args) {
        try {
            Enumeration ps = Thread.currentThread().getContextClassLoader().getResources("test.properties");]]></description><category></category></item><item><title><![CDATA[文件流形式下载，服务器不存储问题。]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40581703</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40581703</guid><author>liubaoquan_java</author><pubDate>Wed, 29 Oct 2014 09:49:03 +0800</pubDate><description><![CDATA[固定思维，以前一直下载服务器文件，]]></description><category></category></item><item><title><![CDATA[Mysql数据库的链接方式]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40536145</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40536145</guid><author>liubaoquan_java</author><pubDate>Tue, 28 Oct 2014 10:00:15 +0800</pubDate><description><![CDATA[数据库的链接方式
控制]]></description><category></category></item><item><title><![CDATA[delete和truncate的区别]]></title><link>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40512965</link><guid>https://blog.youkuaiyun.com/liubaoquan_java/article/details/40512965</guid><author>liubaoquan_java</author><pubDate>Mon, 27 Oct 2014 19:39:08 +0800</pubDate><description><![CDATA[[sql] 
view plaincopyprint?


测试省略    delete命令并不能完全释放掉表格或者索引的数据结构以及他们申请的页面。  在这一点上，SQL Server2005以后的版本比之前的版本做得好些，树比堆做  得更好些。      TRUNCATE语句和DELETE语句相比具有以下优点:      1,所用的事务日志空间较少    delete每删除一行数据，都]]></description><category></category></item></channel></rss>