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文章列表

java 垃圾回收

    博客分类:
  • JVM
http://jbutton.iteye.com/blog/1569746
MyBatis学习总结(五)——实现关联表查询 [url] http://www.cnblogs.com/xdp-gacl/p/4264440.html [/url] mybatis传递动态表名查表 多表条件插入 [url] http://blog.csdn.net/u013929477/article/details/44617645 [/url] [url] http://luoyu-ds.iteye.com/blog/1517607 [/url]
http://www.jianshu.com/p/5c29c6c6d28c http://www.blogjava.net/yongboy/archive/2013/04/11/397677.html http://blog.csdn.net/linwei_1029/article/details/49420391 http://wenku.baidu.com/view/82d1e58f1a37f111f1855bf1.html?re=view

索引与执行计划

引用 http://www.cnblogs.com/jianggc/articles/2029854.html 引用 http://zhuyuehua.iteye.com/blog/1872202

单例模式

    博客分类:
  • JAVA
引用http://cantellow.iteye.com/blog/838473 引用http://www.blogjava.net/kenzhh/archive/2013/03/15/357824.html
引用http://blog.csdn.net/zhuanshenweiliu/article/details/38844741 引用http://justsee.iteye.com/blog/1570652 引用http://www.cnblogs.com/sharpxiajun/p/3395607.html

网络读取文件

    博客分类:
  • JAVA
引用http://blog.csdn.net/xb12369/article/details/40543649/
引用http://alex09.iteye.com/blog/539545/ 引用http://blog.csdn.net/zhuanshenweiliu/article/details/39177447
删除重复记录 delete from t_assets_collect where aai_id in( select aai_id from (select row_number() over(partition by aai_tag_number order by t.last_update_time desc) row_renum,t.* from t_assets_collect t) where row_renum>1) 引用http://www.cnblogs.com/252e/archive/2012/09/13/2682817.html http ...
http://blog.csdn.net/downloadsunlight2009/article/details/7514634
http://www.ibm.com/developerworks/cn/websphere/library/techarticles/1108_jiangwk_classloader/1108_jiangwk_classloader.html http://blog.itpub.net/145274/viewspace-591473/ http://www.ibm.com/developerworks/cn/websphere/library/techarticles/haoaili/0512/ http://3ms.huawei.com/hi/blog/41349_1800137.h ...
http://chinaxxren.iteye.com/blog/826260
select row_.* from (select t.*,row_number() over (order by t.id) as num from t_person_info t left join t_person_info d on t.id = d.id) row_  where num<= 500  and  num> 400 SELECT * FROM (SELECT ROWNUM AS rowno, t.*         FROM t_person_info  t         WHERE rownum <=500) table_alias    ...
Obj.wait(),与Obj.notify()必须要与 synchronized(Obj)一起使用,也就是wait,与notify是针对已经获取了Obj锁进行操作,从语法角度来说就是 Obj.wait(),Obj.notify必须在synchronized(Obj){...}语句块内。        从功能上来说wait就是说线程在获取对象锁 后,主动释放对象锁,同时本线程休眠。直到有其它线程调用对象的notify()唤醒该线程,才能继续获取对象锁,并继续执行。相应的notify()就 是对对象锁的唤醒操作。但有一点需要注意的是notify()调用后,并不是马上就释放对象锁的,而是在相应的s ...
isNotEmpty表示是否传的值为空或null isPropertyAvailable 表示有没有传入这个参数
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